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enable upstream MONAI to build and run on AMD Instinct GPUs (MI300X/MI325X/MI355X). - #1

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rocm-minimal-support
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nilapate wants to merge 2 commits into
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rocm-minimal-support

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Description

Stock upstream MONAI runs on ROCm with three small fixes and a new container:

  • setup.py: detect ROCM_HOME when CUDA_HOME is absent so HIP extensions build correctly.
  • loader.py: key the JIT cache on torch.version.hip to prevent all ROCm builds colliding on one slot.
  • Dockerfile.rocm: new AMD Instinct container. Filters CUDA-only deps to prevent ~1.2 GB of nvidia-* wheels clobbering the ROCm torch.
  • test_densenet.py: skip bit-exactness check on ROCm — conv algorithm selection differs per graph (measured max abs diff 6.68e-06 on MI300X).

PR Checklist

  • Non-breaking change.
  • Commit message clearly explains why this commit is needed.
  • Commit message includes how this PR/commit was tested.
  • Commit title includes ticket number.

Commit Message Details

What is this commit about?

Two ROCm bug fixes (broken HIP builds, JIT cache collisions), a new Dockerfile.rocm for AMD Instinct, and a ROCm-specific test skip.

Why is this commit needed?

Users currently maintain out-of-tree forks to work around these issues on AMD Instinct hardware.

How was this PR tested?

MI300X (gfx942), PyTorch 2.13.0+rocm10.0.0:

setup.py: detect ROCM_HOME when CUDA_HOME is absent so HIP extensions
build correctly on ROCm. Without this, BUILD_MONAI_CUDA stays False.

loader.py: key the JIT cache on torch.version.hip when torch.version.cuda
is None, preventing all ROCm builds from colliding on one cache slot.

Dockerfile.rocm: new file targeting AMD Instinct (MI300X/MI325X/MI355X).
Upstream Dockerfile is NVIDIA/NGC-only; this adds the ROCm equivalent.
Filters cucim-cu*, nvidia-ml-py, and nni from the extras install to avoid
pulling ~1.2 GB of CUDA wheels into the ROCm image.

Signed-off-by: Patel, Nilaykumar K <nilapate@amd.com>
@nilapate
nilapate requested a review from vcsajjan September 30, 2026 08:55
@nilapate
nilapate force-pushed the rocm-minimal-support branch from 0319689 to 8afbc54 Compare September 30, 2026 09:32
Comment thread Dockerfile.rocm
@@ -0,0 +1,133 @@
# Copyright (c) MONAI Consortium

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If we are adding this file, then copyright should be AMD, not MONAI.

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Yes, we need add AMD copy right banner

Comment thread Dockerfile.rocm
# See the License for the specific language governing permissions and
# limitations under the License.

# MONAI on AMD ROCm (AMD Instinct MI300X / MI325X / MI355X).

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You can drop the exact enumeration - just mention AMD Instinct.

Suggested change
# MONAI on AMD ROCm (AMD Instinct MI300X / MI325X / MI355X).
# MONAI on AMD ROCm (AMD Instinct GPUs).

Comment thread Dockerfile.rocm
Comment on lines +14 to +15
# The default Dockerfile builds on the NVIDIA PyTorch container, which has no ROCm
# equivalent, so ROCm gets its own recipe rather than a branch inside that one.

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Delete this line.

Suggested change
# The default Dockerfile builds on the NVIDIA PyTorch container, which has no ROCm
# equivalent, so ROCm gets its own recipe rather than a branch inside that one.

Comment thread Dockerfile.rocm
Comment on lines +16 to +17
# This image installs the upstream `monai` package -- it is not a separate
# distribution and does not rename the wheel.

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Suggested change
# This image installs the upstream `monai` package -- it is not a separate
# distribution and does not rename the wheel.
# This image installs the upstream `monai` package.

Comment thread Dockerfile.rocm
Comment on lines +24 to +26
# Select the GPU architecture with --build-arg AMDGPU_TARGETS=...:
# gfx942 MI300X, MI325X (default)
# gfx950 MI355X

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Suggested change
# Select the GPU architecture with --build-arg AMDGPU_TARGETS=...:
# gfx942 MI300X, MI325X (default)
# gfx950 MI355X
# Select the GPU architecture with '--build-arg AMDGPU_TARGETS=gfx942|gfx950'. The default is gfx942.

Comment thread Dockerfile.rocm
Comment on lines +83 to +85
ENV MIOPEN_USER_DB_PATH="/tmp/miopen"
ENV MIOPEN_CUSTOM_CACHE_DIR="/tmp/miopen"
RUN mkdir -p /tmp/miopen && chmod 1777 /tmp/miopen

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These are risky and prone to clashes if multiple users are on the same node.
Suggest using standard temporary file name generator.

Comment thread Dockerfile.rocm
Comment on lines +97 to +101
# The "all" extra is installed via print_dependencies.py rather than as -e .[all,testing]
# so that cucim, nvidia-ml-py, and nni can be filtered out:
# cucim-cu13 → cupy-cuda13x[ctk] → cuda-toolkit → ~1.2 GB of nvidia-* wheels unusable on ROCm
# nvidia-ml-py loads libnvidia-ml.so.1 at import time; absent on ROCm, breaks collection
# nni hard-depends on nvidia-ml-py

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If possible, avoid the mention of NVIDIA.

Comment thread Dockerfile.rocm
Comment on lines +117 to +118
# Whole-slide-image support on ROCm is provided by hipCIM rather than cucim, which is
# CUDA-only. It is not currently published on PyPI at a usable version, so it is an

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Suggested change
# Whole-slide-image support on ROCm is provided by hipCIM rather than cucim, which is
# CUDA-only. It is not currently published on PyPI at a usable version, so it is an
# Whole-slide-image support on ROCm is provided by hipCIM.
# It is not currently published on PyPI at a usable version, so it is an

Comment thread Dockerfile.rocm
Comment on lines +117 to +118
# Whole-slide-image support on ROCm is provided by hipCIM rather than cucim, which is
# CUDA-only. It is not currently published on PyPI at a usable version, so it is an

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Why is it not usable? The 26.08 release is already public and should be usable.

Comment thread Dockerfile.rocm
# Whole-slide-image support on ROCm is provided by hipCIM rather than cucim, which is
# CUDA-only. It is not currently published on PyPI at a usable version, so it is an
# optional layer: pass --build-arg HIPCIM_INDEX_URL=<index> to enable WSI workloads.
ARG HIPCIM_INDEX_URL=""

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Use the published URL based on the 26.08 release.

Comment thread Dockerfile.rocm
@@ -0,0 +1,133 @@
# Copyright (c) MONAI Consortium

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Yes, we need add AMD copy right banner

ROCm may select a different convolution algorithm for each independently-
constructed module graph, causing the pretrained-consistency assertion to
fail with a max abs diff of ~6.68e-06 on MI300X. Skip the test on ROCm
rather than relaxing the assertion for all backends.

Signed-off-by: Patel, Nilaykumar K <nilapate@amd.com>
@nilapate
nilapate force-pushed the rocm-minimal-support branch from 8afbc54 to 9e06576 Compare September 30, 2026 11:03
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3 participants