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c8a89a4d9f
## Summary The test was using LDS distribution to create the accumulator tile, but CShuffleEpilogue expects the GEMM accumulator distribution that BlockGemm produces. This mismatch caused incorrect data permutation. ## Changes - Use WarpGemmDispatcher to get correct accumulator distribution encoding - Load test input from host-initialized global memory for deterministic verification - Shard tests by data type (FP16, FP8) with gfx950-specific FP8 tests - Extract scale tests into separate target for better organization - Implement exact permutation verification (all unique values appear once) - Reduce tile size from 256x256 to 128x128 to fit in unique fp16 range - Add parameterized test configurations for various warp layouts and MFMA types ## Test plan - [x] Run new cshuffle epilogue tests 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> --------- Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>