- INSTALL GFORTRAN IN LINUX CLUSTER MANUAL
- INSTALL GFORTRAN IN LINUX CLUSTER CODE
- INSTALL GFORTRAN IN LINUX CLUSTER PLUS
Libfabric is a low-level communication abstraction for high-performance networks. Taken from Intel Performance Libraries, Intel® MPI Library Over Libfabric* Synchronize debug output from different process or threads.ĭo not use buffered I/O for debug output. Suppress warnings for improper use case (for example, incompatible combination of controls). Show source file name for each debug message. Show source line number for each debug message.
Show time and date for each debug message. Show thread id for each debug message for multithreaded library. Output environment variables specific to the Intel® MPI Library. Output effective MPI rank, pid and node mapping table. Output information about the tuning file used. Indicate the level of debug information provided. To redirect the debug information output from stdout to stderr or a text file, use the I_MPI_DEBUG_OUTPUT environment variable $ mpirun -genv I_MPI_DEBUG=5 -genv I_MPI_DEBUG_OUTPUT=debug_output.txt -n 32. A value of I_MPI_DEBUG=5 is generally a good starting point, which provides sufficient information to find common errors. High values of I_MPI_DEBUG can output a lot of information and significantly reduce performance of your application. The higher the value, the more debug information you get. You can set the variable value from 0 (the default value) to 1000.
The I_MPI_DEBUG environment variable provides a convenient way to get detailed information about an MPI application at runtime. Give the flags I shown here a try and they might do it (drop at least the -Dpgifortran parameter and get rid of pgi).The Detailed Information can be found at Displaying MPI Debug Information How have you switched between compilers?. 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.
INSTALL GFORTRAN IN LINUX CLUSTER MANUAL
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.
INSTALL GFORTRAN IN LINUX CLUSTER 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.
INSTALL GFORTRAN IN LINUX CLUSTER PLUS
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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