Milkyway: OpenCL for Nvidia available for testing
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/..._opencl.tar.gz http://milkyway.cs.rpi.edu/milkyway/...uda_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
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Re: Milkyway: OpenCL for Nvidia available for testing
I assume a 9800 is still out of the running. :-w
Re: Milkyway: OpenCL for Nvidia available for testing
Quote:
Originally Posted by
trigggl
I assume a 9800 is still out of the running. :-w
Not sure. According to nVidia's OpenCL Programming Guide for the CUDA Architecture, Appendix A.3:
All compute devices supports the cl_khr_byte_addressable_store extension.
Devices of compute capability 1.1 and higher support the cl_khr_global_int32_base_atomics, cl_khr_global_int32_extended_atomics, cl_khr_local_int32_base_atomics, and cl_khr_local_int32_extended_atomics extensions.
Does this answer your question, I hope?
Re: Milkyway: OpenCL for Nvidia available for testing
Quote:
Originally Posted by
Fire$torm
Not sure. According to
nVidia's OpenCL Programming Guide for the CUDA Architecture, Appendix A.3:
All compute devices supports the cl_khr_byte_addressable_store extension.
Devices of compute capability 1.1 and higher support the cl_khr_global_int32_base_atomics, cl_khr_global_int32_extended_atomics, cl_khr_local_int32_base_atomics, and cl_khr_local_int32_extended_atomics extensions.
Does this answer your question, I hope?
Last I heard, you need double precision. I don't think I've got that.
Thu 02 Dec 2010 11:45:19 PM CST Milkyway@home Message from server: Your NVIDIA GPU lacks the needed compute capability (1.3, required for double precision math
Just to be sure, since I didn't realize I needed to download the new app, I installed the downloaded app, and of course I got this.
Quote:
Device doesn't support double precision
Device failed capability check
Failed to calculate integral 0
23:58:37 (24536): called boinc_finish
Re: Milkyway: OpenCL for Nvidia available for testing
You need double precision for the native apps. However, what they are referring to in that post aren't native - you need to run the app_info file to get them to work, and download the files linked to in the original post. So, I'll echo Fire$torm's resounding "maybe"...
Re: Milkyway: OpenCL for Nvidia available for testing
Quote:
Originally Posted by
Maxwell
You need double precision for the native apps. However, what they are referring to in that post aren't native - you need to run the app_info file to get them to work, and download the files linked to in the original post. So, I'll echo Fire$torm's resounding "maybe"...
See last thing I posted above. It still needs double precision
Re: Milkyway: OpenCL for Nvidia available for testing
Quote:
Originally Posted by
trigggl
Last I heard, you need double precision. I don't think I've got that.
Thu 02 Dec 2010 11:45:19 PM CST Milkyway@home Message from server: Your NVIDIA GPU lacks the needed compute capability (1.3, required for double precision math
Just to be sure, since I didn't realize I needed to download the new app, I installed the downloaded app, and of course I got this.
DUH. My error. You are correct. MilkyWay is always Double Precision. I was tired when I posted and IIRC I was thinking (Really, is that what you call it?) nVidia question = non-MW project problem.
