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build: fix the blackwell dockerfile #84

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2b5fa83
build: fix the blackwell dockerfile
jandom Jan 7, 2026
da12523
working example of blackwell running without docker
jandom Jan 9, 2026
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27 changes: 20 additions & 7 deletions docker/Build_instructions_blackwell.md
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Expand Up @@ -12,21 +12,34 @@ This will create a Docker image named `openfold-3-blackwell` with the `latest` t
## test Pytorch and CUDA

```bash
docker run --gpus all --ipc=host --ulimit memlock=-1 --ulimit stack=67108864 openfold-3-blackwell:latest python -c "import torch; print('CUDA:', torch.version.cuda); print('PyTorch:', torch.__version__)"
docker run \
--gpus all \
--ipc=host \
--ulimit memlock=-1 \
openfold-3-blackwell:latest \
python -c "import torch; print('CUDA:', torch.version.cuda); print('PyTorch:', torch.__version__)"
```

Should print something like:
CUDA: 12.8
PyTorch: 2.7.0a0+ecf3bae40a.nv25.02

```
CUDA: 13.1
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@jandom jandom Jan 8, 2026

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This is important: with CUDA 12.9+ we get sm121 support out of the box

PyTorch: 2.10.0a0+b4e4ee81d3.nv25.12
```

## test run_openfold inference example

docker run --gpus all -it --ipc=host --ulimit memlock=-1 \
-v $(pwd):/output \
```bash
docker run \
--gpus all -it \
--ipc=host \
--ulimit memlock=-1 \
-v /home/jandom/.openfold3:/root/.openfold3 \
-v $(pwd)/output:/output \
-w /output openfold-3-blackwell:latest \
run_openfold predict \
--query_json=/opt/openfold-3/examples/example_inference_inputs/query_ubiquitin.json \
--query_json=/opt/openfold3/examples/example_inference_inputs/query_ubiquitin.json \
--num_diffusion_samples=1 \
--num_model_seeds=1 \
--use_templates=false
--use_templates=false
```
56 changes: 22 additions & 34 deletions docker/Dockerfile.blackwell
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@@ -1,5 +1,5 @@
# Simple OpenFold3 Dockerfile using NVIDIA PyTorch container
FROM nvcr.io/nvidia/pytorch:25.02-py3
FROM nvcr.io/nvidia/pytorch:25.12-py3

# Install system dependencies
RUN apt-get update && apt-get install -y \
Expand All @@ -13,15 +13,21 @@ RUN apt-get update && apt-get install -y \
libxft2 \
&& rm -rf /var/lib/apt/lists/*

# Clone OpenFold3 source and modify environment file
# Install CUTLASS for DeepSpeed Evoformer attention kernel
# We need only the headers for DeepSpeed JIT, don't need the pip package with bindings
WORKDIR /opt
RUN git clone https://github.com/aqlaboratory/openfold-3.git && \
cd openfold-3 && \
cp -p environments/production-linux-64.yml environments/production.yml.backup && \
grep -v "pytorch::pytorch" environments/production.yml > environments/production.yml.tmp && \
mv environments/production.yml.tmp environments/production.yml
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@jandom jandom Jan 8, 2026

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This was completely unused: everything is installed via the system python+pip

RUN git clone https://github.com/NVIDIA/cutlass --branch v3.6.0 --depth 1

# Pre-compile DeepSpeed operations for Blackwell GPUs to avoid runtime compilation
# Create necessary cache directories
RUN python3 -c "import os; os.makedirs('/root/.triton/autotune', exist_ok=True)"
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@jandom jandom Jan 8, 2026

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This is empirically needed in my tests, which is a bit odd


WORKDIR /opt/openfold-3
# Set environment variables including CUDA architecture for Blackwell
ENV PYTHONUNBUFFERED=1 \
PYTHONDONTWRITEBYTECODE=1 \
KMP_AFFINITY=none \
CUTLASS_PATH=/opt/cutlass \
TORCH_CUDA_ARCH_LIST="12.1"
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@jandom jandom Jan 8, 2026

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I think we can still remove some of these – all of those could be provided at runtime, and are quite specific to the use case here


# Install Python dependencies
RUN pip install --no-cache-dir \
Expand All @@ -46,36 +52,18 @@ RUN pip install --no-cache-dir \
awscli \
memory_profiler \
func_timeout \
biotite==1.2.0 \
"nvidia-cutlass<4" \
"cuda-python<12.9.1"
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@jandom jandom Jan 8, 2026

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  • We get coda-python with the image, no need to duplicate that
  • We also only need the cutlass headers, no need to install the package

biotite==1.2.0

# Install CUTLASS for DeepSpeed Evoformer attention kernel
WORKDIR /opt
RUN git clone https://github.com/NVIDIA/cutlass --branch v3.6.0 --depth 1
COPY pyproject.toml /opt/openfold3/
COPY openfold3/__init__.py /opt/openfold3/openfold3/
COPY scripts/ /opt/openfold3/scripts/

# Install OpenFold3 package itself (provides run_openfold command)
WORKDIR /opt/openfold-3
RUN python3 -m pip install --editable --no-deps .

# Set environment variables including CUDA architecture for Blackwell
ENV PYTHONUNBUFFERED=1 \
PYTHONDONTWRITEBYTECODE=1 \
KMP_AFFINITY=none \
CUTLASS_PATH=/opt/cutlass \
TORCH_CUDA_ARCH_LIST="12.0"

# Pre-compile DeepSpeed operations for Blackwell GPUs to avoid runtime compilation
# Create necessary cache directories
RUN python3 -c "import os; os.makedirs('/root/.triton/autotune', exist_ok=True)"
WORKDIR /opt/openfold3
RUN python3 -m pip install --no-deps --editable .

# Create a Python sitecustomize.py to set TORCH_CUDA_ARCH_LIST before any imports
# This ensures the variable is set before PyTorch's cpp_extension checks it
RUN mkdir -p /usr/local/lib/python3.12/site-packages && \
echo 'import os' > /usr/local/lib/python3.12/site-packages/sitecustomize.py && \
echo 'os.environ.setdefault("TORCH_CUDA_ARCH_LIST", "12.0")' >> /usr/local/lib/python3.12/site-packages/sitecustomize.py && \
echo 'os.environ.setdefault("CUTLASS_PATH", "/opt/cutlass")' >> /usr/local/lib/python3.12/site-packages/sitecustomize.py && \
echo 'os.environ.setdefault("KMP_AFFINITY", "none")' >> /usr/local/lib/python3.12/site-packages/sitecustomize.py
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@jandom jandom Jan 8, 2026

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All of this can be removed

# Copy the entire source tree directly (at the very end for optimal caching)
COPY . /opt/openfold3

# Default command
CMD ["/bin/bash"]
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