Skip to content

Install notes: compilers, CUDA, corporate indexes

The Install step (uv sync --extra test) is enough on most machines. These notes cover the cases where it is not.

Some of the compiled dependencies need gcc 12 or later. On RHEL-family hosts:

Terminal window
sudo yum install gcc-toolset-12 gcc-toolset-14 ninja-build -y # once, if gcc < 12
scl enable gcc-toolset-12 bash

Builds behind a corporate package index, or with CUDA

Section titled “Builds behind a corporate package index, or with CUDA”
Terminal window
# export UV_DEFAULT_INDEX=https://proxy.example.com/repository/pypi-all/simple
uv cache clean
MAX_JOBS=4 UV_HTTP_TIMEOUT=60s TORCH_CUDA_ARCH_LIST="8.6" uv sync --extra test # be patient

MAX_JOBS limits parallel compilation. TORCH_CUDA_ARCH_LIST should match your GPU. Neither is needed for a CPU-only install from the public index.

The web UI includes a JSON Schema derived from the ontology. If the ai-atlas-nexus package has been upgraded (or you are unsure), rebuild the schema. The path below works for any version:

Terminal window
SCHEMA="$(uv run python -c 'import ai_atlas_nexus, pathlib; print(pathlib.Path(ai_atlas_nexus.__file__).parent / "ai_risk_ontology" / "schema" / "ai-risk-ontology.yaml")')"
uv run gen-json-schema --stacktrace --preserve-names --mergeimports "$SCHEMA" > lib/frontend/static/schema/ai-risk-ontology.json

lib/frontend/static/mylogo.png is the logo the web UI serves. Replace it to rebrand the UI. .assets/mylogo.png is the example logo for a bring-your-own-data identity, and the UI does not read it.