Revert "Upgrade cmake version to 3.22.1 to build triton (#1331)" (#1351)

* Revert "Upgrade cmake version to 3.22.1 to build triton (#1331)"

This reverts commit 18c5017.

* Selective revert

* Get cmake from pip

* Use 3.18.2 from conda

common/install_conda.sh

@@ -9,7 +9,7 @@ chmod +x  Miniconda3-latest-Linux-x86_64.sh
 bash ./Miniconda3-latest-Linux-x86_64.sh -b -p /opt/conda
 rm Miniconda3-latest-Linux-x86_64.sh
 export PATH=/opt/conda/bin:$PATH
-# cmake-3.22.1 from conda, same as the one used by PyTorch CI. The system cmake
-# is too old to build triton
-conda install -y conda-build anaconda-client git ninja cmake=3.22.1
+# The cmake version here needs to match with the minimum version of cmake
+# supported by PyTorch (3.18). There is only 3.18.2 on anaconda
+conda install -y conda-build anaconda-client git ninja cmake=3.18.2
 conda remove -y --force patchelf

manywheel/Dockerfile

@@ -21,10 +21,9 @@ RUN wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm &
     rpm -ivh epel-release-latest-7.noarch.rpm && \
     rm -f epel-release-latest-7.noarch.rpm
 
-# cmake-3.22.1 from pip, same as the one used by PyTorch CI. cmake-3.18.4 is
-# too old to build triton now
+# cmake-3.18.4 from pip
 RUN yum install -y python3-pip && \
-    python3 -mpip install cmake==3.22.1 && \
+    python3 -mpip install cmake==3.18.4 && \
     ln -s /usr/local/bin/cmake /usr/bin/cmake
 
 RUN yum install -y autoconf aclocal automake make