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#
# Generic Toolchain for OS X + MPI + MKL + TBB
#
# REQUIREMENTS:
# - in PATH:
# mpicc and mpicxx, both using clang as the backend
#
# OPTIONS:
# - environment variables:
# * MKLROOT: the MKL root directory; if not set, will use /opt/intel/mkl
# * TBBROOT: the TBB root directory; if not set, will use /opt/intel/tbb
#
# Compilers
set(CMAKE_C_COMPILER clang)
set(CMAKE_CXX_COMPILER clang++)
set(MPI_C_COMPILER mpicc)
set(MPI_CXX_COMPILER mpicxx)
# Compile flags
set(CMAKE_C_FLAGS_INIT "-std=c99" CACHE STRING "Inital C compile flags")
set(CMAKE_C_FLAGS_DEBUG "-g -Wall" CACHE STRING "Inital C debug compile flags")
set(CMAKE_C_FLAGS_MINSIZEREL "-Os -march=native -DNDEBUG" CACHE STRING "Inital C minimum size release compile flags")
set(CMAKE_C_FLAGS_RELEASE "-O3 -march=native -DNDEBUG" CACHE STRING "Inital C release compile flags")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -Wall" CACHE STRING "Inital C release with debug info compile flags")
set(CMAKE_CXX_FLAGS_INIT "-std=c++11 -stdlib=libc++" CACHE STRING "Inital C++ compile flags")
set(CMAKE_CXX_FLAGS_DEBUG "-g -Wall" CACHE STRING "Inital C++ debug compile flags")
set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -march=native -DNDEBUG" CACHE STRING "Inital C++ minimum size release compile flags")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -DNDEBUG" CACHE STRING "Inital C++ release compile flags")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -Wall" CACHE STRING "Inital C++ release with debug info compile flags")
# Libraries
if(EXISTS $ENV{MKLROOT})
set(MKL_ROOT_DIR "$ENV{MKLROOT}" CACHE PATH "MKL root directory")
else()
set(MKL_ROOT_DIR "/opt/intel/mkl" CACHE PATH "MKL root directory")
endif()
if(EXISTS $ENV{TBBROOT})
set(TBB_ROOT_DIR "$ENV{TBBROOT}" CACHE PATH "TBB root directory")
else()
set(TBB_ROOT_DIR "/opt/intel/tbb" CACHE PATH "TBB root directory")
endif()
# Flags
set(LAPACK_LIBRARIES "-L${MKL_ROOT_DIR}/lib" "-lmkl_intel_lp64" "-lmkl_core"
"-lmkl_sequential" "-lm" CACHE STRING "LAPACK linker flags")
set(INTEGER4 TRUE CACHE BOOL "Set Fortran integer size to 4 bytes")
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