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leofangclaude
leofang
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claude
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Alternate half of linux arm64 CI runners from a100 to l4 (#1956)
Change every other arm64 entry in the pull-request test matrix to use l4 GPU instead of a100, giving a 50/50 split (9 a100, 9 l4) in an alternating pattern. This reduces pressure on a100 runners while maintaining arm64 coverage across all Python and CUDA version combinations. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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‎ci/test-matrix.yml‎

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# SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-FileCopyrightText: Copyright (c) 2024-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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#
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# Test matrix configurations for CUDA Python CI workflows. This file consolidates
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# the test matrices that were previously hardcoded in the workflow files. All GPU
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# and ARCH values are hard-coded for each architecture: l4 GPU for amd64, a100 GPU
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# for arm64.
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# and ARCH values are hard-coded for each architecture: various GPUs for amd64,
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# alternating a100/l4 for arm64.
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#
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# Please keep the matrices sorted in ascending order by the following:
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#
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- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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# linux-aarch64
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- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.2.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.2.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
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# special runners
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- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '1', DRIVER: 'latest' }
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- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.2.1', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '1', DRIVER: 'latest' }

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