Forum > Alternate Hardware platforms
OSX Multibeam OpenCL question
Joe Fox:
--- Quote from: Urs Echternacht on 11 Oct 2014, 10:14:57 am ---The "reference_work_unit.sah" in the "test_workunits" directory seems to be an old v6 workunit without autocorr-signal detection. Instead, try to use "refquick.wu" or "reftiny.wu" from "DynWUs" directory for quick testing.
--- End quote ---
I don't see those files inside of DynWUs. I only have the following:
PG0009.wu
PG0395.wu
PG0444.wu
PG1327.wu
init_data.xml
PG0009_v7.wu
PG0395_v7.wu
PG0444_v7.wu
PG1327_v7.wu
Any advice?
-Joe
Joe Fox:
Here is what I found with using one of the DynWUs.
I used "PG1327_v7.wu"
and got the attached results.
Elapsed time was 6 minutes and seconds 37
How can I test the results for accuracy?
Thanks
-Joe
Raistmer:
list of defines I used in windows build:
OCL_CHIRP3;USE_OPENCL;ATI_OS_WIN;SETI7;USE_FFTW;WIN32;_WIN32;_MT;NDEBUG;_WINDOWS;CLIENT;_CONSOLE;USE_I386_OPTIMIZATIONS;USE_I386_XEON;USE_SSE;USE_AMD
OCL_CHIRP3 is required for best precision, USE_FFTW - for CPU FFT when needed, SETI7 as Urs already described required too.
Urs Echternacht:
In lunatics Downloads you will find some Tools, like more testworkunits and a benchmark-script for "Terminal" usage. That benchmark-package contains another tool for result comparison (rescmp4_d, d for Darwin) That comparison tool you could use also standalone if you have two results to compare (e.g. result_a.sah, result_b.sah).
If you start the comparison tool without arguments you get some howto use.
Joe Fox:
One interesting thing that I have found in my testing of the new builds. Only the build with USE_OPENCL_INTEL works correctly, regardless of the video card manufacturer used for the mac. I have tested on a new Mac Pro with dual AMD D700s, a MacBook Pro with an Intel Iris, and an older MacBook Pro with an nvidia. The USE_OPENCL_HD5xxx build would fail to compike the .cl files, and the USE_OPENCL_NV build would fail with the original error I ran in to (CL error -49). My conclusion is that the macs are using intel opencl drivers. Does this seem reasonable?
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