1) Message boards : News : Production 2013 (Message 25450)
Posted 16 Feb 2013 by boroda3
Post:
First GPUs; this NOT easy. SixTrack is in Fortran.
Almost all GPU support is in CUDA for C.


What is in the Fortran, which is not in the C? Unique Scientific Library?
All other code translates to the C without any problems.

Don't use CUDA please. CUDA - for NVIDIA card only, not for ATI and other. Use OpenCL instead, it is the same for both.
2) Message boards : Number crunching : How is the SSE3 thing coming along? (Message 24344)
Posted 14 Jul 2012 by boroda3
Post:
I have SSE2 and PNI WU's.

Task / Run Time / App

4148834 / 15,002.69 / SixTrack v444.01 (pni)
4148831 / 14,962.90 / SixTrack v444.01 (pni)
4148621 / 15,884.89 / SixTrack v444.01 (pni)

4168474 / 887.66 / SixTrack v444.01 (sse2)
4168472 / 1,394.16 / SixTrack v444.01 (sse2)
4168470 / 1,023.10 / SixTrack v444.01 (sse2)

BOINC 7.0.28, Win7 x86, AMD Phenom II X4 955

You say, that SSE3/PNI faster? Hmm...

Again problems with optimization for AMD processor? Don't use Intel compiler.
3) Message boards : Number crunching : Maximum elapsed time exceeded (Message 24001)
Posted 25 Jun 2012 by boroda3
Post:
No Athlon. Phenom II X4 955. Passed very strong test.

But task protocol says:
<core_client_version>7.0.28</core_client_version>
<![CDATA[
<message>
Maximum elapsed time exceeded
</message>
<stderr_txt>

Unhandled Exception Detected...

- Unhandled Exception Record -
Reason: Breakpoint Encountered (0x80000003) at address 0x752B3E2E


It's not like a performance problem.

---------------
PS to Message 23998: Crashed tasks are 3653125, 3653119, 3653107, 3653085
4) Message boards : Number crunching : Maximum elapsed time exceeded (Message 23998)
Posted 25 Jun 2012 by boroda3
Post:
Thread is 2 years old but I have the same problem


Yes, I too.

25.06.2012 18:37:09 | LHC@home 1.0 | Starting task w29feb_job_tracking_bignblz__23__s__62.31_60.32__6_8__5__63_1_sixvf_boinc1686_2 using sixtrack version 44307 in slot 2
25.06.2012 18:43:29 | LHC@home 1.0 | Starting task w29feb_job_tracking_bignblz__17__s__62.31_60.32__8_10__5__85.5_1_sixvf_boinc1254_2 using sixtrack version 44307 in slot 5
25.06.2012 19:31:02 | LHC@home 1.0 | Starting task w29feb_job_tracking_bignblz__10__s__62.31_60.32__6_8__5__81_1_sixvf_boinc702_3 using sixtrack version 44307 in slot 6
25.06.2012 19:32:47 | LHC@home 1.0 | Aborting task w29feb_job_tracking_bignblz__23__s__62.31_60.32__6_8__5__63_1_sixvf_boinc1686_2: exceeded elapsed time limit 3335.88 (120000.00G/35.97G)
25.06.2012 19:39:07 | LHC@home 1.0 | Aborting task w29feb_job_tracking_bignblz__17__s__62.31_60.32__8_10__5__85.5_1_sixvf_boinc1254_2: exceeded elapsed time limit 3335.88 (120000.00G/35.97G)
25.06.2012 19:39:08 | LHC@home 1.0 | Starting task w29feb_job_tracking_bignblz__21__s__62.31_60.32__6_8__5__63_1_sixvf_boinc1534_2 using sixtrack version 44307 in slot 5
25.06.2012 20:26:40 | LHC@home 1.0 | Aborting task w29feb_job_tracking_bignblz__10__s__62.31_60.32__6_8__5__81_1_sixvf_boinc702_3: exceeded elapsed time limit 3335.88 (120000.00G/35.97G)
25.06.2012 20:34:45 | LHC@home 1.0 | Aborting task w29feb_job_tracking_bignblz__21__s__62.31_60.32__6_8__5__63_1_sixvf_boinc1534_2: exceeded elapsed time limit 3335.88 (120000.00G/35.97G)

All WUs breaks with remaining time about 5-10 minutes, percents don't stops. May be it is not error of my system (Phenom II X4 @ 3.3GHz) - but wasted time.

I think the other tasks of this party can also be immediately disposed of, not to be wasted CPU.



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