Adding CMake support

CMakeLists.txt

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+################################################################################
+#
+# CMakeLists.txt
+# 
+# Author: Anthony Cabrera:
+# Contact: cabreraam AT ieee DOT org
+# Description: CMakeLists.txt replacement for SNAP Makefile
+#
+################################################################################
+
+cmake_minimum_required(VERSION 3.18)
+
+project(snap_test)
+
+# Direct CMake to a specific MPI implementation. Specify
+# -DMPI_EXECUTABLE_SUFFIX=.mpich for MPICH MPI implementation 
+set(MPI_EXECUTABLE_SUFFIX "" CACHE STRING "Direct CMake to a specific MPI implementation")
+
+enable_language(Fortran)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
+add_subdirectory(src)

src/CMakeLists.txt

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+################################################################################
+#
+# CMakeLists.txt
+# 
+# Author: Anthony Cabrera:
+# Contact: cabreraam AT ieee DOT org
+# Description: CMakeLists.txt replacement for SNAP Makefile
+#
+################################################################################
+
+################################################################################
+#
+# Options and Variables
+#
+################################################################################
+
+
+option(MPI "Use MPI" OFF)
+option(OPT "Turn on optimizations" ON)
+option(OPENMP "Enable OpenMP" OFF)
+option(KNL "Intel KNL target" OFF)
+option(HASWELL "Does the CPU use the Haswell u-arch" OFF)
+option(CRAY "Is the target system a Cray?" OFF)
+
+if(MPI)
+	find_package(MPI REQUIRED)
+	message(STATUS "MPI_Fortran_COMPILER - ${MPI_Fortran_COMPILER}")
+	message(STATUS "MPI_Fortran_COMPILE_OPTIONS - ${MPI_Fortran_COMPILE_OPTIONS}")
+	message(STATUS "MPI_Fortran_COMPILE_DEFINITIONS - ${MPI_Fortran_COMPILE_DEFINITIONS}")
+	message(STATUS "MPI_Fortran_INCLUDE_DIRS - ${MPI_Fortran_INCLUDE_DIRS}")
+	message(STATUS "MPI_Fortran_LINK_FLAGS - ${MPI_Fortran_LINK_FLAGS}")
+	message(STATUS "MPI_Fortran_LIB_NAMES - ${MPI_Fortran_LIB_NAMES}")
+	message(STATUS "MPI_Fortran_LIBRARY - ${MPI_Fortran_LIBRARY}")
+	message(STATUS "MPI_Fortran_LIBRARIES - ${MPI_Fortran_LIBRARIES}")
+endif()
+
+if(OPENMP)
+	find_package(OpenMP REQUIRED)
+	message(STATUS "OpenMP_VERSION - ${OpenMP_VERSION}")
+	message(STATUS "OpenMP_Fortran_FOUND - ${OpenMP_Fortran_COMPILE_OPTIONS}")
+	message(STATUS "OpenMP_Fortran_FLAGS - ${OpenMP_Fortran_COMPILE_DEFINITIONS}")
+	message(STATUS "OpenMP_Fortran_INCLUDE_DIRS - ${OpenMP_Fortran_INCLUDE_DIRS}")
+	message(STATUS "OpenMP_Fortran_LINK_FLAGS - ${OpenMP_Fortran_LINK_FLAGS}")
+	message(STATUS "OpenMP_Fortran_LIB_NAMES - ${OpenMP_Fortran_LIB_NAMES}")
+	message(STATUS "OpenMP_Fortran_LIBRARY - ${OpenMP_Fortran_LIBRARY}")
+	message(STATUS "OpenMP_Fortran_LIBRARIES - ${OpenMP_Fortran_LIBRARIES}")
+	message(STATUS "OpenMP_HOME - ${OpenMP_HOME}")
+endif()
+
+# Compiler Preprocessor Definitions
+# These should be passed in at the command line as a semi-colon-separated list
+# If the developer wants MPI, it would be set here
+# e.g., MPI + other pound define --> -DUSER_DEFS="MPI;OTHER_VAR;OTHER_VAR2=1"
+set(USER_DEFS "" CACHE STRING "Semi-colon separted preprocessor pound defines")
+
+
+################################################################################
+#
+# Compile Options for Different Compilers
+#
+################################################################################
+
+# Compile Options for GNU
+set(SNAP_COMPILER_OPTIONS_GNU_OPT
+	"-O3" 
+	CACHE 
+	STRING 
+	"GNU compiler options when OPT=ON"
+)
+set(SNAP_COMPILER_OPTIONS_GNU_NOT_OPT
+	"-O0"
+	"-g"
+	"-fbounds-check"
+	"-fbacktrace"
+	CACHE 
+	STRING 
+	"GNU compiler options when OPT=OFF"
+)
+set(SNAP_COMPILER_OPTIONS_GNU
+	$<$<BOOL:${OPENMP}>:-fopenmp>
+	$<IF:$<BOOL:${OPT}>,${SNAP_COMPILER_OPTIONS_GNU_OPT},${SNAP_COMPILER_OPTIONS_GNU_NOT_OPT}>
+	CACHE
+	STRING
+	"Compiler options when GNU compiler detected"
+)
+
+# Compile Options for ifort 
+set(SNAP_COMPILER_OPTIONS_IFORT_OPT
+	"-O3"
+	"-ip"
+	"-align array32byte"
+	"-qno-opt-dynamic-align"
+	"-fno-fnalias"
+	"-fp-model fast"
+	"-fp-speculation fast"
+	CACHE 
+	STRING 
+	"ifort compiler options when OPT=ON"
+)
+set(SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT
+	"-O0"
+	"-g "
+	"-check bounds"
+	"-traceback"
+	"-warn unused"
+	CACHE 
+	STRING 
+	"ifort compiler options when OPT=OFF"
+)
+set(SNAP_COMPILER_OPTIONS_IFORT
+	$<$<BOOL:${OPENMP}>:-qopenmp>
+	$<IF:$<BOOL:${OPT}>,${SNAP_COMPILER_OPTIONS_IFORT_OPT},${SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT}>
+	$<IF:$<BOOL:${HASWELL}>,"-xcore-avx2","-xHost">
+	CACHE
+	STRING
+	"Compiler options when ifort compiler detected"
+)
+
+# Compile Options for ifort knl
+set(SNAP_COMPILER_OPTIONS_IFORT_KNL_OPT
+	"-O3"
+	"-xmic-avx512"
+	"-ip"
+	"-align array64byte"
+	"-qno-opt-dynamic-align"
+	"-fp-model fast"
+	"-fp-speculation fast"
+	"-fno-alias -fno-fnalias"
+	CACHE 
+	STRING 
+	"ifort compiler options when OPT=ON and KNL=ON"
+)
+# This is the same as SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT
+#set(SNAP_COMPILER_OPTIONS_IFORT_KNL_NOT_OPT
+#)
+set(SNAP_COMPILER_OPTIONS_IFORT_KNL
+	$<$<BOOL:${OPENMP}>:-qopenmp>
+	$<IF:$<BOOL:${OPT}>,${SNAP_COMPILER_OPTIONS_IFORT_KNL_OPT},${SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT}>
+	CACHE
+	STRING
+	"Compiler options when ifort + knl compiler detected"
+)
+
+# Compile Options for intel ifx
+set(SNAP_COMPILER_OPTIONS_IFX_OPT
+	"-xcore-avx2"
+	"-Ofast"
+	"-funroll-loops"
+	"-nostandard-realloc-lhs"
+	"-align array32byte"
+	CACHE 
+	STRING 
+	"ifx compiler options when OPT=ON"
+)
+# This is the same as SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT
+#set(SNAP_COMPILER_OPTIONS_IFX_OPT
+#)
+set(SNAP_COMPILER_OPTIONS_IFX
+	$<$<BOOL:${OPENMP}>:-fiopenmp>
+	$<IF:$<BOOL:${OPT}>,${SNAP_COMPILER_OPTIONS_IFX_OPT},${SNAP_COMPILER_OPTIONS_INTEL_NOT_OPT}>
+	CACHE
+	STRING
+	"Compiler options when ifx compiler detected"
+)
+
+################################################################################
+#
+# Setting up build target
+#
+################################################################################
+
+set(SNAP_SOURCE_FILES
+	global.f90
+	snap_main.f90
+	utils.f90
+	version.f90
+	plib.F90
+	geom.f90
+	sn.f90
+	data.f90
+	control.f90
+	input.f90
+	setup.f90
+	dealloc.f90
+	translv.f90
+	solvar.f90
+	outer.f90
+	expxs.f90
+	inner.f90
+	sweep.f90
+	octsweep.f90
+	dim1_sweep.f90
+	dim3_sweep.f90
+	output.f90
+	time.F90
+	mms.f90
+	analyze.f90
+	thrd_comm.f90
+	mkba_sweep.f90
+	CACHE
+	STRING
+	"List of SNAP source files"
+)
+
+# Handle files that need to be proprocessed, i.e., files with .F90 and NOT .f90
+set(SNAP_SOURCE_FILES_TO_PREPROC ${SNAP_SOURCE_FILES})
+list(FILTER SNAP_SOURCE_FILES_TO_PREPROC INCLUDE REGEX .*\.F90)
+set(SNAP_SOURCE_FILES_TO_PREPROC 
+	${SNAP_SOURCE_FILES_TO_PREPROC}
+	CACHE
+	STRING
+	"List of SNAP source files to preprocess"
+)
+set_source_files_properties(
+	${SNAP_SOURCE_FILES_TO_PREPROC}
+	PROPERTIES
+		Fortran_PREPROCESS ON
+)
+
+add_executable(snap)
+target_sources(snap
+	PRIVATE
+		${SNAP_SOURCE_FILES}
+)
+
+target_compile_options(snap 
+	PRIVATE
+		$<$<Fortran_COMPILER_ID:GNU>:${SNAP_COMPILER_OPTIONS_GNU}>
+		$<$<AND:$<Fortran_COMPILER_ID:Intel>,$<NOT:$<BOOL:${KNL}>>>:${SNAP_COMPILER_OPTIONS_IFORT}>
+		$<$<AND:$<Fortran_COMPILER_ID:Intel>,$<BOOL:${KNL}>>:${SNAP_COMPILER_OPTIONS_IFORT_KNL}>
+		$<$<Fortran_COMPILER_ID:IntelLLVM>:${SNAP_COMPILER_OPTIONS_IFX}>
+)
+target_compile_definitions(snap
+	PRIVATE
+		${USER_DEFS}
+		$<$<AND:$<BOOL:${MPI}>,$<BOOL:${CRAY}>>:MPI>
+		$<$<BOOL:${OPENMP}>:OPENMP>
+)
+# -I$(MPICH_DIR)/include
+target_include_directories(snap
+	PRIVATE
+		$<$<AND:$<BOOL:${MPI}>,$<BOOL:${CRAY}>>:${MPI_Fortran_INCLUDE_DIRS}>
+		$<$<BOOL:${OPENMP}>:${OpenMP_Fortran_INCLUDE_DIRS}>
+)
+target_link_libraries(snap
+	PRIVATE
+		$<$<AND:$<BOOL:${MPI}>,$<BOOL:${CRAY}>>:MPI::MPI_Fortran>
+		$<$<BOOL:${OPENMP}>:${OpenMP_Fortran_LIBRARIES}>
+)
+
+# create line counting functionality
+add_custom_target(
+	count
+	DEPENDS
+		Lines
+)
+
+add_custom_command(
+	OUTPUT
+		src_list.txt
+	DEPENDS
+		${SNAP_SOURCE_FILES}
+	COMMAND
+		cmake -E touch ${CMAKE_CURRENT_BINARY_DIR}/src_list.txt
+	COMMAND
+		echo ${SNAP_SOURCE_FILES} > ${CMAKE_CURRENT_BINARY_DIR}/src_list.txt
+	COMMENT
+		"Generate source file list lines of code"
+	VERBATIM
+)
+add_custom_command(
+	OUTPUT
+		Lines
+	DEPENDS
+		src_list.txt
+	COMMAND
+		cmake -E copy 
+			${CMAKE_CURRENT_SOURCE_DIR}/LineCount	
+			${CMAKE_CURRENT_BINARY_DIR}/LineCount
+	COMMAND
+		cmake -E copy 
+			${CMAKE_CURRENT_SOURCE_DIR}/LineReport	
+			${CMAKE_CURRENT_BINARY_DIR}/LineReport
+	COMMAND
+		cmake -E remove ${CMAKE_CURRENT_BINARY_DIR}/Lines
+	COMMAND
+		cmake -E touch ${CMAKE_CURRENT_BINARY_DIR}/Lines
+	COMMAND
+		cmake -E cat ${CMAKE_CURRENT_BINARY_DIR}/src_list.txt
+	COMMAND
+		bash -c "while read line; do \
+			for file in $line; do \
+				${CMAKE_CURRENT_BINARY_DIR}/LineCount ${CMAKE_CURRENT_SOURCE_DIR}/$file	${CMAKE_CURRENT_BINARY_DIR}/Lines; \
+			done; \
+		done < '${CMAKE_CURRENT_BINARY_DIR}/src_list.txt'" 
+	COMMAND
+		awk -f ${CMAKE_CURRENT_BINARY_DIR}/LineReport < ${CMAKE_CURRENT_BINARY_DIR}/Lines >> ${CMAKE_CURRENT_BINARY_DIR}/Lines
+	COMMAND
+		cmake -E cat ${CMAKE_CURRENT_BINARY_DIR}/Lines
+	COMMAND
+		cmake -E remove ${CMAKE_CURRENT_BINARY_DIR}/src_list.txt
+	VERBATIM
+)