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zhuzxy
Journeyman III

Is the 32k local mem per CU or per device?

the AMD a8-3850 has 32K local mem, does that belongs to a CU? (that means total 160K total since it has 5 CU)

And another question, how can I get teh wavefronts number from appprofiler or other tool? If not possible, what's the right way?

 

Thanks 

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rick_weber
Adept II

Is the 32k local mem per CU or per device?

The number returned by clDeviceInfo should be per CU.

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genaganna
Journeyman III

Is the 32k local mem per CU or per device?

Originally posted by: zhuzxy the AMD a8-3850 has 32K local mem, does that belongs to a CU? (that means total 160K total since it has 5 CU)

Yes it is per CU and total is 160K per A8-3850.

 

And another question, how can I get teh wavefronts number from appprofiler or other tool? If not possible, what's the right way?

 

1. You get clGetKernelWorkGroupInfo(..., CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE, ...)

2. You can calculate from profiler counters GlobalWorkSize and Wavefronts.

 

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