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John Honorary cruncher
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Welcome to the Autumnal Equinox Challenge
This year's autumnal equinox occurs on 23 September. Come join us as we usher in the fall and cooler temperatures with a 13 day marathon on the Woodall Prime Search project. To participate in the Challenge, please select only the Woodall Prime Search (LLR) project in your PrimeGrid preferences section. The challenge will begin 23 Sep 2011 18:00 UTC and end 06 Oct 2011 18:00 UTC. Application builds are available for Linux 32 bit, Windows 32 bit and MacIntel. These applications will be sent to 64 bit clients. As with all LLR application projects, there is no advantage of 64 bit over 32 bit.
ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your computer. WU's will take ~30-45 hours on fast/newer computers and 75+ hours on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. :)
Restricted airflow is one of the primary reasons for overheating. Take the time to monitor the fans and review the dust buildup. Please, please, please make sure your machines are up to the task.
Time zone converter
The World Clock - Time Zone Converter
NOTE: The countdown clock on the front page uses the host computer time. Therefore, if your computer time is off, so will the countdown clock. For precise timing, use the UTC Time in the data section to the left of the countdown clock.
Scoring Information
Scores will be kept for individuals and teams. Only work units issued AFTER 23 Sep 2011 18:00 UTC and received BEFORE 06 Oct 2011 18:00 UTC will be considered for credit. We will use the "prime score" method which is based on the n value (k*b^n-1) to score the challenge. The only difference is that the primary and double checker of a WU will receive the same score.
Therefore, each completed WU will earn a unique score based on its n value. The higher the n, the higher the score. This is different than BOINC cobblestones! A quorum of 2 is NOT needed to award Challenge score - i.e. no double checker. Therefore, each returned result will earn a Challenge score. Please note that if the result is eventually declared invalid, the score will be removed.
For details on how the score is calculated, please see this thread.
At the Conclusion of the Challenge
We kindly ask users "moving on" to ABORT their WU's instead of DETACHING, RESETTING, or PAUSING.
ABORTING WU's allows them to be recycled immediately; thus a much faster "clean up" to the end of an LLR Challenge. DETACHING, RESETTING, and PAUSING WU's causes them to remain in limbo until they EXPIRE. Therefore, we must wait until WU's expire to send them out to be completed.
Please consider either completing what's in the queue or ABORTING them. Thank you. :)
About Woodall Prime Search
Woodall Numbers (sometimes called Cullen numbers 'of the second kind') are positive integers of the form Wn = n*2^n-1, where n is also a positive integer greater than zero. Woodall numbers that are prime are called Woodall primes (or Cullen primes of the second kind).
The Woodall numbers Wn are primes for the following n:
2, 3, 6, 30, 75, 81, 115, 123, 249, 362, 384, 462, 512, 751, 822, 5312, 7755, 9531, 12379, 15822, 18885, 22971, 23005, 98726, 143018, 151023, 667071, 1195203, 1268979, 1467763, 2013992, 2367906, and 3752948 and composite for all other n less than 9108979.
It is conjectured that there are infinitely many such primes. Currently, PirmeGrid is testing for Woodall primes in the n=9.1M level (M=mega, 10^6). The last 3 Woodall primes found by PrimeGrid are:
2013992*2^2013992−1 (Lasse Mejling Andersen): official announcement | decimal representation | Prime Pages Entry
2367906*2^2367906−1 (Stephen Kohlman): official announcement | decimal representation | Prime Pages Entry
3752948*2^3752948−1 (Matthew J. Thompson): official announcement | decimal representation | Prime Pages Entry
For more information on Woodall numbers, please visit the following sites:
What is LLR?
The Lucas-Lehmer-Riesel (LLR) test is a primality test for numbers of the form N = k*2^n - 1, with 2^n > k. Also, LLR is a program developed by Jean Penne that can run the LLR-tests. It includes the Proth test to perform +1 tests and PRP to test non base 2 numbers. See also:(Edouard Lucas: 1842-1891, Derrick H. Lehmer: 1905-1991, Hans Riesel: born 1929)
About the Autumnal Equinox
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If I sieve the project through BOINC will it still count for the challenge or is it only if you run the LLR?
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mfbabb2Volunteer tester
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If I sieve the project through BOINC will it still count for the challenge or is it only if you run the LLR?
Only Woodall Prime Search (LLR).
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Murphy (AtP)
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Alright thanks for clarifying that babb |
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 Crun-chiVolunteer tester
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What is average score per WU?
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92*10^1439761-1 NEAR-REPDIGIT PRIME :) :) :)
4 * 650^498101-1 CRUS PRIME
2022202116^131072+1 GENERALIZED FERMAT
Proud member of team Aggie The Pew. Go Aggie! |
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What is average score per WU?
I receive between 2,540 and 3,000 credits/wu. It looks like credit is capped at 3,000. |
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What is average score per WU?
I receive between 2,540 and 3,000 credits/wu. It looks like credit is capped at 3,000.
You may already know this but the credits applied to the challenge calculations are different than those given out for a subproject to count on your badges and credit total. |
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Crun-chiVolunteer tester
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So what credits will be on days of challange?
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92*10^1439761-1 NEAR-REPDIGIT PRIME :) :) :)
4 * 650^498101-1 CRUS PRIME
2022202116^131072+1 GENERALIZED FERMAT
Proud member of team Aggie The Pew. Go Aggie! |
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rroonnaallddVolunteer developer
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So what credits will be on days of challange?
I believe the credits will be the same but the calculation for the challenge points is different.
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Best wishes. Knowledge is power. by jjwhalen
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Hhhmm. Looks like the vermin are lining up for a beefy snack.
Suggest we go Dutch.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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JohnHonorary cruncher
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Special Download Note
If you have not completed an LLR task since Feb 2011, please consider completing one before the Challenge. The new LLR application is substantially larger than the previous (~5MB vs. 26MB now).
If you have completed an LLR task since 6 Feb 2011 then you are fine. If not, then it is suggested that you complete 1 task from a short task project such as SGS (LLR) or PPS (LLR). This will insure that you have the latest application and free up resources for the server to deliver tasks instead of the large application. :)
This applies to each host you'll be connecting to the Challenge.
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JohnHonorary cruncher
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A Cautionary Reminder
ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your computer. WU's will take ~60-70 hours on fast/newer computers and 100+ hours on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. :)
Restricted airflow is one of the primary reasons for overheating. Take the time to monitor the fans and review the dust buildup. Please, please, please make sure your machines are up to the task.
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JohnHonorary cruncher
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How to Join the Challenge
To participate in the Challenge, please select only the The Woodall Prime Search (LLR) project in your PrimeGrid preferences section. Also, set "Send work from any subproject if selected projects have no work" to no to guarantee that no other work will be sent. The challenge will begin 23 September 2011 18:00 UTC and end 06 October 2011 18:00 UTC.
ATTENTION: The primality program LLR is CPU intensive and the WU's for this Challenge are several hours long; so, it is vital to have a stable system (solid hardware) with GOOD COOLING. Invalid WU's will not receive credit.
Application builds are available for the following:
- Microsoft Windows (98 or later) running on an Intel x86-compatible CPU
- Linux running on an Intel x86-compatible CPU
- Mac OS 10.4 or later running on Intel
Note: As with all LLR application projects, there is no advantage of 64 bit over 32 bit.
Time zone converter:
The World Clock - Time Zone Converter
NOTE: The countdown clock on the front page uses the host computer time. Therefore, if your computer time is off, so will the countdown clock. For precise timing, use the UTC Time in the data section to the left of the countdown clock.
Scoring Information
Scores will be kept for individuals and teams. Only work units issued AFTER 23 September 2011 18:00 UTC and received BEFORE 06 October 2011 18:00 UTC will be considered for credit. We will use the "prime score" method which is based on the n value (k*b^n-1) to score the challenge. The only difference is that the primary and double checker of a WU will receive the same score.
Therefore, each completed WU will earn a unique score based on its n value. The higher the n, the higher the score. This is different than BOINC cobblestones! A quorum of 2 is NOT needed to award Challenge score. Therefore, each returned result will earn a Challenge score. Please note that if the result is eventually declared invalid, the score will be removed.
For details on how the score is calculated, please see this thread.
Stats will be available on the front page next to the clock within 30 minutes after the start...but don't expect any results for several days due to the length of the Woodall (LLR) tasks.
What to expect at Challenge start
The server always gets hit hard at the beginning of the Challenge. However, Woodall (LLR) tasks are quite long so we don't expect a heavy load. Nevertheless, a few hours before the start (23 September 2011 18:00 UTC) "max cache" will be dropped. Additionally, "max to send" will be dropped. Anyone attempting to request more will be met with "max cache" messages.
We'll raise the front page buffer before the start of the Challenge. These settings will be adjusted as necessary. Afterwards, as conditions allow, we'll raise "max cache". We'll continue to increase "max cache" when the server can handle it.
This method allows the greatest opportunity for the most clients to get work. Even if it's just 1 task for the first few minutes, at least the client is crunching. Past Challenges have shown that clients have an excellent chance to reach "max cache" before their first task is complete. We expect the same this time.
Strategies for starting the Challenge
Depending on a variety of factors, different strategies work for different users. Here are just a few to consider:
- large farm, user can be present at start
-Set Computer is connected to the Internet about every to 0 days
-Set Maintain enough work for an additional to 0 days
-Change PrimeGrid preferences to a fast WU project such as SGS (LLR)
-At Challenge start, update PrimeGrid preferences and only select the Woodall (LLR) project
-At worse, you'll only be 1 SGS (LLR) WU late on each core starting the Challenge.
-After all machines have work, increase Maintain enough work for an additional
- large farm, user NOT able to be present at start
-Same connection settings as above
-At earliest access to hosts after start, switch to the Woodall (LLR) project
- a few computers, user can be present at start
-Change PrimeGrid preferences and only select the Woodall (LLR) project
-Set computers to "No New Tasks" for PrimeGrid
-At Challenge Start, update computers to "Allow New Tasks"
- a few computers, user NOT able to be present at start
-same settings as "large farm, user NOT able to be present at start"
NOTE: This presumes you have all other BOINC projects suspended.
Best of Luck to everyone!
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Hhhmm. Looks like the vermin are lining up for a beefy snack.
Suggest we go Dutch.
I suggest a Dutch Power Cow stampede that will trample any vermin down there ^^ ;)
@John: Thnx for the detailed info on the Challenge :D
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Member of the Dutch Power Cows
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Hhhmm. Looks like the vermin are lining up for a beefy snack.
Suggest we go Dutch.
I suggest a Dutch Power Cow stampede that will trample any vermin down there ^^ ;)
@John: Thnx for the detailed info on the Challenge :D
A stampede of cows - is that like a maze for rats :)
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@AggieThePew
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Horde .... Herd ....
Horde .... Herd ....
Herd .... Horde ....
Herd .... Horde ....
Horde .... Horde ....
Herd ... Herd ....
Let's get ready to RUMBLE
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There's someone in our head but it's not us. |
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We will see if the Cows eats the rat or the other way round ;)
I for one have installed some xtra traps :)
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Currently there are no Woodall WUs available for me to test my system with. Are you guys just hording them for the competition, or is this an actual shortage that might occur during the competition. This is my first competition, so sorry if the question seems stupid.
On a side note, I usually seem get an abnormally amount of tasks from PPS Sieve. Is this normal?
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We will see if the Cows eats the rat or the other way round ;)
I for one have installed some xtra traps :)
Was just wondering, did those traps come from Amazon and are they still in the cloud :)
A cow setting a trap reminds me... never look a gift bovine in the mouth cause you might not ever look away :) |
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The server always gets hit hard at the beginning of the Challenge. However, Woodall (LLR) tasks are quite long so we don't expect a heavy load. Nevertheless, a few hours before the start (23 September 2011 18:00 UTC) "max cache" will be dropped. Additionally, "max to send" will be dropped. Anyone attempting to request more will be met with "max cache" messages.
We'll raise the front page buffer before the start of the Challenge. These settings will be adjusted as necessary. Afterwards, as conditions allow, we'll raise "max cache". We'll continue to increase "max cache" when the server can handle it.
This method allows the greatest opportunity for the most clients to get work. Even if it's just 1 task for the first few minutes, at least the client is crunching. Past Challenges have shown that clients have an excellent chance to reach "max cache" before their first task is complete. We expect the same this time.
I dare to remind that today systems are mostly(?) multiple core. As the Dog Days of Summer showed that could bring havoc on workload. I understand, that server-side boinc doesn't address that obstacle, probably. But that clearly isn't our problem, you know. We just donate cycles. Shortly, "max cache" -- how many?
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I'm counting for science,
Points just make me sick. |
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VatoVolunteer tester
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Each WU for this challenge will take approx a day on a fast machine, much longer on slower machines. The server will be able to keep up with this easily - it's the short WUs that cause the trouble. I plan to run with approx 0.5 days cache, but only for paranoia.
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We will see if the Cows eats the rat or the other way round ;)
I for one have installed some xtra traps :)
Was just wondering, did those traps come from Amazon and are they still in the cloud :)
A cow setting a trap reminds me... never look a gift bovine in the mouth cause you might not ever look away :)
no, just a honest server capture at work its a testing rig with nothing to test ;)) |
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We will see if the Cows eats the rat or the other way round ;)
I for one have installed some xtra traps :)
Was just wondering, did those traps come from Amazon and are they still in the cloud :)
A cow setting a trap reminds me... never look a gift bovine in the mouth cause you might not ever look away :)
no, just a honest server capture at work its a testing rig with nothing to test ;))
lol was just kidding... we vermin are experts at avoiding traps just to find ourselves in the fire :) |
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Is it OK to run CUDA WUs at the same time?
To participate in the Challenge, please select only the Woodall Prime Search (LLR) project in your PrimeGrid preferences section |
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JohnHonorary cruncher
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Is it OK to run CUDA WUs at the same time?
Yes, you should be able to use your GPU to do other work at the same time.
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From my experience the PPS Sieve requires more CPU time than the Cullen/Woodall sieve. So you might prefer to switch to the Cullen/Woodall sieve while the Challenge.
Is it OK to run CUDA WUs at the same time?
To participate in the Challenge, please select only the Woodall Prime Search (LLR) project in your PrimeGrid preferences section
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@ John
I have Seventeen or Bust ( SoB ) 8 times, ( 275 hours are ready ) ( 65,158 % ) to give back : 2011/10 / 08 in one Computer, when ready in 5 days.
and 20 times 321 ( LLR ) ready ( 20 % ) in an other Computer.
PPS ( Sieve ) in background.
I can stop and later go on ? Then it`s a time out. if it remains in limbo?
PPS can continue to run in this challenge ??
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please note :
Yesterday, I have done new coolant in all Computer !!! (X-tra for this Equinox challenge )
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I might be wrong, but I believe you cannot get new tasks if you have suspended work. |
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Usucapio Libertatis
However, it works, if "all tasks run", new demand, enough cache; then come new tasks. If all tasks to send is done, then stop the old tasks again.
But you must have Cache under 4 days. Over 4 days is without function ( Server - Settings of PG)
This depends on each of the members-storage capacity, depending on size
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Usucapio Libertatis
However, it works, if "all tasks run", new demand, enough cache; then come new tasks. If all tasks to send is done, then stop the old tasks again.
But you must have Cache under 4 days. Over 4 days is without function ( Server - Settings of PG)
This depends on each of the members-storage capacity, depending on size
The SoBs are really too far away from completion so you will have to babysit that computer for a little while until you get sufficient WUs to suspend the SoBs.
But you do have options for the other computer but these decrease the longer you wait.
This is a 13 day (312 hr) challenge on really long WUs and you will have some WUs that will not be finished on time. So you could start late for the computer with the 321 LLRs and still do the same number of challenge WUs.
If your Woodall's take about 65 hrs per core (from preferences: Recent average CPU time: 65:25:25). Thus, the average says that a host will only get 4 WUs completed per core on time leaving 50 hours per core available. If it is 32 hrs then you have 24 hrs per core available. You need to do that with your times if you don't have any Woodall's then perhaps doubling the 321 LLR times might be close enough (average is about 24 hrs). Obviously WUs that take exactly 24, 26, 39, 52, 78, 104 or 156 hrs for the challenge will not give you any spare time.
If you have i7's with turboboost enabled then use it! You probably can save an hour or so on the 321 LLRs. One way to do this is as the 321 LLR's finish, just don't allow any more new WUs to start. There are real downsides to this in terms of credit and risk of invalid WUs so I would do that only if the challenge is more important that those.
Also if you have an i7 with hyperthreading enabled, you might get better performance by allowing boinc to have all cores (or turning it off) and not do any GPU work from now to the end of the challenge. Again depends on what is your priority and what better means to you in the context of this challenge. |
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JohnHonorary cruncher
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I can stop and later go on ? Then it`s a time out. if it remains in limbo?
Deadline for SoB is 40 days and for 321 is 10 days. The Challenge is 13 days so you might still have time to return the SoB tasks before their deadlines. However, your 321 tasks will definitely expire, but it does not mean you won't still receive credit for them.
For both of these projects, the purge time is 30 days after validated. If your results are returned before the WU is purged (and your results match), then you'll still receive credit. This is not an ideal solution, but at least you'll receive credit for the work you completed.
PPS (Sieve) can continue to run in this challenge ??
Yes.
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Michael GoetzVolunteer moderator
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With regards to hyperthreading and LLR challenges, it's probably better to turn HT off, at least based upon my limited experience with it.
You'll get the same number of total WUs completed, but each WU will complete in half the time. At the end of the challenge, this may let you get 4 more WUs completed by the deadline than if you had HT turned on. Whether this happens or not depends on the exact timings and is very difficult to predict.
For general crunching, having HT turned on will likely yield more credit, even with LLRs, but with a challenge, you just may get more points with HT turned off. Especially with such long WUs, getting one extra WU per core completed could be a substantial percentage increase in challenge points.
For those not familiar with this, here's the explanation:
LLR benefits very little from Hyperthreading, so with HT turned on, you run twice as many WUs, but each WU takes twice as long to complete. The result is that you get the same number of WUs done whether HT is on or off.
Consider this example: If you use a core i7 with 4 cores, and you have a WU that takes 1 hour with HT turned off, it will take 2 hours with HT turned on.
Now assume you have a challenge that lasts 1.5 hours.
If you have HT turned off, you will run 4 WUs that will complete after 1 hour. A second set of 4 WUs won't complete before the challenge ends. You get challenge points for 4 WUs.
If you have HT turned on, you're running 8 WUs, and all of them complete after two hours. You get zero challenge points because you completed none of the WUs before the challenge ended.
Even though, in both scenarios, you complete 8 WUs in 2 hours, you get more challenge points with HT turned off because shorter-running WUs are more likely to complete before the challenge ends. Running a larger quantity of shorter running WUs is advantageous in the challenge.
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My lucky number is 75898524288+1 |
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Michael Goetz
hhey, thats good to know, here I learn it,
special thanks.
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I can stop and later go on ? Then it`s a time out. if it remains in limbo?
Deadline for SoB is 40 days and for 321 is 10 days. The Challenge is 13 days so you might still have time to return the SoB tasks before their deadlines. However, your 321 tasks will definitely expire, but it does not mean you won't still receive credit for them.
For both of these projects, the purge time is 30 days after validated. If your results are returned before the WU is purged (and your results match), then you'll still receive credit. This is not an ideal solution, but at least you'll receive credit for the work you completed.
PPS (Sieve) can continue to run in this challenge ??
Yes.
I have 71 % in SoBs, I think, i cant do it in one Day with Turbo Boost and 2 tasks of SOB, but I do, what I can !
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With WUs as long as Woodalls, some may consider even more "babysitting."
Imagine you have 90h left and your computer takes 60h per WU. You can crunch 1.5 WUs per core in the time left, but that won't help.
But with a little manual intervention, there is a way to get more.
On a dual core you could finish 2 WUs and bring 2 more to 50% each. You get challenge points for 2 WUs. Now, 50% x 2 = 100%. Let's make use of that.
First run 2 WUs to 50% (we are at 30h now)
Suspend one of them. The core crunching it will start a new one.
After another 30h, this new WU is at 50%, the one you didn't suspend is finished. (total of 60h now)
Now, UNsuspend the one that has been interrupted at 50%
Now both cores have WUs that are at 50% (which will finish in time) AND you have another one that is already finished.
End result: Not 2x100% plus 2x50%, but 3x100%
NOTE: This is not my idea, but I forgot who mentioned it first.
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There are only 10 kinds of people - those who understand binary and those who don't
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards |
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JohnHonorary cruncher
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24 hours to go!!!
Please once again review the "Welcome" post as well as the "How to Join" post so you can be informed and make any last minute adjustments that are necessary.
A Cautionary Reminder
ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your computer. WU's will take ~60-70 hours on fast/newer computers and 100+ hours on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. :)
Restricted airflow is one of the primary reasons for overheating. Take the time to monitor the fans and review the dust buildup. Please, please, please make sure your machines are up to the task. An hour before the Challenge, we begin to monitor the Meebo chat room at the bottom of the forum page. If at any time PrimeGrid becomes unresponsive, you can still access the Meebo chat room externally here: http://www.meebo.com/room/primegrid/
Before the start, the Subproject stats on the Server Status page will be disabled as will the 24 hour stats on the bottom of the front page. Also, the Top Primes Finder page will be disabled. This is all done to free up as much resources as possible to allow the server to send and receive work. With these long WU's, we don't expect any problems and should have all pages live again shortly after the start.
What to expect at Challenge start
The server always gets hit hard at the beginning of the Challenge. However, Woodall (LLR) tasks are quite long so we don't expect a heavy load. Nevertheless, a few hours before the start (23 September 2011 18:00 UTC) "max cache" will be dropped. Additionally, "max to send" will be dropped. Anyone attempting to request more will be met with "max cache" messages.
We'll raise the front page buffer before the start of the Challenge. These settings will be adjusted as necessary. Afterwards, as conditions allow, we'll raise "max cache". We'll continue to increase "max cache" when the server can handle it.
This method allows the greatest opportunity for the most clients to get work. Even if it's just 1 task for the first few minutes, at least the client is crunching. Past Challenges have shown that clients have an excellent chance to reach "max cache" before their first task is complete. We expect the same this time.
Stats will be available on the front page next to the clock within 30 minutes after the start.
BOINCstats provides hourly updates of Project Challenges. There you can view user and team credit and ranking trends.
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards
Hoping I read your post correctly, only wu's that are sent (received by you) after the challenge starts and returned before the challenge ends will count. So your current work will be great for your normal credit but will not count towards the challenge points.
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@AggieThePew
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards
It has to be downloaded, crunched and returned during the challenge to count for challenge points. So the one you are doing now won't count for the challenge. It might be a lovely prime tho'.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards
It has to be downloaded, crunched and returned during the challenge to count for challenge points. So the one you are doing now won't count for the challenge. It might be a lovely prime tho'.
I know thses are the rules but it seems unfair considering the solstice was actually at 09:04 UTC, so the challenge starts nearly 9 hours late!!
It also starts at an inconvienient 04:00 AM (East Aus Std Time-- UTC+10).
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Member team AUSTRALIA
My lucky number is 9291*2^1085585+1 |
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The cows are ready to be unleashed, got some vermin to crush, watch out for the stampede ;)
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The cows are ready to be unleashed, got some vermin to crush, watch out for the stampede ;)
It must be sad to only be unleashed every 2 or 3 months :) just kidding, bring it on my cow friends the horde loves a good challenge!
ps are you really cows or water buffalo? HA
(disclaimer: all statements are made in jest or at least mostly)
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@AggieThePew
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Here they are in training Rick:
http://www.scenicreflections.com/files/cow_and_dolphin_Wallpaper_cv4e3.jpg .
Looking forward to an enjoyable challenge. Good luck to all not least our bovine friends.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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Good luck to The Dawgz of Primesearchteam and Vermin Horde of Aggie the Pew ^^ :)
@Tim:Just to compare some stuff..
Big rat http://macsystems.com/Oct20-2008.jpg
VS Big Cow http://img.dailymail.co.uk/i/pix/2008/05_03/bigcowBNS_468x341.jpg
I hope we race this time as close as last challenge (just a few hundred points if I am correct)!!
Anyhows... gonna prep some cows ^^ :D
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Member of the Dutch Power Cows
My Stats |
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Good luck to The Dawgz of Primesearchteam and Vermin Horde of Aggie the Pew ^^ :)
@Tim:Just to compare some stuff..
Big rat http://macsystems.com/Oct20-2008.jpg
VS Big Cow http://img.dailymail.co.uk/i/pix/2008/05_03/bigcowBNS_468x341.jpg
I hope we race this time as close as last challenge (just a few hundred points if I am correct)!!
Anyhows... gonna prep some cows ^^ :D
Good lord I'd forgotten we had count dratula on call :)
Oh, and I see you've already unleashed the beast!
Good luck to you and the Dawgs as well and may the best breed win
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@AggieThePew
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With WUs as long as Woodalls, some may consider even more "babysitting."
...
NOTE: This is not my idea, but I forgot who mentioned it first.
- I think that might have been me...
I called it "juggling" - but i think "babysitting" is far more descriptive! :-)
I see that my original post (below) was almost exactly a year ago.. how time flies..
http://www.primegrid.com/forum_thread.php?id=2668&nowrap=true#26565
In any case - My boxes are all dusted off & fired up - ready for the 'babysitting' to begin!
Good Luck to All!
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Will the 4000 WU's available be enough to feed all the hosts in less than 15 minutes?
Good luck.
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676754^262144+1 is prime |
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Looks like they are feeding the queue up now.
Ok my cow friends, last chance to just go ahead and forfeit :)
Of course I know you won't cause that would be no fun at all. |
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Michael GoetzVolunteer moderator
Project administrator
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards
It has to be downloaded, crunched and returned during the challenge to count for challenge points. So the one you are doing now won't count for the challenge. It might be a lovely prime tho'.
I know thses are the rules but it seems unfair considering the solstice was actually at 09:04 UTC, so the challenge starts nearly 9 hours late!!
It also starts at an inconvienient 04:00 AM (East Aus Std Time-- UTC+10).
If you can suggest a better, more fair, system, I'm sure the admins will always consider ways to improve the challenges.
No matter what time the challenge starts, it's going to be awfully inconvenient somewhere in the world. While I understand completely how a 4 AM start is difficult to manage, even where I am, with a 2 PM start, it's even more inconvenient for people who are at work and can't start their crunchers going until they get home.
Being able to download the tests earlier would mitigate that unfairness somewhat, but it would open up the whole process to widespread cheating. Significant changes to the process would need to occur to mitigate the potential for abuse.
Perhaps a rolling start/finish could be used, whereby any computer could start anywhere within a 24 hour period and would have to finish by the same time of day on the finish day. There are numerous problems with that approach, not the least of which is that right off the top I can think of one easy way to cheat if you have more than one computer.
For those who are not available at the start of the challenge, it IS possible, in theory, to have a batch file start up BOINC automatically, thus enabling the computer to start the challenge on time while unattended. I've never tried it, but I can't think of any obvious reason why it wouldn't work.
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My lucky number is 75898524288+1 |
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Keeps on saying no work units available :-(
9/23/2011 2:06:02 PM | PrimeGrid | Message from server: No work available for the applications you have selected. Please check your project preferences on the web site.
And for some reason it is only requesting GPU tasks:
9/23/2011 2:07:10 PM | PrimeGrid | Requesting new tasks for NVIDIA GPU
9/23/2011 2:07:13 PM | PrimeGrid | Scheduler request completed: got 0 new tasks
9/23/2011 2:07:13 PM | PrimeGrid | No work sent
9/23/2011 2:07:13 PM | PrimeGrid | Message from server: No work available for the applications you have selected. Please check your project preferences on the web site. |
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The stampede has begun.
Good luck to all, have a nice challenge.
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yank
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Posts: 111
ID: 8367
Credit: 11,474,819,218
RAC: 0
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Great job Prime Grid. Forty-four total work units in less than 3 minutes on 9 machines.
US Navy prime Grid Team
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Ken_g6Volunteer developer
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Hm, one issue: I notice the report deadline is before the end of the race. The problem is that I have a machine that may only get one WU done in the whole race! If it's reported before the end of the race, even if it's the 3rd result reported for that WU, will it count for the race?
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JohnHonorary cruncher
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Joined: 21 Feb 06
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Credit: 2,681,934
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Hm, one issue: I notice the report deadline is before the end of the race. The problem is that I have a machine that may only get one WU done in the whole race! If it's reported before the end of the race, even if it's the 3rd result reported for that WU, will it count for the race?
Yes, as long as it is valid.
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Good luck to all ... especially the Horde and the Herd !!
Unfortunately due to some hardware issues TheDawgz are going to be sitting this one out .. but we will be watching!
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There's someone in our head but it's not us. |
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Good luck to all ... especially the Horde and the Herd !!
Unfortunately due to some hardware issues TheDawgz are going to be sitting this one out .. but we will be watching!
ah too bad and sorry for the issues. hope you get them resolved quickly!
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@AggieThePew
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2 hours in and I still can't get any work |
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no problems here. Got 4 machines up and running.
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Is the leader's computer really good enough to do these Woodalls in under 5 seconds? |
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I'm seriously wondering what kind of machine do you have to have to finish these in under 2 hours and get 112000 points for it.
I'd sure love to have that Monster :)
http://www.primegrid.com/challenge/2011_7/top_users.html
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Volodymyr from Ukraine
distributed.org.ua |
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It is an AMD E-350 for sure... ^^ |
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JohnHonorary cruncher
Send message
Joined: 21 Feb 06
Posts: 2875
ID: 2449
Credit: 2,681,934
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Is the leader's computer really good enough to do these Woodalls in under 5 seconds?
These are obviously "erroneous" tasks. Please note the underlined section below:
Scoring Information
Scores will be kept for individuals and teams. Only work units issued AFTER 23 Sep 2011 18:00 UTC and received BEFORE 06 Oct 2011 18:00 UTC will be considered for credit. We will use the "prime score" method which is based on the n value (k*b^n-1) to score the challenge. The only difference is that the primary and double checker of a WU will receive the same score.
Therefore, each completed WU will earn a unique score based on its n value. The higher the n, the higher the score. This is different than BOINC cobblestones! A quorum of 2 is NOT needed to award Challenge score - i.e. no double checker. Therefore, each returned result will earn a Challenge score. Please note that if the result is eventually declared invalid, the score will be removed.
For details on how the score is calculated, please see this thread.
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Hey Dudes
I wish you a nice Race
Greez [ESL Brigade] Solaflex |
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I'm seriously wondering what kind of machine do you have to have to finish these in under 2 hours and get 112000 points for it.
I'd sure love to have that Monster :)
http://www.primegrid.com/challenge/2011_7/top_users.html
Maybe its Waterspout computing? ;-D
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hi ,
this might be a silly question,
I have began crunching for this challenge before it begins.
my wu will be done after the begening of this challenge, so would it count or not?
should i download and crunch when the challenge timer reaches zero or its ok like that ?
best regards
It has to be downloaded, crunched and returned during the challenge to count for challenge points. So the one you are doing now won't count for the challenge. It might be a lovely prime tho'.
I know thses are the rules but it seems unfair considering the solstice was actually at 09:04 UTC, so the challenge starts nearly 9 hours late!!
It also starts at an inconvienient 04:00 AM (East Aus Std Time-- UTC+10).
If you can suggest a better, more fair, system, I'm sure the admins will always consider ways to improve the challenges.
No matter what time the challenge starts, it's going to be awfully inconvenient somewhere in the world. While I understand completely how a 4 AM start is difficult to manage, even where I am, with a 2 PM start, it's even more inconvenient for people who are at work and can't start their crunchers going until they get home.
Being able to download the tests earlier would mitigate that unfairness somewhat, but it would open up the whole process to widespread cheating. Significant changes to the process would need to occur to mitigate the potential for abuse.
Perhaps a rolling start/finish could be used, whereby any computer could start anywhere within a 24 hour period and would have to finish by the same time of day on the finish day. There are numerous problems with that approach, not the least of which is that right off the top I can think of one easy way to cheat if you have more than one computer.
For those who are not available at the start of the challenge, it IS possible, in theory, to have a batch file start up BOINC automatically, thus enabling the computer to start the challenge on time while unattended. I've never tried it, but I can't think of any obvious reason why it wouldn't work.
Hi all,
there are several possibilitys to 'wake-up' your computer at a specific time.
some OS version have this build in already. (e.g. out of a 'sleep' mode')
- your BIOS may have a feature like 'wake-up on LAN' or 'wake-up at time'
However you must assure, that if your system restart's or resumes work, BOINC manager will start automatically (very easy task on some OS) and the BOINC task manager is setup to receive the intended task's. Not to mention that at this time your 'tasks' should be at 0 (nil,zero)
Best regards .. Parabol
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I'm seriously wondering what kind of machine do you have to have to finish these in under 2 hours and get 112000 points for it.
I'd sure love to have that Monster :)
http://www.primegrid.com/challenge/2011_7/top_users.html
Maybe its Waterspout computing? ;-D
It was designed in 2201 but by mistake someone got in 2011.
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"I always win law prmanently" |
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Where are the wu's??????
No tasks available????
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... Subproject stats ... 24 hour stats ... Top Primes Finder page will be disabled ... should have all pages live again shortly after the start.
No rush ... just a reminder ;o)
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There's someone in our head but it's not us. |
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What a challenge! 12 hours in and the herd and horde have identical scores.
Edge of seat stuff.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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What a challenge! 12 hours in and the herd and horde have identical scores.
Edge of seat stuff.
Nail- and tongue-biting experience.. The crowd goes wild!!
I think the next 12 hours will be as exciting!! Keep in your seats ^^ :)
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Member of the Dutch Power Cows
My Stats |
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I seriously think the computer Gods might not like me. Wasn't able to get online until 12 hrs after beginning, but at least I'm here....
Moon* going to give it as much as I can...
Onward and upward to the stars!
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I seriously think the computer Gods might not like me. Wasn't able to get online until 12 hrs after beginning, but at least I'm here....
Moon* going to give it as much as I can...
Onward and upward to the stars!
Ouch and I thought the 5minutes it took to change my account prefs to WOO was painfully slow - but I got WUs right after that. |
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Just two users at this point (13+ hours in) with challenge points. I looked at their task lists and they are all obviously invalid units, so those points will disappear. Both machines have other tasks that error-ed out. Bad overclock, at least.
It was under 5 minutes this morning for my three queues to fill... well done admins!
Crunch crunch crunch...
--Gary
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"I am he as you are he as you are me and we are all together"
87*2^3496188+1 is prime! (1052460 digits)
4 is not prime! (1 digit) |
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Just two users at this point (13+ hours in) with challenge points...
--Gary
I reckon they are something to do with CERN.
302669800
213379682
23 Sep 2011 | 19:09:30 UTC
23 Sep 2011 | 19:12:37 UTC
Timed out - no response
0.00
0.00
---
Woodall (LLR) v6.09
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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RytisVolunteer moderator
Project administrator
Send message
Joined: 22 Jun 05
Posts: 2653
ID: 1
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RAC: 109,713
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We are having some trouble generating stats. I have identified the problem and will try to fix it with the smallest possible impact on the speed of the server. However, since I have to rebuild the indexes of our largest table, it will take some time.
[update] It was faster than I expected; the stats are now back online.
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Not too soon?
Last update: 2011 09 24 12:30:22
Rank Name Team Score
1 Vladimir Lilitko Russia 140201.17
2 [SG]Gerhard Sattler SETI.Germany 56828.55
3 (_Mystic_) Ukraine 56652.92
4 SiKTheGreatOne SETI.USA 28309.22
5 Shiro Osawa Team 2ch 27817.77
6 Sylvia BOINC@Heidelberg 27500.64
:P
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I was on holiday in Cornwall and started a bit late. Can I have a few more hours to finish?
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Not too soon?
Last update: 2011 09 24 12:30:22
Rank Name Team Score
1 Vladimir Lilitko Russia 140201.17
2 [SG]Gerhard Sattler SETI.Germany 56828.55
3 (_Mystic_) Ukraine 56652.92
4 SiKTheGreatOne SETI.USA 28309.22
5 Shiro Osawa Team 2ch 27817.77
6 Sylvia BOINC@Heidelberg 27500.64
:P
Yes but the stats are still not right as No. 1 is still only producing errors so points won't count and the short runtimes the others have returned may not be valid either.
Will need to be checked by project admin to see if valid.
19 hours into challenge
Conan
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I was on holiday in Cornwall and started a bit late. Can I have a few more hours to finish?
I doubt that you will get your wish there Ice, I was 4 hours late due to me not wanting to get up at 4 AM here in Oz to start the challenge and I wont get those 4 hours added on either.
I have now switched most of my cores to the challenge so I hope to not only do well in the challenge but get a Silver badge at the same time.
Conan
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I was on holiday in Cornwall and started a bit late. Can I have a few more hours to finish?
If you join Aggie The Pew we'll see what we can do.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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I was on holiday in Cornwall and started a bit late. Can I have a few more hours to finish?
If you join Aggie The Pew we'll see what we can do.
I'm not sure if you can help. I recall drinking Black Rat cider in Cornwall, do you have the white version? (Black Rat is a bit too cloudy for my liking.) And will it make my laptop lap faster?
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I doubt that you will get your wish there Ice, I was 4 hours late due to me not wanting to get up at 4 AM here in Oz ...
Hi Conan. I don't like getting up at 4am myself, but after a few of the Black Rats you just can't help it. Hick. Am I winning yet?
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I'm not sure if you can help. I recall drinking Black Rat cider in Cornwall, do you have the white version? (Black Rat is a bit too cloudy for my liking.) And will it make my laptop lap faster?
It will certainly seem like the time passes faster and Aggie was a white rat.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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VatoVolunteer tester
Send message
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Posts: 841
ID: 18447
Credit: 646,650,079
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Last update: 2011 09 24 12:30:22
Rank Name Team Score
1 Vladimir Lilitko Russia 140201.17
Yes but the stats are still not right as No. 1 is still only producing errors so points won't count and the short runtimes the others have returned may not be valid either.
Will need to be checked by project admin to see if valid.
This will happen automatically when they are declared invalid - no need for admin involvement.
However, if there end up being a lot of these spread around, it could make predicting the outcome a bit harder!
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Black rat is definitively a wrecking ball of an Imperial Stout. It may have an IBU of 50, not to bad. Whereas the white rat brew is only 30 IBU but is easier on the buds because the use of more tail and squeak in their brewing. American (OMG) store/lab/pet rat has an insipid 30; "another Budding Rat please," all day with a US pet rat without so much of a beer buzz.
Sun Badger..... and no I do not brew well at all . Brooding yes, very well sir, but not brewing.
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Last update: 2011 09 24 15:00:17
Rank Name Team Score
1 Sebastian* Sicituradastra. 2631697.45
2 Vladimir Lilitko Russia 140201.17
3 [SG]Gerhard Sattler SETI.Germany 56828.55
4 (_Mystic_) Ukraine 56652.92
5 SiKTheGreatOne SETI.USA 28309.22
6 Shiro Osawa Team 2ch 27817.77
7 Sylvia BOINC@Heidelberg 27500.64
Last update: 2011 09 24 15:30:19
Rank Name Score
1 Sicituradastra. 6465659.22
2 Russia 140201.17
3 SETI.Germany 56828.55
4 Ukraine 56652.92
5 SETI.USA 28309.22
6 Team 2ch 27817.77
7 BOINC@Heidelberg 27500.64
It seams lot's of errors :P
21h |
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Too many errors, the result of too much overclocking? |
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JohnHonorary cruncher
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Too many errors, the result of too much overclocking?
Too much overclocking or not enough cooling could possibly be the reason for these errors. While most of these results are likely errors, it would not be unusual for the first valid ones to start coming in...the fastest of these being around 23 hours.
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John thank you for your reply. My WPS started out at 500 hrs yesterday, 5 hours late. A day later and I am down to 75 or so. Why are the times to run so different than the actual time running?
Thank you for your time. |
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Is there no way for you to ban some computers. This Sebastian guy especially is ****ing up all the stats, with that one computer that keeps returning faulty WU's every few seconds.
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JohnHonorary cruncher
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Too many errors, the result of too much overclocking?
Too much overclocking or not enough cooling could possibly be the reason for these errors. While most of these results are likely errors, it would not be unusual for the first valid ones to start coming in...the fastest of these being around 23 hours.
Of course, some people may be running one of these: Liquid Nitrogen Overclocking
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pschoeferVolunteer developer
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Too many errors, the result of too much overclocking?
Too much overclocking or not enough cooling could possibly be the reason for these errors.
I don't think so. Most of them error out immediately with almost no CPU time, so there's no time for the CPU to get hot at all.
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Michael GoetzVolunteer moderator
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Too many errors, the result of too much overclocking?
Too much overclocking or not enough cooling could possibly be the reason for these errors.
I don't think so. Most of them error out immediately with almost no CPU time, so there's no time for the CPU to get hot at all.
There's almost an infinite numbers of causes for this. Any type of problem with the BOINC installation, such as incorrect permissioning or not having the 32 bit libraries installed on a 64 bit linux (that one is VERY common, especially when it's a new Linux install just for running BOINC) would cause the WUs to error out instantly.
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My lucky number is 75898524288+1 |
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RytisVolunteer moderator
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We are now able to catch most of these trashed-but-success tasks earlier in the queue, so less waste scores on the stats.
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We are now able to catch most of these trashed-but-success tasks earlier in the queue, so less waste scores on the stats.
That would be great! thanx!
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I also have the error, with WUs just get finished within 5 seconds. I got an AMD APU E350 board, just installed win7, drivers and then Boinc. Is the precessor to new? Never had trouble on any AMD-CPU running PG.
anyone has a idea how to solv the problem?
I just let the PC run for about half an hour. Never expectet any problems so i left. Sorry for messing up the stats, was really not my intention. |
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I also have the error, with WUs just get finished within 5 seconds.
Do You really see the status of funished tasks as 'Calculation Error', not as 'Completed'? Very strange! Boinc stderr output of such tasks reports NO exit code indicating WU finish with NO error.
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I got completet. Never got that Computation error message. It is a stock E-350. I guess it's the processor. Anyone else running a E-350? |
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Sorry, no idea to help You.
Probably we have new (and specifically related E-350 architecture) bug in calculation module.
Try to call for developers, maybe they can solve Your problem.
P.S. Try to stop boinc, flush project folder, start boinc and re-download all files related WOO LLR subproject. |
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First Valid from 3Rni - Polish National Team
Yes Yes Yes
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did as you told zlodeck. even did a bios update. Same problem again. Collatz doesn't have that prob, also minecraft is running fine. No crashes, and that on java...
How can i call a developer? |
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mackerelVolunteer tester
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Out of interest, what would get these WUs done in 24 hours? I was estimating a sandy bridge overclocked to around 5 GHz might do it, but does anyone have a better answer? |
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Little Boy Blue,
Come blow your horn,
The Horde's in the standings,
The Herd is forlorn!
Please don't beat TheDawgz - we like Herd and Horde equally
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There's someone in our head but it's not us. |
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SB2600@4.4 ghz
http://www.primegrid.com/results.php?hostid=220186
enjoy m8 |
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I guess a i7 2600 @4Ghz with no HT could do the trick.
My i7 2600 with HT @3.4 does it in about 53 hours, so with a 15% overclock you should come near the 24 hours.
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Little Boy Blue,
Come blow your horn,
The Horde's in the standings,
The Herd is forlorn!
Please don't beat TheDawgz - we like Herd and Horde equally
The horde has taken the lead, but one rat doesn't beat the herd ;)
Edit: Too bad, we just lost one of our bigger cows. But the herd is going strong.
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If you have i7's with turboboost enabled then use it!
How do I enable my i7 turboboost?
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Hello everyone!!! I really need your help.
I am participating in this challenge and also crunching WUs in PPS sieve.
But I have a problem. GPU usage jumps from 30 to 99% and my Primegrid RAC is falling down. Before challenge I have 99% GPU usage all the time (even when crunching other CPU Primegrid WUs).
SOS!!!
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pschoeferVolunteer developer
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Wow, those Sandy Bridges are really fast. My i7 980X @ 4 GHz (first host to return a valid WU in last years Calendula challenge) needs another 5 hours to complete its first set. And while I need to disable HTT for maximum throughput, SBs seem to be even more efficient with HTT enabled.
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SB2600@4.4 ghz
http://www.primegrid.com/results.php?hostid=220186
enjoy m8
Nice job, 3Rni! I'm just a tick behind you, got my first one reported in ~90,500 (i7 2600K).
--Gary
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"I am he as you are he as you are me and we are all together"
87*2^3496188+1 is prime! (1052460 digits)
4 is not prime! (1 digit) |
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I got completet. Never got that Computation error message. It is a stock E-350. I guess it's the processor. Anyone else running a E-350?
Yes Sebastian* it would appear that another user having the same trouble as you (Vladimir Lilitko) also is using an E-350 and all WU's are failing after 5 seconds or so.
Last update: 2011 09 24 15:00:17
Rank Name Team Score
1 Sebastian* Sicituradastra. 2631697.45
2 Vladimir Lilitko Russia 140201.17
3 [SG]Gerhard Sattler SETI.Germany 56828.55
4 (_Mystic_) Ukraine 56652.92
5 SiKTheGreatOne SETI.USA 28309.22
6 Shiro Osawa Team 2ch 27817.77
7 Sylvia BOINC@Heidelberg 27500.64
So maybe there is something in that connection.
I also run AMD and I am not having any trouble.
Conan
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If you have i7's with turboboost enabled then use it!
How do I enable my i7 turboboost?
As I understand it Turbo Boost will only work if you are not using all your processor cores at the same time. So if you had 2 jobs running on a Quad core then Turbo Boost can turn off the 2 cores not doing anything and boost the speed on the 2 that are.
AMD have a similar thing.
If all cores are working (especially if at 100%) then there will be no turbo boost.
It is done this way so that the Thermal Limit quoted for the CPU (say 125 Watts) stays at or under that 125 Watts.
If all cores were boosted (basically an over clock) then the Thermal Envelope would rise well above 125 Watts (or 65 W, 95 W whatever the chip is to run under).
Getting too hot is a major issue with Laptops, but can still affect Desktops.
For you Ice, you can get a Turbo Boost by Overclocking your CPU.
Conan
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L2BSend message
Joined: 14 Jan 11
Posts: 1
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Credit: 230,765,348
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I'm running Challenge WUs [Woodall(LLR)] on two computers. The newer has an i7 CPU @2.8GHz. On that machine the WU progress is about 1% per hour. Is that normal? It appears that the runtime to completion will be considerably longer than suggested in the "Welcome to....Challenge" messages.
Is there anything I can do to speed-up the process?
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I'm running AMD Phenom IIs. One is a x4 970 @ 4.25Ghz and my times are ~40 hours and my other is a x2 560 (not unlocked) running @ 4.1Ghz finishing in ~41 hours. Both a recently finished WU on the 970 and remaining time calculations on current WUs on both boxes, show this (using CPU times x2 right at 50% completion). Could up the 560 0.1Ghz (to 4.2Ghz) and up the 970 0.15Ghz (to 4.4Ghz), and run 100% load but I don't want to risk any errors.
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If you have i7's with turboboost enabled then use it!
How do I enable my i7 turboboost?
First educate yourself on what actually does turbo boost as it may not be what you think it is. It is a setting in the bios.
The advice was to use to to finish a few WUs ahead of time for the challenge. It will not help you doing the challenge until the you sacrifice your WUs to finish a WU or two that would not otherwise get done in time. |
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I'm running Challenge WUs [Woodall(LLR)] on two computers. The newer has an i7 CPU @2.8GHz. On that machine the WU progress is about 1% per hour. Is that normal? It appears that the runtime to completion will be considerably longer than suggested in the "Welcome to....Challenge" messages.
Is there anything I can do to speed-up the process?
If the GPUs are too important that you to waste 2 cores on it then probably not.
Probably about right times if you have hyperthreading enabled and all cores running (but you only seem to have 6). You will go faster without hyperthreading enabled but may be slower in the long term. However, finding the right combination in the middle of a challenge is probably not good idea. |
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This will be a long challenge but it seems the horde are first to the board. Let's hope the horde can outlast the herd :)
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@AggieThePew
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This will be a long challenge but it seems the horde are first to the board. Let's hope the horde can outlast the herd :)
Congratz by beating us to the board..
What was it again?.. Patience is a virtue.. or a diesel-engine needs to warm up properly?.. yeah anyways we have some on there right now.
ATM the Herd is 1.7K further along :D Reminds me of the last challenge.. come on Horde.. show us your rat-teeth ;)
(Scores at 06:00 UTC >> DPC: 110816 .. AtP: 109185)
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Member of the Dutch Power Cows
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For primes searched the Herd and the Horde
First the Rats then the Cows made the board
TheDawgz not competing
On scores one eye keeping
A new Woodall the final reward
TheDawgz promise that this is our first, last and only limerick - they are a lot harder to write than one would think!
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If you have i7's with turboboost enabled then use it!
How do I enable my i7 turboboost?
As I understand it Turbo Boost will only work if you are not using all your processor cores at the same time. So if you had 2 jobs running on a Quad core then Turbo Boost can turn off the 2 cores not doing anything and boost the speed on the 2 that are.
AMD have a similar thing.
If all cores are working (especially if at 100%) then there will be no turbo boost.
It is done this way so that the Thermal Limit quoted for the CPU (say 125 Watts) stays at or under that 125 Watts.
If all cores were boosted (basically an over clock) then the Thermal Envelope would rise well above 125 Watts (or 65 W, 95 W whatever the chip is to run under).
Getting too hot is a major issue with Laptops, but can still affect Desktops.
For you Ice, you can get a Turbo Boost by Overclocking your CPU.
Conan
Thanks Conan. I'm sure I overclocked my laptop when I first got it, but as with many things I kinda forgot where I did it, why, and what's it all about anyway. These are avatars I made when I first got my laptop;
 
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I'm running Challenge WUs [Woodall(LLR)] on two computers. The newer has an i7 CPU @2.8GHz. On that machine the WU progress is about 1% per hour. Is that normal? It appears that the runtime to completion will be considerably longer than suggested in the "Welcome to....Challenge" messages.
Is there anything I can do to speed-up the process?
If the GPUs are too important that you to waste 2 cores on it then probably not.
Probably about right times if you have hyperthreading enabled and all cores running (but you only seem to have 6). You will go faster without hyperthreading enabled but may be slower in the long term. However, finding the right combination in the middle of a challenge is probably not good idea.
For me turning off the GPUs may be a good option. I've had crashes on my older laptop and PC, because (I think) I am trying to do Woodall, Collatz and copying to a 3TB wifi networked HD all at once, as well as surfing the net. My newer i7 laptop is coping OK, but the older kit is definitely ify until I turn the GPU processing off.
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Something to ponder while waiting for your long WUs to crunch in this challenge.
Lots of new info and benchmarks on the new Bulldozer FX CPUs at http://lenzfire.com/2011/09/amd-bulldozer-fx-processors-benchmark-results-vs-core-i7-2600k-70406/. One interesting quote (with slide) is:
"The amazing power of AMD Bulldozer’s architecture can be seen here only. The new Bulldozer architecture enables ISAS, which Core i7 2600K lacks. AMD Bulldozer FX 8150 performs 56X times faster than Core i7 2600K in OCL Perf Mandelbrot. Thereby AMD Bulldozer with its FMA4 and XOP can accelerate next generation applications with complex mathematical calculations by 56 times more than Intel Core i7 2600K."
With the OFFICIAL (finally) release date set for Oct. 12, the long long wait is almost over. I'm hoping to fill my AM3+ socket ASAP (finances willing).
NeoMetal
[NeoClassical Influenced Progressive & Power Metal]
7911*2^692436+1 is prime!
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I see our good friends the cows have taken the lead even if only for a short time. We want to give you hope :)
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@AggieThePew
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I see our good friends the cows have taken the lead even if only for a short time. We want to give you hope :)
And we give/leave you heaps of dung. |
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I'm on a Phenom II X4 955 BE here, and it shows 24% progress for 11.5 hours of crunching... can that be right? |
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I'm on a Phenom II X4 955 BE here, and it shows 24% progress for 11.5 hours of crunching... can that be right?
My X4 945's (stock) show 70% for 40 hours and still 16 hours to go.
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Sounds about right then. Thanks |
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Michael GoetzVolunteer moderator
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I'm on a Phenom II X4 955 BE here, and it shows 24% progress for 11.5 hours of crunching... can that be right?
Not familiar with that CPU, but I'd say it's in the right ballpark. Generally the Phenom II's are roughly equivalent to a Core 2 CPU, and you're running about 70% faster than my Q6600. That seems about right.
For these workunits, 40 to 100 hours is where most CPUs should finish, with some very old machines taking a lot longer, and a very, very few coming in around the 24 hours mark. (Those machines would have brand new, very expensive CPUs with significant overclocking. They're probably all Intel right now, too, although AMD has some new silicon coming out soon.)
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My lucky number is 75898524288+1 |
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I see our good friends the cows have taken the lead even if only for a short time. We want to give you hope :)
And we give/leave you heaps of dung.
We are doomed guys: Merda taurorum animas conturbit.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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I see our good friends the cows have taken the lead even if only for a short time. We want to give you hope :)
And we give/leave you heaps of dung.
We are doomed guys: Merda taurorum animas conturbit.
We know we promised not to write another limerick ... but rat scat and cow patties .... hmmm
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There's someone in our head but it's not us. |
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"Non gradus anus rodentum" springs to mind.
I'd mightily enjoy another limerick.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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I'd mightily enjoy another limerick.
Well since Google translates
"Non gradus anus rodentum" as: "An old woman, not degrees of corrosives".
and
"Merda taurorum animas conturbit" (from your earlier post) as: "Disquiet the souls of the excrement of bulls".
TheDawgz will be damned to a diet of milk before we try to write limericks in Latin.
But we'll see what we can come up with for the Rat scat and Cow pies - no promises!
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There's someone in our head but it's not us. |
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It'd be very clever and very funny if you did.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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25-Sep-2011 22:33:26 [PrimeGrid] Sending scheduler request: Requested by project.
25-Sep-2011 22:33:26 [PrimeGrid] Not reporting or requesting tasks
25-Sep-2011 22:33:33 [PrimeGrid] Scheduler request completed
Big Brother watches you?
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I'm counting for science,
Points just make me sick. |
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Same here on several machines, but other projects (RNA, GPUGRID etc) also.
Can't wait until tomorrow to see where we stand on the battle with the rats...
Who will be on top?
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Same here on several machines, but other projects (RNA, GPUGRID etc) also.
Can't wait until tomorrow to see where we stand on the battle with the rats...
Who will be on top?
Oh don't worry about us. We'll keep gnawing away.
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Oh Bondage? Up Yours.
http://www.youtube.com/watch?v=ogypBUCb7DA
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Same here on several machines, but other projects (RNA, GPUGRID etc) also.
Can't wait until tomorrow to see where we stand on the battle with the rats...
Who will be on top?
Oh don't worry about us. We'll keep gnawing away.
Nah I am not worrying, more wondering how much our lead will be ;)
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Yeah I also want another limmerick ^^ :D
+kudo's for your first one :D
@Tim: I think your horde will... well.. bath in our dump.. while we are stampeding along ^^ :)
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Member of the Dutch Power Cows
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Horde beware! The herd just got a lost cow back and it's crunching with a vengeance! :P
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PrimeGrid Challenge Overall standings --- Last update: From Pi to Paddy (2016)
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the horde has stampeded the herd and they are running away with it right now. Nice job there my meals on wheels :) |
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Same here on several machines, but other projects (RNA, GPUGRID etc) also.
Can't wait until tomorrow to see where we stand on the battle with the rats...
Who will be on top?
Oh don't worry about us. We'll keep gnawing away.
Nah I am not worrying, more wondering how much our lead will be ;)
HA for the very briefest of time, I just pulled ahead of my friend Arjant2. This may be the ONLY time I'm ever ahead but for now, I've jumped over that large dung pile and am running like mad in circles.
20 Rick Reynolds Aggie The Pew 390516.89
21 Arjant2 Dutch Power Cows 385732.37
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@AggieThePew
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Does anyone have any suggestions for why an i7-970 running 10 cores would take 50% longer to complete a WU compared to an i7-950 running 7 cores?
What is more important, memory speed or clock speed?
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mackerelVolunteer tester
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For quads, I'd say clock speed. But I don't know if memory bandwidth might be choking at that number of threads running at the same time. Try limiting the i7-970 to 7 threads and see if that helps. Since LLR doesn't really have benefit from HT, I prefer to run it slightly above the physical core count to make sure it doesn't have any slack. But going above that probably wouldn't help throughput. |
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Same here on several machines, but other projects (RNA, GPUGRID etc) also.
Can't wait until tomorrow to see where we stand on the battle with the rats...
Who will be on top?
Oh don't worry about us. We'll keep gnawing away.
Nah I am not worrying, more wondering how much our lead will be ;)
HA for the very briefest of time, I just pulled ahead of my friend Arjant2. This may be the ONLY time I'm ever ahead but for now, I've jumped over that large dung pile and am running like mad in circles.
20 Rick Reynolds Aggie The Pew 390516.89
21 Arjant2 Dutch Power Cows 385732.37
Enjoy your lead over me, it will probably be a while before I can catch you, but my cows are not giving up.
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Michael GoetzVolunteer moderator
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Joined: 21 Jan 10
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Does anyone have any suggestions for why an i7-970 running 10 cores would take 50% longer to complete a WU compared to an i7-950 running 7 cores?
What is more important, memory speed or clock speed?
Maybe.
I'm guessing a 970 is a 6-core CPU while the 950 is a 4-core? (Ok, I looked that up, so it's not a guess anymore.) With the 970, with 10 WUs running, assuming the WUs don't rotate between cores (that assumption is probably false, but let's go with it anyway) you have two of the cores running one WU each (i.e., without hyperthreading), and the other four cores running two WUs each (with hyperthreading).
The 950, likewise, would be running 3 cores with HT on and 1 core with HT off.
The WUs on the non-HT cores would complete in roughly half the time that the WUs on the HT cores.
Essentially, since both CPUs are running with less the full utilization (which would be all WUs running with HT on) and with more than 50% utilization (which would be with all cores running with HT off), some WUs are going to run at speeds that are double what the other WUs are running at.
Now, I would expect that the WUs would be swapping back and forth between the fast cores and the slow cores, so in the end they aught to all be about the same speed, but for some reason it looks like that's not happening here. Perhaps the operating system you're using doesn't swap tasks between cores as often as Windows does, or you've got some settings that are keeping tasks locked to a single core.
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My lucky number is 75898524288+1 |
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Enjoy your lead over me, it will probably be a while before I can catch you, but my cows are not giving up.
Oh I will enjoy it while I can, because as I said, I'm sure it's only a brief lead and only for a short period of time. You cows as a whole are doing quite well. it's a good thing the horde has a stash of wu's to turn in over the next 24 hours.
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I'm running 5/8 on my 2600K. Maybe a little speedup from ht will be.
@Michael Goetz what do you think about that? |
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Horde beware! The herd just got a lost cow back and it's crunching with a vengeance! :P
Ut oh - would that lost cow be Amberjr - they just kicked in and jumped to the top of our little list..
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@AggieThePew
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Michael GoetzVolunteer moderator
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I'm running 5/8 on my 2600K. Maybe a little speedup from ht will be.
@Michael Goetz what do you think about that?
With LLR, on a hyperthreaded CPU, for the challenge, I recommend running without HT (i.e., 4/8). See a previous post in this thread by me for the detailed explanation.
For non-challenge running, or for sieves, run with HT on (8/8 -- unless you're also running a GPU WU, in which case you might -- or might not -- want to reserve one core for the GPU, depending on your preferences. I never reserved a core for the GPU.)
With an LLR WU, you'll get the same RAC whether HT is on or off. However, you may get more challenge points with HT off (4/8) -- and with such long WUs as we have during this challenge, the percentage difference could be non-trivial.
With sieves, you'll get a higher RAC with HT on (8/8), so you definitely want HT turned on for processing the CPU based sieves.
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My lucky number is 75898524288+1 |
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Thanks for the suggestions. Both machines are running win7-64 so no difference there. 970 has 3x4GB ram, the 950 has 3x2GB ram. The 970 is also clocked 5% faster than the 950 so naturally I'd expect it to be slight faster rather than 50% slower. All tasks on each machine finish in about the same time.
Just to throw something else into the mix, when running Riesel sieve or SGS it has been performing as expected, ie the 970 is about 5% faster than the 950.
I've dropped boinc down to 8 cores now to see if that makes a difference. Perhaps as suggested it's hitting a memory bandwidth bottleneck on these longer WUs. |
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Horde beware! The herd just got a lost cow back and it's crunching with a vengeance! :P
Ut oh - would that lost cow be Amberjr - they just kicked in and jumped to the top of our little list..
I was more referring to myself ;) Couldn't crunch from Friday till that post.
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PrimeGrid Challenge Overall standings --- Last update: From Pi to Paddy (2016)
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Michael GoetzVolunteer moderator
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Thanks for the suggestions. Both machines are running win7-64 so no difference there. 970 has 3x4GB ram, the 950 has 3x2GB ram. The 970 is also clocked 5% faster than the 950 so naturally I'd expect it to be slight faster rather than 50% slower. All tasks on each machine finish in about the same time.
Just to throw something else into the mix, when running Riesel sieve or SGS it has been performing as expected, ie the 970 is about 5% faster than the 950.
I've dropped boinc down to 8 cores now to see if that makes a difference. Perhaps as suggested it's hitting a memory bandwidth bottleneck on these longer WUs.
Given that the timings are consistent, the HT explanation doesn't fit.
50% isn't going to be easily explained away by memory issues, either.
What I would take a look at is the power settings for the slow machine. Make sure it's not set to power saver mode and is running the CPU at a slower clock rate when you're not using the machine, or when the CPU gets hot. There is a setting that switches between "when the CPU gets hot, spin the fan faster" and "when the CPU gets hot, slow the CPU down".
The only other thing I can think of that could cause that kind of degradation is that something other than BOINC is running. You're not also running folding@home or something like that on your computer, right? Or a virtual machine? Or anything else that might be using up 50% of your CPU cycles?
Both machines ARE desktops, right? The slow machine isn't a laptop?
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My lucky number is 75898524288+1 |
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Horde beware! The herd just got a lost cow back and it's crunching with a vengeance! :P
Ut oh - would that lost cow be Amberjr - they just kicked in and jumped to the top of our little list..
I was more referring to myself ;) Couldn't crunch from Friday till that post.
Well, as much as it pains me, I'm glad you are now crunching :)
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@AggieThePew
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NeoVolunteer tester
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Speaking of memory bottlenecks,
I am running a Phenom II x6 1055T overclocked to 3.4 ghz. I have four sticks of 2gig DDR2 memory running at 800mhz (stock).
My first six Woodall w/u's took a lot longer than I expected (~246,000 seconds).
Now I am only running four Woodall's to see if my times decrease; I'll post my results in a follow-up 50+ hours from now ;)
Here's the question:
Is there a way to assign each instance of LLR to a specific stick of memory? My gut feeling is that all of my work units are being crunched on a single stick of memory, thus creating a traffic jam, especially so because I'm stuck with DDR2.
If this were possible, would it make a difference?
Neo
Member of Aggie the Pew (AtP)
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mackerelVolunteer tester
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