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Anthony Waters

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Message 36034 - Posted: 25 Jan 2010, 2:16:36 UTC
Last modified: 25 Jan 2010, 5:11:08 UTC

CUDA 0.25 has been released for 64 bit GNU/Linux, the Windows version will follow once all of the new functionality is verified to be working correctly.

Changes:
Implemented the ability to read the project specific preference for the number of allowed concurrent blocks. The default value is 128 and allows for very little interface lag at the expense of longer running times. A value of 20000 and above will cut the execution time by as much as 2 minutes, but resulting in noticeable user interface lag.

Performance improvements through the use of manual loop unrolling, generating about a 5% increase in performance.

Made the final likelihood calculation more parallel, resulting in a decrease of about 3 seconds in execution time.

General code cleanup.

http://milkyway.cs.rpi.edu/milkyway/download/code_release/mw_gpu_v0.25.tar.gz
http://milkyway.cs.rpi.edu/milkyway/download/code_release/mw_gpu_v0.25.zip

The latest work units, ps_s222_pes_1_ are taking around 9 minutes with the NVIDIA GeForce GTX 285 and with the allowed concurrent blocks set to 40000. The GPU isn't connected to the display so no lag is witnessed by me.

Edit: It appears to be returning invalid results therefore it has been temporarily deprecated.
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Emanuel

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Message 36221 - Posted: 2 Feb 2010, 18:23:10 UTC - in response to Message 36034.  

Edit: It appears to be returning invalid results therefore it has been temporarily deprecated.

Any word on this?
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Anthony Waters

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Message 36244 - Posted: 3 Feb 2010, 23:14:43 UTC - in response to Message 36221.  
Last modified: 4 Feb 2010, 0:44:22 UTC

Edit: It appears to be returning invalid results therefore it has been temporarily deprecated.

Any word on this?


A lot of the code was modified to make it faster so I'm tracking down the issue currently.

Edit:
The issue was identified and the application is going through QA at the moment.
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f4c3m3l70r
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Message 40568 - Posted: 21 Jun 2010, 8:16:22 UTC - in response to Message 36034.  

When will there be the 0.25 build available for Windows?
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Norman_RKN

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Message 40636 - Posted: 24 Jun 2010, 19:36:47 UTC - in response to Message 40568.  

news about cuda 0.25 for windows ?
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