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[CuTe DSL] libs-base and libs-cu13 4.4.x ship divergent _cutlass_ir.so for the same path; libs-base emits malformed _mma PTX for SM120 mxf4nvf4 mma

Status: Open.

#3170 In NVIDIA/cutlass;

· alexbi29 opened on Apr 15, 2026

[QST]About data regarding h100 in FP8 is inaccurate.

? - Needs Triage

questionQuestionQuestion

Status: Open.

#3168 In NVIDIA/cutlass;

· hjq0127 opened on Apr 15, 2026

[QST] Stream-K / Split-K for block-scaled (NVFP4/MXFP4) GEMM on SM100 — hardware limitation or not yet implemented?

? - Needs Triage

questionQuestionQuestion

Status: Open.

#3167 In NVIDIA/cutlass;

· ShawRong opened on Apr 14, 2026

[BUG] CUTLASS_NVCC_ARCHS_SUPPORTED has wrong values leading to compilation failure

? - Needs Triage

bugSomething isn't workingSomething isn't working

CUTLASS C++

Status: Open.

#3164 In NVIDIA/cutlass;

· irshadcc opened on Apr 12, 2026

[BUG] Quack Persistent Cache Multi-Process Segfault

? - Needs Triage

bugSomething isn't workingSomething isn't working

CuTe DSL

Status: Open.

#3162 In NVIDIA/cutlass;

· yinghai opened on Apr 11, 2026

[CuTeDSL] tiled_copy partition_D/partition_S incorrect on swizzled ComposedLayout with multi-K iteration (CPY_K>1)

Status: Open.

#3160 In NVIDIA/cutlass;

· Xin-Jing-11 opened on Apr 10, 2026

[CuTeDSL] make_tiled_mma SIGABRTs on hierarchical rank-3 atom_layout_mnk

Status: Open.

#3159 In NVIDIA/cutlass;

· Xin-Jing-11 opened on Apr 10, 2026

[FEA] Feature Request: Support disable-output-lane mask in CuTe DSL MMA operations

? - Needs Triage

CuTe DSL

feature requestNew feature or requestNew feature or request

Status: Open.

#3158 In NVIDIA/cutlass;

· icavan opened on Apr 10, 2026

[QST]How to make_tiled_copy for C layout after permutation?

? - Needs Triage

questionQuestionQuestion

Status: Open.

#3147 In NVIDIA/cutlass;

· zhang110112110 opened on Apr 5, 2026

[BUG] StageCountAutoCarveout assumes max family SMEM, breaks SM121 (99 KiB vs SM120 228 KiB)

Status: Open.

#3144 In NVIDIA/cutlass;

· mihai-chiorean opened on Apr 2, 2026

[BUG] Unexpected SystemExit: nvidia_cutlass_dsl/python_packages/cutlass/base_dsl/dsl.py(911): diagnostic

? - Needs Triage

bugSomething isn't workingSomething isn't working

CuTe DSL

Status: Open.

#3142 In NVIDIA/cutlass;

· oleksandr-pavlyk opened on Apr 1, 2026

[FEA] Add Snake activation functor for Epilogue Visitor Tree (EVT)

? - Needs Triage

CUTLASS C++

feature requestNew feature or requestNew feature or request

Status: Open.

#3141 In NVIDIA/cutlass;

· emre570 opened on Apr 1, 2026