Posts by Aurel

1) Message boards : News : Subfield 5 almost complete (Message 2490)
Posted 13 Jul 2019 by Profile Aurel
Post:
Neat! I saw you also started to deliver some sf7 tasks; hope thats not all from sf7. :D
2) Message boards : Science : Detailed Stats for the project (Message 2482)
Posted 1 Jul 2019 by Profile Aurel
Post:
Decic Search


SF4:

# of WU´s: 11,064,406
done: 7,165,014
Remain: 3,899,392
64,76%

SF 5 completed, excluded from Stats~

SF6:

# of WU´s: 58,593,904
Done: 5,996,167
Left: 52,597,737
10,23%

Whole Decic Search

# of WU´s: 92,311,283
done: 35,814,154
left: 56,497,129
38,8%
3) Message boards : News : Subfield 5 almost complete (Message 2479)
Posted 30 Jun 2019 by Profile Aurel
Post:
An other question about runtimes. As DS increases, will the runtimes increase a lil bit aswell; or are they stable and "only" the # of WU´s increases?

Also. I am noticing the amount of decic fields found increases, can you already say how much fields we found so far in SF6?
4) Message boards : News : GPU status update (Message 2475)
Posted 20 Jun 2019 by Profile Aurel
Post:
Ok or wrong:

On my pc the Nvidia GPU tasks additionally need a full CPU core (Get Decic Fields v3.03 (opencl_nvidia) windows_x86_64).
The GTX 1080 Ti card has a power usage of only 25% and the gpu utilization is 50%.

So I run two tasks. The gpu is underutilized and the cpu load is too high.
https://numberfields.asu.edu/NumberFields/result.php?resultid=50063132


GPU utilization will be fixed with optimization. This is dependent on individual card. My utilization is 97%, but that's because I optimized for my card, and those settings are now the default. When I find the time I will add an app_info.xml interface so that volunteers can easily tweak settings and report back the optimized values for their card.

I'm not sure why the cpu load is high. I've noticed that too on the cuda version. As a test, I removed the call to the GPU and the app finished within seconds. That means the vast majority of the time should be spent on the GPU. I'm guessing the CPU is "waiting" on the GPU to finish. The CPU buffers polynomials and then throws them at the GPU. I currently do this in blocks. I could increase the buffer to include every polynomial so there is only 1 call to the GPU. Then the CPU would not have to constantly wait on the GPU, but this would require close to 100GB of memory (worst case) which is not practical. But maybe there is a better way, I just haven't found it yet.



Could you increase the buffer to the following:

Read the user / computer specific max memory usage from there computing preferences and divide it but the max. running tasks (number of threads and graphics devices, if there supported / enabled) and set this value as max largest buffer?
This are just my two cents~
5) Message boards : News : Subfield 5 almost complete (Message 2469)
Posted 18 Jun 2019 by Profile Aurel
Post:
As you may have noticed, subfield 5 is nearing completion. In the next few hours the last of the work units will be sent out. Of course it will still take ~2weeks for the final results to trickle in before it's officially complete.

This is a huge milestone! This subfield was originally estimated to take over a year to complete. Due to the new optimized apps (including GPU apps), this was completed in just several months.

We will be moving on to subfield 4. But first we will make a short detour and finish off subfield 6 DS7. Don't let the ~2.5mil work units scare you. These were generated for the old apps, and would have taken about 2 hours a pop, but with the newer apps they should be about 10x faster. That means we should blow through about 350k work units per day. If this turns out to be too much of a strain on the server, then we will jump straight to subfield 4 (and run sf6 DS7 in parallel).

Thanks everyone for your contributions! We couldn't have done this without our volunteers.



Last 24h we finished 225K workunits; most of course from SF6. :)
I expect to have slight larger runtimes for SF4 and SF5, is that correct?
6) Message boards : News : GPU status update (Message 2443)
Posted 17 May 2019 by Profile Aurel
Post:
Have a nice vacation. I will try to complete as much GPU tasks as i can. ;)
7) Message boards : News : GPU status update (Message 2439)
Posted 17 May 2019 by Profile Aurel
Post:
Runtime from a sf5 task: 1 hour and 3 minutes; which is ~3 times faster than a CPU task.
Runtime from a sf6 DS7x10: ~7 minutes, which i cant relate to a CPU task at this time.

No errors while running the task.
It seems to work fine, at least for me. :)
8) Message boards : Number crunching : How do I get WUs (Message 2432)
Posted 16 May 2019 by Profile Aurel
Post:
Ah!
This project has so far only CPU apps available; but GPU Apps are in work!
9) Message boards : News : GPU status update (Message 2429)
Posted 16 May 2019 by Profile Aurel
Post:
Feel free to send me the openCL Windows app via mail. Would like to give it a try. :)
10) Message boards : Science : Detailed Stats for the project (Message 2423)
Posted 12 May 2019 by Profile Aurel
Post:
Decic Search

SF5:

# of WU´s: 13,824,585
Done: 12,502,690
Left: 1,321,895
90,44%

SF6:

# of WU´s: 58,593,904
Done: 1,354,740
Left: 57,239,164
2,31%

Whole Decic Search

# of WU´s: 88,411,891
done: 29,850,832
left: 58,561,059
33,76%
11) Message boards : News : Subfield 5 entering final phase (Message 2416)
Posted 6 May 2019 by Profile Aurel
Post:
I know that i havent been much active here since i am working on my own stuff, but its good to hear that this project is moving forward!
Quick heads-up: SF6 will give us (at least) 58M tasks, so there will be work for quite a long time~
(an other heads up: total amount of all workunits from the Decic Search is now at 88,411,891; we are getting closer to 100M. No doubt we are going to get over 100M :D Fun fact, said number is prim. ^^)

But I´d like to ask when we will get the remaining Batches from SF3, like 13x270.
That could be loaded together with SF6 after SF5 is fully done, or?
12) Message boards : Science : User contributions listed anywhere? (Message 2068)
Posted 9 Jun 2018 by Profile Aurel
Post:
What about the bounded app?
Most of my points come from this application.


[OT]
As you may have notice I´m back to my personal prime search and factoring stuff. But, I will come back at some time. I need to be under Top 10 from my country; atm I´m at position 11 and needing a bit more than 2 millions points to reach TOP10.
[/OT]
13) Message boards : Science : Detailed Stats for the project (Message 1910)
Posted 2 Dec 2017 by Profile Aurel
Post:
Decic Search

SF3:

All: 6,219,773
Done: 4,632,915
Left: 1,586,858
74,48%

SF4:

All: 2,404,435
Done: 1,981,897
Left: 422,538
82,43%

ALL

All: 11,232,823
done: 9,223,427
left: 2,009,396
82,11%
14) Message boards : Number crunching : Some work restart from zero after short "pause" (Message 1909)
Posted 30 Nov 2017 by Profile Aurel
Post:
Works fine now. :)

This comeback will be sadly very short, since I have my own sub project running on yoyo@home.
15) Message boards : Number crunching : Some work restart from zero after short "pause" (Message 1908)
Posted 27 Nov 2017 by Profile Aurel
Post:
Yeah, it looks like there may have been a problem with your system or the BOINC manager. The next computer that picked up that WU finished it successfully and the stderr shows check pointing working as expected.


Yes. Now I upgraded the manager, after I got the same problem on amicable numbers.
Now it should work, i´ll be back in a few days.
16) Message boards : Number crunching : Some work restart from zero after short "pause" (Message 1906)
Posted 25 Nov 2017 by Profile Aurel
Post:
It's possible that it never got to the point in the code where it checkpoints.


Even after 1,5 hrs? Mhm.

https://numberfields.asu.edu/NumberFields/result.php?resultid=21141746
He was at N2=16 and decided to restart the WU. Maybe its bcs my BOINC manager is not up-to-date...
17) Message boards : Number crunching : Some work restart from zero after short "pause" (Message 1904)
Posted 25 Nov 2017 by Profile Aurel
Post:
I was pausing some sf3 work (3 WU´s) and after restart they just started from 0%, like they ignore there checkpoint. (See code, cp disabled???)
Those units already run for >1hrs and I decided to abort them in order to switch to an other project for a while. Also the runtime seems to be resetted.

Why is he starting the BOINC runtime Debugger? There is no need, bcs "203 (0x000000CB) EXIT_ABORTED_VIA_GUI"


aborted by user
</message>
<stderr_txt>
Checkpoint Flag = 0.
Cvec Starting Index = 0.
18) Message boards : Science : Detailed Stats for the project (Message 1890)
Posted 15 May 2017 by Profile Aurel
Post:
Decic Search

SF3:

All: 6,219,773
Done: 3,707,006
Left: 2,512,767
59,60%

SF4:

All: 1,250,367
Done: 806,442
Left: 443,925
64,50%

ALL

All: 10,078,755
done: 7,122,063
left: 2,956,692
70,66%
19) Message boards : Science : Detailed Stats for the project (Message 1889)
Posted 13 May 2017 by Profile Aurel
Post:
Decic Search

SF3:

All: 6,219,773
Done: 3,704,089
Left: 2,515,684
59,55%

SF4:

All: 1,250,367
Done: 794,776
Left: 455,591
63,56%

ALL

All: 10,078,755
done: 7,107,480
left: 2,971,275
70,52%
20) Message boards : Cafe : Hello every one. Just wanted to say Hi :-) (Message 1888)
Posted 9 May 2017 by Profile Aurel
Post:
Hey, hey people.
Well after an long break I´m now back again and processing a few wu´s.
As I stated in my progress thread, I´m now an researcher at CRUS/srbase project. This is very time and resources consuming (running 6 dedicated servers)...
Anyway, I´m back for now.

I´m still focusing on primes. The finding from my mega-prime 4 · 797^468702+1 (http://primes.utm.edu/primes/page.php?id=122954) was an unbelievable feeling. :)


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