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Raistmer
Adept II

C-60 APU Loveland. What wavefront size in reality?

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There are discrepance still between what CodeXL thinks about Loveland and what clInfo reports:

CodeXL: Wavefront size: 64

clInfo under 14.12 Omega drivers:  Kernel Preferred work group size multiple:     32

Who to trust?

I asked same question many months ago. Answer was if I recall correctly - 64. But 14.12 Omega is newer... and still 32. So, have to ask again...

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amitbm
Staff
Staff

Re: C-60 APU Loveland. What wavefront size in reality?

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The Wavefront size for Loveland is 64.

View solution in original post

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dipak
Staff
Staff

Re: C-60 APU Loveland. What wavefront size in reality?

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I've asked someone from CodeXL team about this discrepancy. Will get back to you shortly.

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amitbm
Staff
Staff

Re: C-60 APU Loveland. What wavefront size in reality?

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The Wavefront size for Loveland is 64.

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Raistmer
Adept II

Re: C-60 APU Loveland. What wavefront size in reality?

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Please  explain why :

Kernel Preferred work group size multiple:     32

What parameter inside this APU makes workgroup multiple of 32 preferable over wavefront size of 64 ?

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