set(CMAKE_C_COMPILER "/usr/bin/clang" CACHE PATH "")
set(CMAKE_CXX_COMPILER "/usr/bin/clang++" CACHE PATH "")

set(ENABLE_MPI ON CACHE BOOL "")
set(MPI_C_COMPILER "/home/ubuntu/openmpi3_custom/bin/mpicc" CACHE PATH "")
set(MPI_CXX_COMPILER "/home/ubuntu/openmpi3_custom/bin/mpicxx" CACHE PATH "")
