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nix-builder: add back Torch 2.10-2.12 for CUDA - #904

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danieldk merged 2 commits into
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old-cuda-torches
Oct 16, 2026
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danieldk merged 2 commits into
mainfrom
old-cuda-torches

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@danieldk

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Since eval times have been optimized a lot over the past few weeks and the most expensive kernel builds have moved to the stable ABI, I think we can add back support for old Torch versions for those kernels that haven't moved to the stable ABI yet.

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The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

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github-actions Bot commented Oct 15, 2026 •

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Coverage report — kernels/

Measured on: Python 3.10 / Torch 2.13.0.
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: 87.8% — threshold: 80% — ✅

Per-file breakdown
Name Stmts Miss Cover Missing
src/kernels/__init__.py 14 0 100%
src/kernels/_system.py 6 1 83% 10
src/kernels/_versions.py 130 14 89% 53, 59-60, 63-64, 102, 165-170, 199, 219
src/kernels/archs.py 56 1 98% 94
src/kernels/backends.py 215 63 71% 42, 46, 50-53, 70, 92, 110, 119, 123, 127-129, 150, 159, 163, 167-169, 190, 201, 203, 210-213, 222, 226, 230-255, 263, 286-306
src/kernels/compat.py 9 1 89% 5
src/kernels/deps.py 70 1 99% 56
src/kernels/hf_hub.py 63 2 97% 21, 23
src/kernels/importer.py 44 5 89% 80, 84, 87, 101-102
src/kernels/install.py 21 7 67% 76-100
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 85 6 93% 90, 115, 191, 311, 338, 368
src/kernels/layer/globals.py 5 0 100%
src/kernels/layer/kernelize.py 82 8 90% 259, 297, 305-306, 312, 316, 332-334
src/kernels/layer/layer.py 309 15 95% 211, 258, 285, 416, 556-557, 578, 586, 597, 637, 641, 654, 708, 738, 813
src/kernels/layer/mode.py 14 0 100%
src/kernels/layer/repos.py 144 42 71% 27, 33, 36-43, 63-64, 70, 73-76, 90, 94, 103-104, 110, 113-116, 123-124, 130, 133-136, 143-144, 150, 153-156, 163-164, 170, 173-176, 257
src/kernels/load.py 71 2 97% 338, 378
src/kernels/locking.py 89 64 28% 35-83, 91-98, 102-125, 137, 152-159, 165-175, 179-186
src/kernels/python_deps.py 58 6 90% 59-60, 64-65, 101, 104
src/kernels/resolver.py 162 1 99% 248
src/kernels/status.py 50 2 96% 25, 79
src/kernels/validate.py 88 5 94% 9, 100, 167, 190-191
src/kernels/variants.py 278 17 94% 65, 96, 117, 147, 256-257, 299-302, 304, 388-394, 400-406, 455-461
src/kernels/verify.py 127 6 95% 46, 202-204, 318-319
TOTAL 2347 287 88%

Updated by the Test kernels workflow on commit 507e99024c4086fc144b85097dd61dfbbd67f29a.

@danieldk
danieldk marked this pull request as ready for review October 15, 2026 12:56

@sayakpaul sayakpaul left a comment

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Sweet! Doesn't need to be this PR but do we want to document our strategy of supporting PyTorch versions a bit?

@drbh drbh left a comment

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lgtm!

@danieldk
danieldk merged commit f6bd904 into main Oct 16, 2026
50 of 52 checks passed
@danieldk
danieldk deleted the old-cuda-torches branch October 16, 2026 08:13
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4 participants