Message boards : Theory Application : Maybe abnormally low credits for Intel(R) Xeon(R) CPU E5-2699 v3
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NOGOOD

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Message 43821 - Posted: 10 Dec 2020, 19:03:03 UTC

https://lhcathome.cern.ch/lhcathome/result.php?resultid=290754666

CPU type: GenuineIntel Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz [Family 6 Model 63 Stepping 2]
Run time: 3 hours 58 min 31 sec
CPU time: 3 hours 49 min 52 sec
Credits: 33.13

Why so less credits?

The same device running SixTrack, for example, give me about 5 times more...
All tasks running Theory at this device give me almost no credits...
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maeax

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Message 43823 - Posted: 10 Dec 2020, 19:14:56 UTC

You can do a Benchmark-Test in Boinc:
Your task of Theory show:
max. FLOPS des Gerätes 1.00 GFLOPS
Maybe the stats are not correct.
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NOGOOD

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Message 43824 - Posted: 10 Dec 2020, 19:22:52 UTC - in response to Message 43823.  

Task page shows device peak of 1.00 GFLOPS
Device page shows 3.42 GFLOPS
BOINC manager shows 3.2 GFLOPS

Device page and BOINC manager GFLOPS looks like true...
Information on Task page looks incorrect on my opinion...
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maeax

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Message 43826 - Posted: 10 Dec 2020, 19:41:40 UTC - in response to Message 43824.  

In the cpu_list this Computer is not shown:
https://lhcathome.cern.ch/lhcathome/cpu_list.php
Maybe, every CPU need some Computer to build a normal GFlops per task?
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NOGOOD

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Message 43828 - Posted: 10 Dec 2020, 19:53:14 UTC - in response to Message 43826.  

Intel(R) Xeon(R) CPU E5-2699 v3 really is not in list.
I run it about 2 weeks only, but It can't be I'm the first participant with this CPU.
Why this CPU is not in list?
If I'm first indeed, when it will be included in list?
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Message 43829 - Posted: 10 Dec 2020, 19:57:32 UTC - in response to Message 43828.  

Device peak of 1.00 GFLOPS is too accurate value to be true
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maeax

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Message 43830 - Posted: 10 Dec 2020, 19:59:20 UTC - in response to Message 43828.  

If I'm first indeed, when it will be included in list?

At the end of the list is the update-time and day.
Only once a day.
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Message 43831 - Posted: 10 Dec 2020, 20:06:00 UTC - in response to Message 43830.  

At the end of the list is the update-time and day.
Only once a day.

So, my CPU should be included in list many days ago.
Oh...
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maeax

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Message 43832 - Posted: 10 Dec 2020, 20:25:55 UTC - in response to Message 43831.  

This CPU-list is a part of the Boinc-System.
Other projects have this list also included.
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Message 43833 - Posted: 10 Dec 2020, 20:31:34 UTC - in response to Message 43832.  

This CPU-list is a part of the Boinc-System.
Other projects have this list also included.

Meanwhile, Einstein evaluate my CPU correctly:
3208.77 million ops/sec
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maeax

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Message 43834 - Posted: 10 Dec 2020, 20:35:20 UTC - in response to Message 43833.  

Then we need a ticket for support ;-)
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NOGOOD

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Message 43835 - Posted: 10 Dec 2020, 20:38:20 UTC - in response to Message 43834.  

Then we need a ticket for support ;-)

Yes :-) It's not comfortable to run with no credits :-)
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NOGOOD

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Message 43929 - Posted: 16 Dec 2020, 8:35:05 UTC

Now I have the same problem on another one of my PC with
Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz [Family 6 Model 60 Stepping 3]:
https://lhcathome.cern.ch/lhcathome/show_host_detail.php?hostid=10675225

Computer's page and Theory task's pages shows wrong device peak of 1.00 GFLOPS.
And I have abnormally low credits for Theory on this PC too.

This processor is in this list:
https://lhcathome.cern.ch/lhcathome/cpu_list.php

According to the list GFLOPS per core must be 3.91.
BOINC manager benchmark shows 3.8 GFLOPS per core.

P.S. SixTrack credits are correct.
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Message 43930 - Posted: 16 Dec 2020, 8:41:37 UTC - in response to Message 43929.  

Now I have the same problem on another one of my PC with
Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz [Family 6 Model 60 Stepping 3]:
https://lhcathome.cern.ch/lhcathome/show_host_detail.php?hostid=10675225

Computer's page and Theory task's pages shows wrong device peak of 1.00 GFLOPS.
And I have abnormally low credits for Theory on this PC too.

This processor is in this list:
https://lhcathome.cern.ch/lhcathome/cpu_list.php

According to the list GFLOPS per core must be 3.91.
BOINC manager benchmark shows 3.8 GFLOPS per core.

P.S. SixTrack credits are correct.


O !!!

Everything is fine on another one of my PC with THE SAME CPU:
https://lhcathome.cern.ch/lhcathome/show_host_detail.php?hostid=10570965

With older versions of Windows, BOINC and VirtualBox...
Seems like not CPU is a reason.
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computezrmle
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Message 43931 - Posted: 16 Dec 2020, 9:23:36 UTC

It is known for years that credits per computer can go up or down by magnitudes all of a sudden even if a user didn't change anything.

LHC@home uses BOINC's credit system which is explained here:
https://boinc.berkeley.edu/trac/wiki/CreditAlt
https://boinc.berkeley.edu/trac/wiki/CreditGeneralized
https://boinc.berkeley.edu/trac/wiki/CreditNew
https://boinc.berkeley.edu/trac/wiki/CreditNotes
https://boinc.berkeley.edu/trac/wiki/CreditOptions
https://boinc.berkeley.edu/trac/wiki/CreditProposal


Suggestions and complaints should be made here:
https://boinc.berkeley.edu
https://github.com/BOINC/boinc
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Message 43932 - Posted: 16 Dec 2020, 9:38:25 UTC - in response to Message 43931.  

Thank you.

Wrong device peak of 1.00 GFLOPS should be ignored too?
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computezrmle
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Message 43933 - Posted: 16 Dec 2020, 9:50:29 UTC - in response to Message 43932.  

... device peak of 1.00 GFLOPS should be ignored too?

You may run BOINC benchmarks, then contact the project server.
Already downloaded tasks do not update the GFLOPS value.
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Message 43934 - Posted: 16 Dec 2020, 10:55:03 UTC - in response to Message 43933.  

... device peak of 1.00 GFLOPS should be ignored too?

You may run BOINC benchmarks, then contact the project server.
Already downloaded tasks do not update the GFLOPS value.

Thank you, I'll try this.
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Message 43937 - Posted: 17 Dec 2020, 12:22:51 UTC - in response to Message 43934.  

... device peak of 1.00 GFLOPS should be ignored too?

You may run BOINC benchmarks, then contact the project server.
Already downloaded tasks do not update the GFLOPS value.

Thank you, I'll try this.

computezrmle, thank you!
It worked out.
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Message boards : Theory Application : Maybe abnormally low credits for Intel(R) Xeon(R) CPU E5-2699 v3


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