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Changing compiler options is not normally necessary. However, the following examples show the recommended compiler options and how to set them for the cmake and configure commands.
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| title | Compiler options if using cmake (click here)... |
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| borderColor | white |
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| bgColor | white |
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| titleBGColor | white |
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| borderStyle | dotted |
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| title | If using 'cmake' command |
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| | Code Block |
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| title | gcc/gfortran compilers |
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| export CC=gcc
export FC=gfortran
cmake .... -DCMAKE_C_FLAGS="-g -O2" -DCMAKE_Fortran_FLAGS="-g -O2" |
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| export CC=icc
export FC=ifort
cmake ... -DCMAKE_C_FLAGS="-g -O1 -fp-model precise" \
-DCMAKE_Fortran_FLAGS="-g -O1 -fp-model precise" |
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| language | bash |
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| title | Cray compiler (cce) |
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| export CC=cc
export FC=ftn
cmake ... -DCMAKE_C_FLAGS="-O1 -G2 -hflex_mp=conservative -hadd_paren -hfp1" \
-DCMAKE_Fortran_FLAGS="-O1 -G2 -hflex_mp=conservative -hadd_paren -hfp1" |
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| export CC=xlc_r
export FC=xlf90_r
cmake ... -DCMAKE_C_FLAGS="-g -O2 -qstrict -qarch=auto -qtune=auto" \
-DCMAKE_Fortran_FLAGS="-g -O2 -qstrict -qarch=auto -qtune=auto" |
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| title | Compiler options if using configure (click here)... |
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| borderColor | white |
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| bgColor | white |
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| titleBGColor | white |
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| borderStyle | dotted |
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| title | If using 'configure' command |
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| | Code Block |
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| title | gcc/gfortran compilers |
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| export CC=gcc
export FC=gfortran
export CCFLAGS="-g -O2"
export FCFLAGS="-g -O2"
./configure ... |
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| export CC=icc
export FC=ifort
export CFLAGS="-g -O1 -fp-model precise"
export FCFLAGS="-g -O1 -fp-model precise"
./configure ... |
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| language | bash |
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| title | Cray compiler (cce) |
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| export CC=cc
export FC=ftn
export CFLAGS="-O1 -G2 -hflex_mp=conservative -hadd_paren -hfp1"
export FCFLAGS="-O1 -G2 -hflex_mp=conservative -hadd_paren -hfp1"
./configure ... |
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| export CC=xlc_r
export FC=xlf90_r
export CFLAGS="-g -O2 -qstrict -qarch=auto -qtune=auto"
export FCFLAGS="-g -O2 -qstrict -qarch=auto -qtune=auto"
./configure ... |
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Compiling, checks and installing
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