PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise
1) Message boards : Number crunching : How to compare performance for a particular sub-project (Message 143738)
Posted 7 hours ago by Profile Michael GoetzProject donor
I'm curious to see the (near) median values for cpu_time and elapsed_time for this example.
select MIN(cpu_time) FROM (SELECT TOP 50 PERCENT cpu_time from result r join host h on r.hostid=h.id join workunit w on r.workunitid=w.id where r.appid=13 and server_state=5 and outcome=1 and validate_state in (0,1,4) and !(w.opaque & 0x4000) and h.p_model like '%3970x%');
select MIN(elapsed_time) FROM (SELECT TOP 50 PERCENT elapsed_time from result r join host h on r.hostid=h.id join workunit w on r.workunitid=w.id where r.appid=13 and server_state=5 and outcome=1 and validate_state in (0,1,4) and !(w.opaque & 0x4000) and h.p_model like '%3970x%');



MySQL does not support TOP.
2) Message boards : Number crunching : LLR2 installed on all big LLR projects (Message 143728)
Posted 15 hours ago by Profile Michael GoetzProject donor
One of my hosts has problems with LLR2 Extended Sierpinski Problem v9.00.

Crunches wu but then comes File transfer errors. Proof of computation transfers?

http://www.primegrid.com/result.php?resultid=1130877910

<file_xfer_error> <file_name>llrESP_345876363_0_r1102069354_0</file_name> <error_code>-161</error_code> </file_xfer_error>


It could be old Boinc client or old Linux... Havent tested yet in others LLR projects.


Are you running out of disk space? Not just actual space on the disk, but the amount of space you've configured BOINC to use? LLR2 uses a lot of disk space compared to the old LLR.
3) Message boards : 321 Prime Search : 321 Sieve is being SUSPENDED (Message 143686)
Posted 2 days ago by Profile Michael GoetzProject donor

We will need to restart the CW sieve at some point.

that would be a disaster.


Why would it be a disaster?
4) Message boards : Number crunching : How to compare performance for a particular sub-project (Message 143675)
Posted 2 days ago by Profile Michael GoetzProject donor
I have particular problems with SOB, I am unsure as well if my setting are in the best config. I have 3 GPUs and tasks between each card (all 2070supers) seem to vary quite a bit as well. My system acts funny when I turn HT off, I am running ubuntu, and when I turn HT off in Bios, funny things happen. Generally, 50% cpus gets me the best result, I found that SOB runs best using 8 threads per task, where as most other subprojects the magic number is 4 threads per task


+---------+---------+----------+-------------------+-------------------+ | userid | hostid | count(*) | avg(cpu_time) | avg(elapsed_time) | +---------+---------+----------+-------------------+-------------------+ | | | 18 | 7276841.777777778 | 895767.7073937221 | | | | 26 | 5213018.423076923 | 639105.9981281538 | | 1257095 | 1002364 | 4 | 801615.3 | 105434.445987 | +---------+---------+----------+-------------------+-------------------+


(SQL: select r.userid,r.hostid,count(*),avg(cpu_time),avg(elapsed_time) from result r join host h on r.hostid=h.id join workunit w on r.workunitid=w.id where r.appid=13 and server_state=5 and outcome=1 and validate_state in (0,1,4) and !(w.opaque & 0x4000) and h.p_model like '%3970x%' group by r.userid,r.hostid;)

Considering SOB times vary depending on the K, I'm not sure if there's any useful information you can get from that data. It excludes the fast DC tasks. Those would really mess with then numbers!

EDIT: I incorrectly removed the fast DC tasks before. The numbers now are correct. The sample size is larger but the times didn't change much.
5) Message boards : Number crunching : How to compare performance for a particular sub-project (Message 143651)
Posted 3 days ago by Profile Michael GoetzProject donor
Let's say I want to crunch SOB. And I want to compare my computer's performance against the rest of the field for that sub-project. Specifically, I want to see what machines are fastest, and then drill down to see their configs (and threads per task). Is there a way to show all results and filter by sub-project?


Unfortunately not.

I can't even do that manually querying the database. At least not if I want to get solid, reliable results.

The reason I don't even try to get that information for myself, let alone make it available to users, is that the signal to noise ratio is so low as to make it almost useless.

While I can see the CPU models, and with some difficulty can see how many threads were used, we don't have any information about hyperthreading, what else is running on the computer, clock speeds, memory speeds, etc.
6) Message boards : Generalized Cullen/Woodall prime search : GCW tasks not showing in "Tasks returned in last 24 hours" table (Message 143622)
Posted 3 days ago by Profile Michael GoetzProject donor
It should be fixed now.
7) Message boards : Generalized Cullen/Woodall prime search : GCW tasks not showing in "Tasks returned in last 24 hours" table (Message 143621)
Posted 3 days ago by Profile Michael GoetzProject donor
I found the problem. It will be fixed shortly.
8) Message boards : Generalized Cullen/Woodall prime search : GCW tasks not showing in "Tasks returned in last 24 hours" table (Message 143620)
Posted 3 days ago by Profile Michael GoetzProject donor
GCW tasks are not showing in "Tasks returned in last 24 hours" table.

I think it stopped at about same time as "fast double checking" was enabled for GCW.

--
Lumiukko


I don't see anything obviously wrong. Are you seeing other projects in there? Is it just GCW that's missing? You have 3 GCW tasks that should be showing up in that table, on two hosts.

Edit: Disregard the question.
9) Message boards : Generalized Cullen/Woodall prime search : GCW tasks not showing in "Tasks returned in last 24 hours" table (Message 143618)
Posted 3 days ago by Profile Michael GoetzProject donor
GCW tasks are not showing in "Tasks returned in last 24 hours" table.

I think it stopped at about same time as "fast double checking" was enabled for GCW.

--
Lumiukko


I'll look into it.
10) Message boards : AP26 - AP27 Search : AP27 Closing??? (Message 143604)
Posted 4 days ago by Profile Michael GoetzProject donor
Has anything come of the discussion whether or not to keep AP-27 running? Or looking for AP-28?


There hasn't been any discussion recently.


Next 10 posts
[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2020 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 3.48, 3.38, 3.43
Generated 28 Sep 2020 | 5:35:07 UTC