New CUDA BRP4 app versions 1.28

dskagcommunity
dskagcommunity
Joined: 16 Mar 11
Posts: 89
Credit: 1,171,014,828
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hm to late for edit. I

hm to late for edit.

I wanted to try it with my 8800GT too but i dont get any work O.o
Sheduler Log: http://einstein.phys.uwm.edu//host_sched_logs/4067/4067215

I use the same Driver/BOINC/Windows/"Workgroup:work" version like the working 9800GTX machine. I tried to detach and reattach too. Im confused. Plz help ^^

DSKAG Austria Research Team: [LINK]http://www.research.dskag.at[/LINK]

Holmis
Joined: 4 Jan 05
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BRP4 work distribution

BRP4 work distribution stopped for a few hours.

See this post in the Technical News section of the boards.

dskagcommunity
dskagcommunity
Joined: 16 Mar 11
Posts: 89
Credit: 1,171,014,828
RAC: 267,609

only the work generation

only the work generation seems to be stopped. Distribution should run or do i read that wrong?

Tasks to send brp4 18,113

DSKAG Austria Research Team: [LINK]http://www.research.dskag.at[/LINK]

TJ
TJ
Joined: 11 Feb 05
Posts: 178
Credit: 21,041,858
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On my GTX 550Ti Binary Radio

On my GTX 550Ti Binary Radio Pulsar Search (Arecibo) v1.28 is running 20 minutes faster than with v1.25, so that is very good work from the programmer(s)!
Temperature goes from 71°C to 75-76°C but that is still within the safe range of the graphics board.

Greetings from
TJ

Sid
Sid
Joined: 17 Oct 10
Posts: 160
Credit: 936,395,161
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Ignore this please.

Ignore this please.

Alex
Alex
Joined: 1 Mar 05
Posts: 451
Credit: 502,854,980
RAC: 39,665

RE: On my GTX 550Ti Binary

Quote:
On my GTX 550Ti Binary Radio Pulsar Search (Arecibo) v1.28 is running 20 minutes faster than with v1.25, so that is very good work from the programmer(s)!
Temperature goes from 71°C to 75-76°C but that is still within the safe range of the graphics board.

Which driver version do you use?
I use the latest beta and see a decrease of performance. I can remember that there were problems with some versions of drivers; i want to downgrade but do not know which version fits best.

Regards

Alexander

MAGIC Quantum Mechanic
MAGIC Quantum M...
Joined: 18 Jan 05
Posts: 1,724
Credit: 1,116,095,680
RAC: 1,452,165

RE: RE: On my GTX 550Ti

Quote:
Quote:
On my GTX 550Ti Binary Radio Pulsar Search (Arecibo) v1.28 is running 20 minutes faster than with v1.25, so that is very good work from the programmer(s)!
Temperature goes from 71°C to 75-76°C but that is still within the safe range of the graphics board.

Which driver version do you use?
I use the latest beta and see a decrease of performance. I can remember that there were problems with some versions of drivers; i want to downgrade but do not know which version fits best.

Regards

Alexander

I use driver: 301.42

Fred J. Verster
Fred J. Verster
Joined: 27 Apr 08
Posts: 118
Credit: 22,451,438
RAC: 0

A significant difference

A significant difference between ver.1.25 and 1.28 BRP4-CUDA 3.2.
[pre]

Task ID

Show names Work unit ID
Sent Time reported or deadline Status Run time(sec) CPU time
(sec) Claimed credit Granted credit Application
305858089 130977223 1 Sep 2012 0:39:16 UTC 6 Sep 2012 17:52:39 UTC Completed and validated 2,141.69 431.63 3.20 500.00 Binary Radio Pulsar Search (Arecibo) v1.28 (BRP4cuda32)
305858085 130977221 1 Sep 2012 0:39:16 UTC 7 Sep 2012 14:55:44 UTC Completed and validated 2,149.69 420.89 3.12 500.00 Binary Radio Pulsar Search (Arecibo) v1.28 (BRP4cuda32)
305858079 130977218 1 Sep 2012 0:39:16 UTC 6 Sep 2012 17:52:39 UTC Completed and validated 2,122.52 416.27 3.09 500.00 Binary Radio Pulsar Search (Arecibo) v1.28 (BRP4cuda32)
305858025 130977193 1 Sep 2012 0:39:16 UTC 7 Sep 2012 17:17:12 UTC Completed and validated 2,137.81 442.55 3.28 500.00 Binary Radio Pulsar Search (Arecibo) v1.28 (BRP4cuda32)
305857797 130977085 1 Sep 2012 0:39:16 UTC 7 Sep 2012 16:05:35 UTC Completed and validated 2,109.02 436.16 3.24 500.00 Binary Radio Pulsar Search (Arecibo) v1.28 (BRP4cuda32)
305762906 130934581 31 Aug 2012 10:42:35 UTC 6 Sep 2012 13:52:29 UTC Completed and validated 3,496.28 967.23 7.18 500.00 Binary Radio Pulsar Search (Arecibo) v1.25 (BRP4cuda32)
305762898 130934577 31 Aug 2012 10:42:35 UTC 6 Sep 2012 9:52:18 UTC Completed and validated 3,382.53 942.89 7.00 500.00 Binary Radio Pulsar Search (Arecibo) v1.25 (BRP4cuda32)
305762888 130921150 31 Aug 2012 10:42:35 UTC 6 Sep 2012 9:52:18 UTC Completed and validated 3,478.78 935.70 6.94 500.00 Binary Radio Pulsar Search (Arecibo) v1.25 (BRP4cuda32)
305762883 130934571 31 Aug 2012 10:42:35 UTC 6 Sep 2012 13:52:29 UTC Completed and validated 3,494.27 948.31 7.04 500.00 Binary Radio Pulsar Search (Arecibo) v1.25 (BRP4cuda32) [/pre]

On this
host,
which does 2 instances_per_device = GPU GTX480.

An impressive gain and really noticeble and higher throughput or RAC!
Shorter RunTime and lower CPU-time! Driver 275.33.

Alex
Alex
Joined: 1 Mar 05
Posts: 451
Credit: 502,854,980
RAC: 39,665

RE: I use driver:

Quote:


I use driver: 301.42

THX

Fred J. Verster
Fred J. Verster
Joined: 27 Apr 08
Posts: 118
Credit: 22,451,438
RAC: 0

After looking at several

After looking at several results (BRP4 ATI/CUDA app.) I notice specially
on mid-range GPUs, quite some time is used for CheckPointing,
On my GTX480+X9650CPU{@3.6GHz), 100 seconds but on slower GPU(/CPUs)
up to 800 seconds.

Some GPUs hardly ever checkpoint.
I assume the WEB-Site preferences, BOINC local also, have a checkpoint setting
but does the setting have any effect.
And the checkpoint isn't actually used or needed since the following computation
starts from scratch?

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