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feat: enable cutlass 4.5 on nix builder#665

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danieldk merged 2 commits into
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feat/cutlass4_5
Jun 23, 2026
Merged

feat: enable cutlass 4.5 on nix builder#665
danieldk merged 2 commits into
mainfrom
feat/cutlass4_5

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@mfuntowicz

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This PR attempts to enable more recent version of cutlass, v4.5.2 in this case, to support more recent architecture and dispatching like SM120

@mfuntowicz mfuntowicz requested a review from danieldk June 18, 2026 12:18
Comment thread nix-builder/pkgs/cutlass/default.nix
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Coverage report — kernels/

Measured on: Python 3.10 / Torch 2.12.0.
Other CI configurations are not included in this number.
Hardware-gated code paths (ROCm/XPU/NPU/Darwin/Windows) are excluded or unreachable on the Linux+CUDA runner.

Total coverage: 84.4% — threshold: 80% — ✅

Per-file breakdown
Name Stmts Miss Cover Missing
src/kernels/__init__.py 10 0 100%
src/kernels/_system.py 6 1 83% 10
src/kernels/_versions.py 63 7 89% 46, 49, 52-53, 56-57, 100
src/kernels/backends.py 194 55 72% 40, 44, 48-51, 68, 90, 108, 117, 121, 125-127, 148, 170, 181, 188-191, 201, 205-225, 233, 256-276
src/kernels/compat.py 8 1 88% 5
src/kernels/deps.py 54 4 93% 58-59, 95, 98
src/kernels/layer/__init__.py 6 0 100%
src/kernels/layer/_interval_tree.py 103 4 96% 23, 52, 147, 150
src/kernels/layer/device.py 48 14 71% 42, 47-49, 91, 96-98, 101, 149, 152, 155-157
src/kernels/layer/func.py 93 7 92% 72, 100, 154, 257, 263, 272, 290
src/kernels/layer/globals.py 5 0 100%
src/kernels/layer/kernelize.py 73 8 89% 255, 273, 281-282, 288, 292, 308-310
src/kernels/layer/layer.py 174 15 91% 166, 209, 215, 228, 320-321, 333, 342, 350, 361, 390, 394, 407, 460, 490
src/kernels/layer/mode.py 14 0 100%
src/kernels/layer/repos.py 130 34 74% 27, 33, 36-41, 61-62, 68, 71-74, 88, 92, 101-102, 108, 111-114, 121-122, 128, 131-134, 141-142, 148, 151-154, 235
src/kernels/lockfile.py 71 46 35% 37-104, 108-131
src/kernels/status.py 49 2 96% 23, 81
src/kernels/utils.py 301 55 82% 65, 77-81, 87-88, 218, 222, 225, 287, 295, 334-335, 373, 404, 409, 444, 673, 676, 678, 684, 697-698, 719-731, 735-742, 750, 754-764, 768-775, 813, 817, 836, 838
src/kernels/variants.py 262 19 93% 56, 87, 108, 138, 247-248, 289, 291, 371-378, 384-390, 421-427, 439-445, 534-536
src/kernels/verify.py 88 1 99% 32
TOTAL 1752 273 84%

Updated by the Test kernels workflow on commit ffeb6251497cad86753d7a17af244e62636ddf0f.

@danieldk danieldk left a comment

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Thanks a lot!

@danieldk danieldk merged commit 0aad0b2 into main Jun 23, 2026
54 checks passed
@danieldk danieldk deleted the feat/cutlass4_5 branch June 23, 2026 09:35
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2 participants