diff -urN WRF.orig/arch/configure.defaults WRF/arch/configure.defaults --- WRF.orig/arch/configure.defaults 2022-09-23 12:37:42.557201377 +0000 +++ WRF/arch/configure.defaults 2022-09-23 12:45:39.128887527 +0000 @@ -308,8 +308,8 @@ SFC = ifort SCC = icc CCOMP = icc -DM_FC = mpiifort -DM_CC = mpiicc +DM_FC = mpif90 -f90=$(SFC) +DM_CC = mpicc FC = CONFIGURE_FC CC = CONFIGURE_CC LD = $(FC)