| 1 | #!/bin/bash |
| 2 | # SPDX-License-Identifier: Apache-2.0 |
| 3 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 4 | |
| 5 | set -euo pipefail |
| 6 | |
| 7 | if python3 -c "import torch; raise SystemExit(0 if torch.version.hip is not None else 1)"; then |
| 8 | uv pip install --system -r /vllm-workspace/requirements/kv_connectors_rocm.txt |
| 9 | exit 0 |
| 10 | fi |
| 11 | |
| 12 | # Select requirements before optional packages can change the installed Torch. |
| 13 | CUDA_MAJOR=$(python3 -c 'import torch; print(torch.version.cuda.split(".", 1)[0])') |
| 14 | DEFAULT_REQUIREMENTS=/vllm-workspace/requirements/kv_connectors.txt |
| 15 | if [ "${CUDA_MAJOR}" = "12" ]; then |
| 16 | DEFAULT_REQUIREMENTS=/vllm-workspace/requirements/kv_connectors_cu12.txt |
| 17 | fi |
| 18 | REQUIREMENTS_FILE="${KV_CONNECTORS_REQUIREMENTS:-${DEFAULT_REQUIREMENTS}}" |
| 19 | |
| 20 | CONSTRAINTS_DIR=$(mktemp -d) |
| 21 | trap 'rm -rf "${CONSTRAINTS_DIR}"' EXIT |
| 22 | uv pip freeze --system > "${CONSTRAINTS_DIR}/installed.txt" |
| 23 | grep -E '^(torch|torchaudio|torchvision|triton|cuda-bindings|cuda-python|cuda-toolkit)==' \ |
| 24 | "${CONSTRAINTS_DIR}/installed.txt" > "${CONSTRAINTS_DIR}/constraints.txt" |
| 25 | uv pip install --system -c "${CONSTRAINTS_DIR}/constraints.txt" -r "${REQUIREMENTS_FILE}" |
| 26 | |
| 27 | KV_METADATA=$(python3 - <<'PY' |
| 28 | import importlib.metadata as metadata |
| 29 | |
| 30 | import torch |
| 31 | |
| 32 | cuda_version = torch.version.cuda |
| 33 | if cuda_version is None: |
| 34 | raise SystemExit("torch.version.cuda is not set") |
| 35 | |
| 36 | try: |
| 37 | mooncake_version = metadata.version("mooncake-transfer-engine") |
| 38 | except metadata.PackageNotFoundError: |
| 39 | mooncake_version = "" |
| 40 | |
| 41 | print(cuda_version.split(".", 1)[0], metadata.version("nixl"), mooncake_version) |
| 42 | PY |
| 43 | ) |
| 44 | read -r CUDA_MAJOR NIXL_VERSION MOONCAKE_VERSION <<<"${KV_METADATA}" |
| 45 | MOONCAKE_VERSION="${MOONCAKE_VERSION:-}" |
| 46 | |
| 47 | # nixl>=1.1.0 can install multiple CUDA wheel variants. Keep only the variant |
| 48 | # matching this CI image so nixl_ep_cpp links against the available libcudart. |
| 49 | uv pip uninstall --system nixl-cu12 nixl-cu13 2>/dev/null || true |
| 50 | uv pip install --system --no-deps "nixl-cu${CUDA_MAJOR}==${NIXL_VERSION}" |
| 51 | |
| 52 | python3 - <<'PY' |
| 53 | import importlib.metadata as metadata |
| 54 | |
| 55 | for package_name in ("nixl", "nixl-cu12", "nixl-cu13"): |
| 56 | try: |
| 57 | version = metadata.version(package_name) |
| 58 | except metadata.PackageNotFoundError: |
| 59 | version = "not installed" |
| 60 | print(f"{package_name}: {version}") |
| 61 | PY |
| 62 | |
| 63 | # The default mooncake-transfer-engine PyPI wheel is built against CUDA 12; its |
| 64 | # engine.so links libcudart.so.12, absent from the CUDA 13 runtime image. On a |
| 65 | # CUDA 13 image, swap it for the cuda13 variant (same version), which links |
| 66 | # libcudart.so.13. Both expose the `mooncake` package, so uninstall the CUDA 12 |
| 67 | # build first to avoid a clash. |
| 68 | if [ "${CUDA_MAJOR}" = "13" ] && [ -n "${MOONCAKE_VERSION}" ]; then |
| 69 | uv pip uninstall --system mooncake-transfer-engine 2>/dev/null || true |
| 70 | uv pip install --system -c "${CONSTRAINTS_DIR}/constraints.txt" "mooncake-transfer-engine-cuda13==${MOONCAKE_VERSION}" |
| 71 | fi |