1)
Message boards :
Number crunching :
Tour de Primes 2021
(Message 148580)
Posted 839 days ago by k4m1k4z3
I thought the red jersey had a winner with the 27 find. But now a Riesel! How long had it been since the last one? Will we get a larger prime until the end of TDP? I’m tempted to start crunching DYFL. What a year!
A GFN 19 could take the lead; that might be easier than DYFL...
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2)
Message boards :
Number crunching :
Tour de Primes 2021
(Message 148115)
Posted 850 days ago by k4m1k4z3
With the mentioned method of setting the maximum number of tasks, I found it to work only part of the time when GPU and CPU tasks are being run by the same client... sometimes I end up with multiple GPU tasks waiting to run, and not enough CPU tasks running, or the other way around.
What works better is to run 2 BOINC clients on each PC; one for GPU and the other for CPU. The GPU client can be set to allow 1 task at a time, and the CPU client can run free if you are doing anything other than PPSE.
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3)
Message boards :
Number crunching :
Tour de Primes 2020
(Message 138467)
Posted 1188 days ago by k4m1k4z3
Well done to everyone who has found primes so far and good luck in the final hours. I always enjoy seeing the people who have put many personal machines to work looking for primes. To those of you who have scores of non-personal machines - I hope you have permission.. and if you do, then good job & thanks for the contribution.
I got lucky this year with my limited hardware by finding one prime. I have more than 100 CPU threads sitting idle or completely powered off and I had to limit my GPU usage as well because I just couldn't bring my self to open the apartment windows and put fans in them, during the month of February... If this were April I might get away with it.
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4)
Message boards :
Number crunching :
Tour de Primes 2020
(Message 137551)
Posted 1209 days ago by k4m1k4z3
Wow, the improvements to our homepage stats have just been improved! I really like the breakdown of stats... so much time will be saved from not needing to look through pages of completed tasks for each host to understand how well it is doing at being 1st to complete the tasks.
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5)
Message boards :
Generalized Fermat Prime Search :
GFN prime discoveries II
(Message 131288)
Posted 1412 days ago by k4m1k4z3
About time. It was wearing me out just watching you announce all of them
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6)
Message boards :
Number crunching :
Year of the Pig Challenge
(Message 127596)
Posted 1552 days ago by k4m1k4z3
Your app_config.xml file refers to an unknown application 'llrGCW'. Known applications: 'genefer17low', 'genefer16', 'gcw_sieve', 'genefer15', 'pps_sr2sieve', 'llrSOB', 'llrESP', 'llr321', 'llrPPSE', 'llrSR5', 'llrPPS', 'llrCUL', 'llrWOO', 'ap26', 'genefer'
3/2/2019 12:48:13 PM
This is the notice I receive trying to test this project. Appreciate any help you can give me.
This is common to see when you set a config for a project you have not run yet. You need to run GCW in order for the BOINC client to know what you are referring to... The error should be resolved once you start your first GCW LLR task.
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7)
Message boards :
Number crunching :
2019 Tour de Primes
(Message 127569)
Posted 1553 days ago by k4m1k4z3
JeppeSN wrote: Oh......beijinghouse snatches the lead!!!
How lucky!
PPS MEGA found.
Phew....at least I wasn't the poor double checker :D
The thread 2019 Mega Primes says #311 is a PPS-MEGA and #312 is also a PPS-MEGA so there is one find after beijinghouse's, so maybe the last find will be the largest. /JeppeSN
That's why I'm waiting for that red message to disappear from the TdP page:
Results are not final until all primes are reported and this message disappears.
The red message is gone. Congrats to Honza for the largest prime.
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8)
Message boards :
Number crunching :
2019 Tour de Primes
(Message 127513)
Posted 1555 days ago by k4m1k4z3
I have not been able to limit tasks waiting in the queue. The only common trend I see is Boinc Manager likes to load additional tasks that match the number of processing cores the machine has. Limiting CPU usage helps, but it will not eliminate additional tasks. Based on what I saw, the higher number of cores, the harder it is to limit additional tasks in the queue.
It looks like there are several variations of how to keep your PC from downloading any extra tasks.
On my 20 core machine, I first set Prime Grid priority to 0 and 0 days of work queue. I then added the following line in my cc_config.xml file:
<ncpus>5</ncpus>
This causes the BOINC client to think I only have 5 cores on that machine. I then set the BOINC client to use 100% of the CPU.
In my app_config.xml I used the following to specify 4 threads per task, where each task uses up 1 CPU resource; since BOINC thinks I have 5 cores, it gives me at most 5 tasks.
<app>
<name>llrMEGA</name>
<fraction_done_exact/>
</app>
<app_version>
<app_name>llrMEGA</app_name>
<cmdline>-t 4</cmdline>
<avg_ncpus>1</avg_ncpus>
</app_version>
It looks like the method of setting BOINC to use only a % of the total cores instead of modifying how many cores BOINC sees would work the same way. I might revert to this method so that I can quickly use more threads without modifying the cc_config (also going to turn hyper threading back on... slower performance per individual task, but overall better computation performance per day)
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9)
Message boards :
Number crunching :
2019 Tour de Primes
(Message 127505)
Posted 1555 days ago by k4m1k4z3
But this is still Off Topic and I hope that I do not get banished for Good for Posting this.
The worst that could happen is you get Shut UP! badge. ;D
That would require 10k posts ... a long way off
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10)
Message boards :
Number crunching :
2019 Tour de Primes
(Message 127251)
Posted 1561 days ago by k4m1k4z3
Woohoo I found my first prime ever! And it is… I am double checker. F@@X!
=Lupus=
Well done! You might still get lucky and be the initial finder on a prime before the event ends.
If you set your BOINC client to store 0 days of work, you are more likely to be the 1st finder on the prime number.
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