Switches to conda for cuda requirements

Author: purepani

.github/workflows/build_uv.yml

@@ -32,9 +32,17 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with: {fetch-depth: 0, submodules: recursive}
-    - name: Set up CUDA
-      uses: Jimver/cuda-toolkit@master
-      id: cuda-toolkit
+    - id: reqs
+      name: set conda
+      run: |
+        envname="${GITHUB_REPOSITORY##*/}-${GITHUB_RUN_ID}.${GITHUB_RUN_NUMBER}"
+        echo "envname=$envname" >> $GITHUB_OUTPUT
+    - uses: conda-incubator/setup-miniconda@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+        environment-file: scripts/requirements-cuda.yml
+        activate-environment: ${{ steps.reqs.outputs.envname }}
+        run-post: false
     - name: Install uv
       uses: astral-sh/setup-uv@v5 
       with:
@@ -44,7 +52,12 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: "Install Project"
-      run: uv sync --dev --all-extras
+      run: | 
+        conda activate
+        conda install conda-forge::cudatoolkit-dev=11.7.0
+        echo $CUDA_HOME
+        echo $CUDA_PATH
+        uv sync --dev --all-extras
     - name: test
       run: CIL_DATA_DIR=./Wrappers/Python/data uv run --dev python -m unittest discover -v -k tigre -k TIGRE -k astra -k ASTRA -k gpu -k GPU ./Wrappers/Python/test
   test:

scripts/requirements-cuda.yml

@@ -0,0 +1,20 @@
+# Copyright 2023 United Kingdom Research and Innovation
+# Copyright 2023 The University of Manchester
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#     http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# Authors:
+# CIL Developers, listed at: https://github.com/TomographicImaging/CIL/blob/master/NOTICE.txt
+name: cuda_dev
+channels:
+  - conda-forge
+  #- nvidia
+dependencies:
+  # base (vis. recipe/conda_build_config.yaml)
+  - python >=3.10