OpenCL for Nvidia available for testing
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Matt Arsenault
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Message 44588 - Posted: 3 Dec 2010, 2:07:51 UTC
Last modified: 8 Dec 2010, 7:20:57 UTC

The OpenCL application for Nvidia GPUs is ready for testing for Windows and Linux x86_64. I'm particularly interested in the performance / responsiveness tradeoff on mid-low range GPUs.

Many thanks to cncguru for donating his GTX 480. If I hadn't had it, it would be about 30% slower than it is.

http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48_x86_64-pc-linux-gnu__cuda_opencl.tar.gz
http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48_windows_intelx86__cuda_opencl.zip

Extract these to the project directory. On Windows this is something like C:\ProgramData\BOINC\projects\milkyway.cs.rpi.edu_milkyway
On Ubuntu for me, this is /var/lib/boinc-client/projects/milkyway.cs.rpi.edu_milkyway

Minor update:
http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48.1_windows_intelx86__cuda_opencl.zip
http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48.1_x86_64-pc-linux-gnu__cuda_opencl.tar.gz

Another minor update:
http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48.2_windows_intelx86__cuda_opencl.zip
http://milkyway.cs.rpi.edu/milkyway/download/test/milkyway_separation_0.48.2_x86_64-pc-linux-gnu__cuda_opencl.tar.gz

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Message 44590 - Posted: 3 Dec 2010, 2:39:10 UTC

@ Matt - do you have a link for the download or will it download automatically as a stock app?

-Mike
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Message 44591 - Posted: 3 Dec 2010, 2:42:52 UTC - in response to Message 44590.

@ Matt - do you have a link for the download or will it download automatically as a stock app?
You have to manually download from the links I posted. I'm not putting it up as stock yet. I think the server still needs to be updated for that to happen, and I want to hear if the system responsiveness is a problem on some lower end GPUs.

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Message 44592 - Posted: 3 Dec 2010, 4:01:27 UTC

I just installed it on my GTX460 host and will see what it does on there.
http://milkyway.cs.rpi.edu/milkyway/results.php?hostid=179088
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Message 44604 - Posted: 3 Dec 2010, 10:47:58 UTC
Last modified: 3 Dec 2010, 10:49:23 UTC

Just tried to run that version on my GTX260.
But I only get WUs that error out immediately like this one.
Do I need something else for it to run?
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Message 44606 - Posted: 3 Dec 2010, 12:15:01 UTC

I just downloaded and installed it. Fails immediate. Is there anything more to do?
win7-64, nVidia 460. Forceware 259.19, BM 6.10.58
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Message 44607 - Posted: 3 Dec 2010, 14:51:36 UTC

Hello,

Me it works, for cons I see only one unit in my stats that are validated and any error in or pending?!

when I returned well over a ....
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Message 44608 - Posted: 3 Dec 2010, 16:24:46 UTC

Thanks a lot, Matt :-) I'll try it later 2day on ubuntu x64.
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Message 44609 - Posted: 3 Dec 2010, 16:25:17 UTC

If I remember correctly, you will need at least a 26x.00 driver to use the openCL app.

Upgrade to the newest and see if it runs correctly.
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Message 44611 - Posted: 3 Dec 2010, 16:59:02 UTC

BTW, Matt, can I run OpenCL app on GTX275 and which driver's and CUDA versions I need? I've got 195.30 and cuda 2.3
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Message 44612 - Posted: 3 Dec 2010, 17:04:39 UTC - in response to Message 44609.

If I remember correctly, you will need at least a 26x.00 driver to use the openCL app.

Upgrade to the newest and see if it runs correctly.


Good idea ...
THX, seems running now.

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Message 44613 - Posted: 3 Dec 2010, 17:06:12 UTC - in response to Message 44611.

BTW, Matt, can I run OpenCL app on GTX275 and which driver's and CUDA versions I need? I've got 195.30 and cuda 2.3
The minimum driver which is supposed to work is 197.13, but I've only actually tested with the latest drivers.

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Message 44614 - Posted: 3 Dec 2010, 17:06:59 UTC - in response to Message 44611.

BTW, Matt, can I run OpenCL app on GTX275 and which driver's and CUDA versions I need? I've got 195.30 and cuda 2.3


http://www.nvidia.com/object/linux-display-amd64-260.19.21-driver.html
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Message 44615 - Posted: 3 Dec 2010, 17:10:59 UTC

Thansk, guys :-)

The only thing - I tested that on GPUGRID and there cuda 2.3 is way faster then codu 3.0 and just faster then 3.1... But NP, I'll try latest drivers...
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Message 44616 - Posted: 3 Dec 2010, 17:15:37 UTC - in response to Message 44604.

Just tried to run that version on my GTX260.
But I only get WUs that error out immediately like this one.
Do I need something else for it to run?
The workunit is gone now, so I can't tell.

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Message 44617 - Posted: 3 Dec 2010, 17:18:09 UTC - in response to Message 44588.

Is anyone running it in a system with both ATI and Nvidia drivers installed? I just realized a hypothetical problem that might happen.

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Message 44618 - Posted: 3 Dec 2010, 17:21:46 UTC
Last modified: 3 Dec 2010, 17:27:25 UTC

ok, I understand - I have to move to CUDA 3.0 at least.

The latest driver (260.19.21) is on CUDA 3.2, so I think it's necessary to get cudatoolkit 3.2 from here
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Message 44619 - Posted: 3 Dec 2010, 17:22:51 UTC

Why in the stats on the project account, the stats of these test units do not stay posted?
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Message 44620 - Posted: 3 Dec 2010, 17:43:12 UTC - in response to Message 44609.

If I remember correctly, you will need at least a 26x.00 driver to use the openCL app.

Upgrading the driver did the trick, you were right on this. I had a version beneath 260.x. Thanx for that hint!
The WUs are running fine now. :-)
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Message 44621 - Posted: 3 Dec 2010, 17:46:29 UTC - in response to Message 44619.

Why in the stats on the project account, the stats of these test units do not stay posted?
I don't know. I consistently have a problem with this.

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