scikit-learn · lesteve · Jun 26, 2025 · Jun 23, 2025 · Jun 23, 2025 · Jun 23, 2025
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -253,9 +253,9 @@ jobs:
         not(contains(dependencies['git_commit']['outputs']['commit.message'], '[ci skip]'))
       )
     matrix:
-      pymin_conda_forge_mkl:
+      pymin_conda_forge_openblas:
         DISTRIB: 'conda'
-        LOCK_FILE: ./build_tools/azure/pymin_conda_forge_mkl_win-64_conda.lock
+        LOCK_FILE: ./build_tools/azure/pymin_conda_forge_openblas_win-64_conda.lock
         SKLEARN_WARNINGS_AS_ERRORS: '1'
         # The Azure Windows runner is typically much slower than other CI
         # runners due to the lack of compiler cache. Running the tests with

diff --git a/...ure/pymin_conda_forge_mkl_environment.yml → ...ymin_conda_forge_openblas_environment.yml b/...ure/pymin_conda_forge_mkl_environment.yml → ...ymin_conda_forge_openblas_environment.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
   - python=3.10
   - numpy
-  - blas[build=mkl]
+  - blas[build=openblas]
   - scipy
   - cython
   - joblib

diff --git a/...e/pymin_conda_forge_mkl_win-64_conda.lock → ...in_conda_forge_openblas_win-64_conda.lock b/...e/pymin_conda_forge_mkl_win-64_conda.lock → ...in_conda_forge_openblas_win-64_conda.lock
@@ -1,27 +1,25 @@
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-# input_hash: cc5e2a711eb32773dc46fe159e1c3fe14f4fd07565fc8d3dedf2d748d4f2f694
+# input_hash: 4ff41dadb8a7a77d0b784bfc6b32126b8e1a41c8b9a87375b48c18c9aee4ea2a
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-https://conda.anaconda.org/conda-forge/win-64/blas-2.131-mkl.conda#1842bfaa4e349875c47bde1d9871bda6
-https://conda.anaconda.org/conda-forge/win-64/matplotlib-base-3.10.3-py310h37e0a56_0.conda#de9ddae6f97b78860c256de480ea1a84
 https://conda.anaconda.org/conda-forge/win-64/pyside6-6.9.1-py310h2d19612_0.conda#01b830c0fd6ca7ab03c85a008a6f4a2d
 https://conda.anaconda.org/conda-forge/win-64/matplotlib-3.10.3-py310h5588dad_0.conda#103adee33db124a0263d0b4551e232e3
diff --git a/build_tools/azure/windows.yml b/build_tools/azure/windows.yml
@@ -27,6 +27,22 @@ jobs:
     - bash: python build_tools/azure/get_selected_tests.py
       displayName: Check selected tests for all random seeds
       condition: eq(variables['Build.Reason'], 'PullRequest')
+    - task: PowerShell@2
+      displayName: 'Get CPU Information'
+      inputs:
+        targetType: 'inline'
+        script: |
+          Write-Host "=== CPU Information ==="
+          $cpu = Get-WmiObject -Class Win32_Processor
+          Write-Host "CPU Model: $($cpu.Name)"
+          Write-Host "Architecture: $($cpu.Architecture)"
+          Write-Host "Physical Cores: $($cpu.NumberOfCores)"
+          Write-Host "Logical Processors: $($cpu.NumberOfLogicalProcessors)"
+          Write-Host "Max Clock Speed: $($cpu.MaxClockSpeed) MHz"
+          Write-Host "Current Clock Speed: $($cpu.CurrentClockSpeed) MHz"
+          Write-Host "L2 Cache Size: $($cpu.L2CacheSize) KB"
+          Write-Host "L3 Cache Size: $($cpu.L3CacheSize) KB"
+          Write-Host "==========================="
     - bash: echo "##vso[task.prependpath]$CONDA/Scripts"
       displayName: Add conda to PATH
       condition: startsWith(variables['DISTRIB'], 'conda')

diff --git a/build_tools/update_environments_and_lock_files.py b/build_tools/update_environments_and_lock_files.py
@@ -284,7 +284,7 @@ def remove_from(alist, to_remove):
         ],
     },
     {
-        "name": "pymin_conda_forge_mkl",
+        "name": "pymin_conda_forge_openblas",
         "type": "conda",
         "tag": "main-ci",
         "folder": "build_tools/azure",
@@ -297,7 +297,7 @@ def remove_from(alist, to_remove):
         ],
         "package_constraints": {
             "python": "3.10",
-            "blas": "[build=mkl]",
+            "blas": "[build=openblas]",
         },
     },
     {