Gravitational Wave S6 Directed Search (CasA) v. 1.06 Beta Test

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
Moderator
Joined: 28 Aug 06
Posts: 3522
Credit: 721359145
RAC: 1121497

Thanks for

Thanks for reporting.

There will be a new version of the OpenCL AMD app version on Monday fixing this problem. Till then (as the Windows versions also have problems), NVIDIA under Linux is the only remaining OpenCl app version in the beta test. Stay tuned.

HB

floyd
floyd
Joined: 12 Sep 11
Posts: 133
Credit: 186610495
RAC: 0

Any chance the memory

Any chance the memory requirements will be lowered? I have a 512MB NVIDIA ready to do a few tests.

jd
jd
Joined: 13 Mar 05
Posts: 36
Credit: 556804511
RAC: 83610

I have the same issue as

I have the same issue as Nigel Garvey with my PowerMac G5.

The actual error is:

process exited with code 193 (0xc1, -63)

and

SIGBUS: bus error

Bernd Machenschalk
Bernd Machenschalk
Moderator
Administrator
Joined: 15 Oct 04
Posts: 4312
Credit: 250362650
RAC: 35265

Thanks for testing. For the

Thanks for testing. For the time being I disabled the ALTIVEC-Beta app.

BM

BM

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
Moderator
Joined: 28 Aug 06
Posts: 3522
Credit: 721359145
RAC: 1121497

RE: Any chance the memory

Quote:
Any chance the memory requirements will be lowered? I have a 512MB NVIDIA ready to do a few tests.

Sorry, I have very little hope that we can squeeze the current Cas A workunit data to fit onto 512MB cards in a safe way (so the card can also perform its main task of displaying graphics).

HBE

ExtraTerrestrial Apes
ExtraTerrestria...
Joined: 10 Nov 04
Posts: 770
Credit: 577290218
RAC: 193975

RE: Any chance the memory

Quote:
Any chance the memory requirements will be lowered? I have a 512MB NVIDIA ready to do a few tests.


Running double precision (as required) your GT 430 would not be faster than a single CPU core.. which applies to almost any GPU with 512 MB of VRAM or less.

MrS

Scanning for our furry friends since Jan 2002

floyd
floyd
Joined: 12 Sep 11
Posts: 133
Credit: 186610495
RAC: 0

Thanks for your replies. I

Thanks for your replies. I didn't expect much throughput from this GPU anyway, just an opportunity to make some good use before retirement. I'll have to face the fact that there's no use anymore.

Frankly, I'm a bit worried by the tendency towards big work units. Sure, that fits the high performance GPUs better, but even my main GPU "only" has 1GB of RAM, which seems to be the minimum for all new applications. Just one more step in that direction and I'll be cut off.

ExtraTerrestrial Apes
ExtraTerrestria...
Joined: 10 Nov 04
Posts: 770
Credit: 577290218
RAC: 193975

RE: Running double

Quote:
Running double precision (as required) your GT 430 would not be faster than a single CPU core.. which applies to almost any GPU with 512 MB of VRAM or less.


I have to correct myself here: in the mean time I learned that the bulk of computations is still single precision, so it would be too early to rule cards out due to low double precision performance.

MrS

Scanning for our furry friends since Jan 2002

Jeroen
Jeroen
Joined: 25 Nov 05
Posts: 379
Credit: 740030628
RAC: 0

RE: Thanks for reporting.

Quote:

Thanks for reporting. The next build of the Beta app should have this fixed, I hope that this will be issued on Monday, together with a fixed Windows build.

BM

Thanks for the version 1.07 release. The tasks are running without error now. Run time is averaged at 574 seconds via a 7970. GPU load is in the range of 63-78% when the GPU is being used. So far the tasks that have completed are pending validation. My system is currently running driver 14.3.

Jeroen
Jeroen
Joined: 25 Nov 05
Posts: 379
Credit: 740030628
RAC: 0

I started up the new

I started up the new application on my GTX 780 Ti in Windows 64-bit. So far, the tasks are completing successfully. Five tasks have validated and the rest of the tasks are pending. The average run time of completed tasks so far is 664 seconds. GPU load ranges from 84-99%.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.