[QST] :NCxHWx interleaved conv weight layout uses CxRSKx instead of KCxRSx
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Description
Hi CUTLASS team,
I’m looking at the NCxHWx interleaved convolution path and noticed that the weight layout is described/used as CxRSKx rather than KCxRSx.
Intuitively, KxRSCx seems like it would provide more contiguous access for the weight, which could improve memory coalescing and cache behavior. However, CUTLASS uses CxRSKx for this case.
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Research direction
Start by locating the NCxHWx interleaved convolution implementation and its weight-layout definitions. Compare the documented and used CxRSKx ordering with the proposed KCxRSx or KxRSCx ordering; done means determining whether the current layout is intentional and resolving the question through the relevant implementation or documentation.
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Assessment
- Tech stack
- cpp
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100