145 lines
6.2 KiB
CMake
145 lines
6.2 KiB
CMake
###################################################################################################
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# GNU Compiler
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###################################################################################################
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if (CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 8.0)
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message (FATAL_ERROR "GCC Compiler version: ${CMAKE_Fortran_COMPILER_VERSION} not supported")
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endif ()
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if (OPENMP)
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set (OPENMP_FLAGS "-fopenmp")
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endif ()
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if (OPTIMIZATION STREQUAL "OFF")
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set (OPTIMIZATION_FLAGS "-O0")
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elseif (OPTIMIZATION STREQUAL "DEFENSIVE")
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set (OPTIMIZATION_FLAGS "-O2 -mtune=generic -flto")
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elseif (OPTIMIZATION STREQUAL "AGGRESSIVE")
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set (OPTIMIZATION_FLAGS "-O3 -march=native -mtune=native -ffast-math -funroll-loops -ftree-vectorize -flto")
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endif ()
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set (STANDARD_CHECK "-std=f2018 -pedantic-errors" )
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set (LINKER_FLAGS "${LINKER_FLAGS} -Wl")
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# options parsed directly to the linker
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set (LINKER_FLAGS "${LINKER_FLAGS},-undefined,dynamic_lookup" )
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# ensure to link against dynamic libraries
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#------------------------------------------------------------------------------------------------
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# Fine tuning compilation options
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -cpp")
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# preprocessor
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -fPIC -fPIE")
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# position independent code
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -ffree-line-length-132")
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# restrict line length to the standard 132 characters (lattice.f90 require more characters)
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -fimplicit-none")
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# assume "implicit none" even if not present in source
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wall")
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# sets the following Fortran options:
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# -Waliasing: warn about possible aliasing of dummy arguments. Specifically, it warns if the same actual argument is associated with a dummy argument with "INTENT(IN)" and a dummy argument with "INTENT(OUT)" in a call with an explicit interface.
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# -Wampersand: checks if a character expression is continued proberly by an ampersand at the end of the line and at the beginning of the new line
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# -Warray-bounds: checks if array reference is out of bounds at compile time. use -fcheck-bounds to also check during runtime
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# -Wconversion: warn about implicit conversions between different type
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# -Wsurprising: warn when "suspicious" code constructs are encountered. While technically legal these usually indicate that an error has been made.
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# -Wc-binding-type:
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# -Wintrinsics-std: only standard intrisics are available, e.g. "call flush(6)" will cause an error
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# -Wno-tabs: do not allow tabs in source
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# -Wintrinsic-shadow: warn if a user-defined procedure or module procedure has the same name as an intrinsic
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# -Wline-truncation:
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# -Wtarget-lifetime:
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# -Wreal-q-constant: warn about real-literal-constants with 'q' exponent-letter
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# -Wunused: a number of unused-xxx warnings
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# and sets the general (non-Fortran options) options:
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# -Waddress
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# -Warray-bounds (only with -O2)
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# -Wc++11-compat
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# -Wchar-subscripts
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# -Wcomment
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# -Wformat
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# -Wmaybe-uninitialized
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# -Wnonnull
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# -Wparentheses
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# -Wpointer-sign
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# -Wreorder
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# -Wreturn-type
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# -Wsequence-point
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# -Wstrict-aliasing
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# -Wstrict-overflow=1
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# -Wswitch
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# -Wtrigraphs
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# -Wuninitialized
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# -Wunknown-pragmas
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# -Wunused-function
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# -Wunused-label
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# -Wunused-value
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# -Wunused-variable
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# -Wvolatile-register-var
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wextra")
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# sets the following Fortran options:
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# -Wunuses-parameter:
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# -Wcompare-reals:
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# and sets the general (non-Fortran options) options:
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# -Wclobbered
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# -Wempty-body
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# -Wignored-qualifiers
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# -Wmissing-field-initializers
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# -Woverride-init
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# -Wsign-compare
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# -Wtype-limits
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# -Wuninitialized
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# -Wunused-but-set-parameter (only with -Wunused or -Wall)
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# -Wno-globals
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wcharacter-truncation")
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# warn if character expressions (strings) are truncated
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wunderflow")
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# produce a warning when numerical constant expressions are encountered, which yield an UNDERFLOW during compilation
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wsuggest-attribute=pure")
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wsuggest-attribute=noreturn")
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wconversion-extra")
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wimplicit-procedure")
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -Wno-unused-parameter")
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set (COMPILE_FLAGS "${COMPILE_FLAGS} -ffpe-summary=all")
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# print summary of floating point exeptions (invalid,zero,overflow,underflow,inexact,denormal)
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# Additional options
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# -Warray-temporarieswarnings: because we have many temporary arrays (performance issue?)
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# -Wimplicit-interface: no interfaces for lapack/MPI routines
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# -Wunsafe-loop-optimizations: warn if the loop cannot be optimized due to nontrivial assumptions
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#------------------------------------------------------------------------------------------------
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# Runtime debugging
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -ffpe-trap=invalid,zero,overflow")
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# stop execution if floating point exception is detected (NaN is silent)
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# Additional options
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# -ffpe-trap=precision,denormal,underflow
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -g")
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# Generate symbolic debugging information in the object file
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -fbacktrace")
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -fdump-core")
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -fcheck=all")
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# checks for (array-temps,bounds,do,mem,pointer,recursion)
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -fstack-protector-all")
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# Inserts a guard variable onto the stack frame for all functions
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set (DEBUG_FLAGS "${DEBUG_FLAGS} -fsanitize=undefined")
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# detect undefined behavior
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# Additional options
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# -fsanitize=address,leak,thread
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#------------------------------------------------------------------------------------------------
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# precision settings
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set (PRECISION_FLAGS "${PRECISION_FLAGS} -fdefault-real-8")
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# set precision to 8 bytes for standard real (=8 for pReal). Will set size of double to 16 bytes as long as -fdefault-double-8 is not set
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set (PRECISION_FLAGS "${PRECISION_FLAGS} -fdefault-double-8")
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# set precision to 8 bytes for double real, would be 16 bytes if -fdefault-real-8 is used
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