[QST]How can I implement W4A16 gemm kernel with cute api?
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Description
What is your question?
in gemm Activation*Weight = C, Activation is f16 type, Weight is int4 type, after Weight gmem->smem, i want to use mma_op = SM80_16x8x16_F16F16F16F16_TN, how can i move Weight smem int4 type to register with cute api using m16n8k16 B(type f16) matrix layout? then I can transform int4 to fp16 in register and complete gemm.
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Research direction
Start with the W4A16 GEMM question and the referenced SM80_16x8x16_F16F16F16F16_TN operation. Investigate CUTLASS CuTe handling of an int4 Weight in shared memory with the m16n8k16 B layout, including conversion to fp16 in registers. Done means a documented or working path for completing the requested GEMM.
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Assessment
- Tech stack
- cpp
- Domain
- hpc
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100