Have you revised the compiler flags while trying to compile with intel fortran? Note that the flags for each compiler differs from intel to pgi and to gnu's. Aren't there pgi also?Ī lillte research on manual pages made me think these flags are gfortran only, and the -W are just to suppress-show some kinds of warnings. You should understand what are these flags and then input the correct ones on fortran. I don't recognise -Wabi nor -Wcast-align on ifort. I don't know the default, but the -Dpgifortran is likely to give you trouble as you are not using the portland group set of compilers (pgi, pgf90 and so on).Īlso, the -Df2cfortran could be igniting some default on the defines that could be breaking the code. I had such a problem with old CCM3, and what I have to do was to give an option to the compiler so it generated both modules with the same underscoring.įor example, if the c code is looking for symbols like 'main' and fortran is looking for symbols like '_main', in the linking trouble will happen. This problems looks like 'linking' to modules both compiled in c and in fortran. Mpirun -v -x KMP_STACKSIZE -np $NTASKS $COMPONENTS : -np $NTASKS $COMPONENTS : -np $NTASKS $COMPONENTS : -np $NTASKS $COMPONENTS : -np $NTASKS $COMPONENTS I submit the jobs with sun grid engine, and my mpirun command (in the run script) is I didn't want to spend too much time refining this, since I have something that worksĬPPDEFS := $(CPPDEFS) -DPOSIX -Dimpvmix -DcoupledįIXEDFLAGS := -convert big_endian -assume bytereclĬPPDEFS := $(CPPDEFS) -Dcoupled -DNPROC_X=$(NX) -DNPROC_Y=$(NY) -D_MPIĬPPDEFS := $(CPPDEFS) -D_OPENMP -DTHREADED_PTHREADS # some of these probably can be eliminated. # r8 8byte reals (autodouble does this as well)ĬPPFLAGS := -DLINUX -DPGF90 -DNO_SHR_VMATH -DINTEL_COMPILER -DpgiFortran -Df2cFortran ULIBS := -L$(LIBROOT) -lesmf -lmct -lmpeu -lmphĬPPFLAGS := -DLINUX -DPGF90 -DNO_SHR_VMATHįFLAGS := -cpp -c -r8 -i4 -132 -autodouble -convert big_endian -fp-model precise -prec-div -prec-sqrt SLIBS := -L$(LIB_NETCDF) -lnetcdf -llapack -lblas -L$(LIB_MPI) -lmpi_f77 -lmpi
If you want additional info, let me know. I'm using ifort (/opt/intel/fce/10.1.015/bin/ifort) and OpenMPI. If you see a problem with anything, please let me know though.
Some of the flags are redundant, but it works, so I don't want to waste time if it doesn't change the output.
Here are the compiler flags that worked for me (CCSM passed DB, ER, HR, and YR tests, plus 20 year run looks reasonable when compared with NCAR control run using AMWG diagnostic package).
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