[New release] BRP app v1.23/1.24 (OpenCL) feedback thread

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
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Topic 84835

Hi,

We just released BRP4 v1.23 for ATI OpenCL under Linux and Windows which adds a number of improvements.

Notes:
* Now handles work units compatible with those on Einstein@Home (previously workunits on Albert were tweaked to work around a limitation in the OpenCL code)
* OpenCL GPU memory usage reduced
* modest performance improvement
* minor bug fixes
* better selection of work group size for kernels

* Known issue: no OpenCL support for Mac OS X for the time being (we're still looking into a potential Apple bug)

* Please use the latest Catalyst driver (>=12.1) and BOINC client (>=7.0.26). Note that this BOINC version is still a development version (but fixes some OpenGL related problems), it can be downloaded from here:

http://boinc.berkeley.edu/dl/

Without updating to this BOINC version, you will not be able to get OpenCL work on Albert!

Let's try and collect your feedback to this specific release (and this one only) in this thread.

Thanks,
Heinz-Bernd

TRuEQ & TuVaLu
TRuEQ & TuVaLu
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[New release] BRP app v1.23/1.24 (OpenCL) feedback thread

I made an answer in another thread that also migth be in here.

http://albertathome.org/goto/comment/79150

Infusioned
Infusioned
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GPU load is steady at 20-21%,

Message 79178 in response to message 79177

GPU load is steady at 20-21%, and CPU load literally bounces: 5%,15%,6%,14%,4%,17%, etc. with 17 being the highest I've seen.

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
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Thanks for the feedback. We

Message 79179 in response to message 79178

Thanks for the feedback.

We would also be interested to hear about graphics RAM usage, especially when crunching workunits that were generated beginning from 28th of May.

Cheers
HBE

Infusioned
Infusioned
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RE: Thanks for the

Message 79180 in response to message 79179

Quote:


Thanks for the feedback.

We would also be interested to hear about graphics RAM usage, especially when crunching workunits that were generated beginning from 28th of May.

Cheers
HBE

March? April? Or May of last year?

wu 4/29/2012 9:29:59 AM | Albert@Home | Starting task p2030.20110421.G41.06+00.53.N.b6s0g0.00000_3728_0 using einsteinbinary_BRP4 version 123 (atiOpenCL) in slot 0

Infusioned
Infusioned
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Also, is there a way to make

Message 79181 in response to message 79180

Also, is there a way to make them thumbnails in my post and when you click them they link to larger images (just to not annoy people with really large images)?

steffen_moeller
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HD 5670, 1GB RAM, Windows 7

Message 79182 in response to message 79179

HD 5670, 1GB RAM, Windows 7 Home, Catalyst version 12.4
uses 521 MB, 50 MB dynamic, load 90%, temperature 71.5 deg. Celsius
http://albertathome.org/task/198490

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
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Hi Thanks again for the

Message 79183 in response to message 79182

Hi

Thanks again for the feedback.

Oops...I meant workunits generated on 28th of April, not May :-)

Cheers
HB

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
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One more thing: while the

Message 79184 in response to message 79183

One more thing: while the workunit mentioned above was sent only recently, it was generated already on the 23rd of April, so it is still one of the "tweaked" workunits. Once the newly generated workunits are reached out, we should see a reduced memory usage and some modest performance increase.

Cheers
HB

steffen_moeller
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RE: One more thing: while

Message 79185 in response to message 79184

Quote:
One more thing: while the workunit mentioned above was sent only recently, it was generated already on the 23rd of April, so it is still one of the "tweaked" workunits. Once the newly generated workunits are reached out, we should see a reduced memory usage and some modest performance increase.

Does this mean we are 5 community-days late with processing? If so, I suggest to just stop everything from being sent that does not bring additional insights. Hm, thinking again, you have certainly done that and I was just too quick when I read the announcement. Ah, wait, you expect an impact on the performance also from the tweaking, so you need to have the same new app performed both on tweaked and regular workunits ?!?

Steffen

Infusioned
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RE: One more thing: while

Message 79186 in response to message 79184

Quote:

One more thing: while the workunit mentioned above was sent only recently, it was generated already on the 23rd of April, so it is still one of the "tweaked" workunits. Once the newly generated workunits are reached out, we should see a reduced memory usage and some modest performance increase.

Cheers
HB

I was afraid of that. However, I didn't know how to decipher what date p2030.20110421.G41.06+00.53.N.b6s0g0.00000_3728_0 ... Never mind, I just realized that 20110421 means April 21, 2011.

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