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in OpenCL formats find_best_workgroup() should start from 32 for GPU's #12
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Isn't 32 nvidia specific, and even specific to current GPUs (as opposed to possible future models)? Is there a particular reason for not using CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE? I do not know but I suspect the latter would currently return 32 for nvidia and 64 for AMD. |
kholia
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kholia
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This was referenced Apr 27, 2015
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if(device_type==CL_DEVICE_TYPE_GPU) my_work_group=32;
for (; (int) my_work_group <= (int) max_group_size;
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