Dear OpenMPI developpers, I would like to report a bug for openmpi/2.0.2
This bug might have been corrected in earlier version. Appologies if it is the case. I tested that it work with openmpi/1.10. If you open and close a file a lot of times with openmpi 2.0.2, the memory increase linearly with the number of times the file is open. Here is a small Fortran file to reproduce the issue: ----------------------------------------------- PROGRAM test INCLUDE 'mpif.h' INTEGER :: iunepmatwp2, ierr, ii CALL MPI_INIT(ierr) DO ii=1, 10000 print*,'ii ',ii CALL MPI_FILE_OPEN(MPI_COMM_WORLD,'XXX.FILE',MPI_MODE_RDONLY,MPI_ INFO_NULL,iunepmatwp2,ierr) CALL MPI_FILE_CLOSE(iunepmatwp2,ierr) ENDDO CALL MPI_FINALIZE(ierr) END PROGRAM -------------------------------------------------------------- where 'XXX.FILE' is big binary file (100 Mo or so). mpif90 -O2 -assume byterecl -g -traceback -nomodule -c test.f90 mpif90 -static-intel -o test.x test.o So in the case of compilation with openmpi 2.0.2 the memory increase whereas with 1.10 the memory stay constant with the number of iteration. Best Regards, Samuel
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