v4.3.3 update. (#2868)

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Junkai-Wu
2025-12-11 00:26:58 -05:00
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parent 49bd6bf1ba
commit d3a5492381
24 changed files with 789 additions and 211 deletions
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![ALT](./media/images/gemm-hierarchy-with-epilogue-no-labels.png "Complete CUDA GEMM decomposition")
# Overview
# CUTLASS 4.3.2
# CUTLASS 4.3.3
_CUTLASS 4.3.2 - Dec 2025_
_CUTLASS 4.3.3 - Dec 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 Blackwell SM103 support.
- Multiple dependent DSOs in the wheel have been merged into one single DSO.
- New env var `CUTE_DSL_CACHE_DIR` to specify the path for dumping caches.
- Supported namedtuple and kwargs for JIT function arguments in tvm-ffi.
- Supported variadic tuples for JIT function argument in tvm-ffi.
* 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 tvm-ffi export compiled function
- Fixed an issue of CUDA JitExecutor when unloading kernels
- Fixed an issue of allocating max smem when there's statically allocated smem
- Fixed an issue when JIT function argument with union type annotation for tvm-ffi
- Clearer error message for the case of runtime error cudaErrorInsufficientDriver
## CUTLASS C++
* Further enhance Blackwell SM100 Attention kernels in [example 77](https://github.com/NVIDIA/cutlass/tree/main/examples/77_blackwell_fmha/).