Use cc on Perlmutter (#161)

Dr. Tang fixed a compilation issue in NERSC CI where HDF5 cannot be detected even if the cray-parallel-hdf5 module is loaded on Perlmultter.

Author: houjun

.gitlab-ci.yml

@@ -22,7 +22,7 @@ perlmutter-build:
         - module list
         - mkdir -p ${PDC_BUILD_PATH}/perlmutter
         - cd ${PDC_BUILD_PATH}/perlmutter
-        - cmake ../.. -DBUILD_MPI_TESTING=ON -DBUILD_SHARED_LIBS=ON -DPDC_SERVER_CACHE=ON -DBUILD_TESTING=ON -DCMAKE_INSTALL_PREFIX=$PDC_DIR -DPDC_ENABLE_MPI=ON -DMERCURY_DIR=$MERCURY_DIR -DCMAKE_C_COMPILER=mpicc -DMPI_RUN_CMD="srun -A m2621 --qos=debug --constraint=cpu --tasks-per-node=64" -DCMAKE_INSTALL_PREFIX=${PDC_INSTALL_PATH}/perlmutter
+        - cmake ../.. -DBUILD_MPI_TESTING=ON -DBUILD_SHARED_LIBS=ON -DPDC_SERVER_CACHE=ON -DBUILD_TESTING=ON -DCMAKE_INSTALL_PREFIX=$PDC_DIR -DPDC_ENABLE_MPI=ON -DMERCURY_DIR=$MERCURY_DIR -DCMAKE_C_COMPILER=cc -DMPI_RUN_CMD="srun -A m2621 --qos=debug --constraint=cpu --tasks-per-node=64" -DCMAKE_INSTALL_PREFIX=${PDC_INSTALL_PATH}/perlmutter
         - make -j
         - make install
     artifacts: