Use install_conda.sh

Author: huydhn

.ci/docker/common/install_conda.sh

@@ -31,8 +31,12 @@ install_miniconda() {
 
 install_python() {
   pushd /opt/conda
-  # Install the correct Python version
-  as_ci_user conda create -n "py_${PYTHON_VERSION}" -y --file /opt/conda/conda-env-ci.txt python="${PYTHON_VERSION}"
+  # Install the select Python version for CI jobs. Conda mkl is needed to build PyTorch
+  # from source for optimal performance on x86 CPU
+  as_ci_user conda create -n "py_${PYTHON_VERSION}" -y --file /opt/conda/conda-env-ci.txt \
+    python="${PYTHON_VERSION}" \
+    mkl=2021.4.0 \
+    mkl-include=2021.4.0
   popd
 }
 

.ci/docker/conda-env-ci.txt

@@ -3,5 +3,3 @@ ninja=1.10.2
 libuv
 llvm-openmp
 pkg-config
-mkl=2021.4.0
-mkl-include=2021.4.0