v4.3.1 update. (#2817)

This commit is contained in:
Junkai-Wu
2025-11-27 09:49:30 -05:00
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parent 2052fd3885
commit 1de3a576cc
44 changed files with 3316 additions and 510 deletions
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![ALT](./media/images/gemm-hierarchy-with-epilogue-no-labels.png "Complete CUDA GEMM decomposition")
# Overview
# CUTLASS 4.3.0
# CUTLASS 4.3.1
_CUTLASS 4.3.0 - Nov 2025_
_CUTLASS 4.3.1 - Nov 2025_
CUTLASS is a collection of abstractions for implementing high-performance matrix-matrix multiplication (GEMM)
and related computations at all levels and scales within CUDA. It incorporates strategies for
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- Added fake tensor and stream to decouple compile jit function with "from_dlpack" flow. Now we no longer require users to have real tensor when compile jit function.
- Added FastDivmodDivisor with Python operator overloads, new APIs, Cute dialect integration, and optimized static tile scheduler performance for faster index mapping.
- Added l2 cache evict priority for tma related ops. Users could do fine-grain l2 cache control.
- Added Blackwell SM103 support.
- Multiple dependent DSOs in the wheel have been merged into one single DSO.
* Debuggability improvements:
- Supported source location tracking for DSL APIs (Allow tools like ``nsight`` profiling to correlate perf metrics with Python source code)
- Supported dumping PTX and CUBIN code: [Hello World Example](https://github.com/NVIDIA/cutlass/blob/main/examples/python/CuTeDSL/notebooks/hello_world.ipynb)
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- Fixed TensorSSA.__getitem__ indexing to match CuTe's indexing convention
- Fixed an issue with cutlass.max and cutlass.min
- Fixed an issue with mark_compact_shape_dynamic
- Fixed device reset issue with tvm-ffi
- Fixed tvm-ffi export compiled function
## CUTLASS C++
* Further enhance Blackwell SM100 Attention kernels in [example 77](https://github.com/NVIDIA/cutlass/tree/main/examples/77_blackwell_fmha/).