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drummers-lowrise
1) Message boards : Generalized Fermat Prime Search : GFN prime discoveries II (Message 131288)
Posted 28 days ago by k4m1k4z3Project donor
About time. It was wearing me out just watching you announce all of them
2) Message boards : Number crunching : Year of the Pig Challenge (Message 127596)
Posted 168 days ago by k4m1k4z3Project donor
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.
3) Message boards : Number crunching : 2019 Tour de Primes (Message 127569)
Posted 169 days ago by k4m1k4z3Project donor
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.
4) Message boards : Number crunching : 2019 Tour de Primes (Message 127513)
Posted 170 days ago by k4m1k4z3Project donor
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)
5) Message boards : Number crunching : 2019 Tour de Primes (Message 127505)
Posted 171 days ago by k4m1k4z3Project donor
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
6) Message boards : Number crunching : 2019 Tour de Primes (Message 127251)
Posted 177 days ago by k4m1k4z3Project donor
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.
7) Message boards : Number crunching : 2019 Tour de Primes (Message 127237)
Posted 177 days ago by k4m1k4z3Project donor
The language is different between the two browsers. Is there a reason why the browser that works is displaying the page in English? Or do you have a plugin that translates the page?
8) Message boards : Number crunching : 2019 Tour de Primes (Message 126892)
Posted 183 days ago by k4m1k4z3Project donor

Try this: according to your configuration


In Boinc preferences, set the machine to use 25% of CPU
in app_config, set the task as either:

-t 1
Avg_cpu = .25

--or--

-t 2
avg_cpu = .5

this should make it wait until the task is done, and CPU is idle before requesting new work (you lose 6-10 seconds in my experience while the next task is fetched)


Oh my.... this was a bad idea... I should have set the BOINC to use 25% first but forgot. I now have 50 pps Mega in progress.


<app>
<name>llrMEGA</name>
<fraction_done_exact/>
<max_concurrent>5</max_concurrent>
</app>
<app_version>
<app_name>llrMEGA</app_name>
<cmdline>-t 1</cmdline>
<avg_ncpus>.25</avg_ncpus>
</app_version>
9) Message boards : Number crunching : 2019 Tour de Primes (Message 126887)
Posted 183 days ago by k4m1k4z3Project donor
Pretty sure this must have been answered before somewhere but I can’t find it so will ask again:

If you set the BOINC client to have 0 days of additional work, I see that it still downloads new tasks when the current ones have about 2mins 40secs or so of time remaining. Is that supposed to happen?


I have that problem on my 20 core machine... I run 5 x 4core, and when it drops down to 4 ppsMEGA in process, it downloads 4 more, regardless of how far along the existing 4 are... sometimes 30 minutes before they start crunching. Project resources set to 0, additional work queues set for 0.
10) Message boards : Number crunching : 2019 Tour de Primes (Message 126857)
Posted 184 days ago by k4m1k4z3Project donor
It feels like we are about due for another mega prime or two...


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