project6-dev f32ef97013 feat(MoE): verified CUDA topk_softmax kernel — zero fallback
moe_topk_softmax_v3.cu: BI-V100 verified (2026-08-10)
  - 64 experts, topk=8, warp shuffle, zero shared memory
  - renormalize: sum=1.0 ✓, no NaN ✓, no duplicate ids ✓
  - 881 token batch ✓
  - Compiler: corex clang/16, --cuda-gpu-arch=ivcore10
  - Stream: c10::cuda::getCurrentCUDAStream()

corex_moe.py: loads CUDA kernel, NO Python fallback
  - Searches pre-compiled .so → JIT compile from source → error
  - MoE pipeline: CUDA topk → cublas expert GEMM → ixformer silu_and_mul

precompile_moe_topk.py: Docker build-time compilation + verification

Key finding from real machine probing:
  ixformer::infer::topk_softmax is DECLARED in ixformer.h but
  NOT IMPLEMENTED in any .so in the base image (nm -D scan: zero hits).
  Must compile our own kernel.
2026-08-10 04:21:43 +00:00
2026-08-07 08:43:51 +00:00
2026-07-30 17:03:23 +08:00
2026-08-07 07:47:01 +00:00

project_6

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