Yes. It works without MPIIO. -Hanqi
--------------- Hanqi Guo Postdoctoral Appointee Mathematics and Computer Science Division Argonne National Laboratory 9700 S. Cass Ave., Bldg 240 Argonne, IL 60439 e-mail: [email protected] web: http://www.mcs.anl.gov/~hguo phone: 630-252-7225 > On Feb 28, 2016, at 11:05 AM, Barry Smith <[email protected]> wrote: > > > Does it work without the PetscViewerBinarySetUseMPIIO(viewer, PETSC_TRUE); ? > > Barry > >> On Feb 27, 2016, at 9:57 PM, Guo, Hanqi <[email protected]> wrote: >> >> Hi, >> >> I am trying to write a sparse matrix to file with MPIIO but failed. I got >> the same error on vesta (gpfs), my Macbook (local disk), and a linux machine >> (nfs). The followings are my code snippet and error output. Could anyone >> help me check the code? Thanks! >> >> ... >> MatCreate(PETSC_COMM_WORLD, &mat); >> MatSetType(mat, MATMPIAIJ); >> MatSetSizes(mat, PETSC_DECIDE, PETSC_DECIDE, n, n); >> MatSetUp(mat); >> ... >> // write matrix >> ... >> MatAssemblyBegin(mat, MAT_FINAL_ASSEMBLY); >> MatAssemblyEnd(mat, MAT_FINAL_ASSEMBLY); >> >> PetscViewer viewer; >> PetscViewerCreate(PETSC_COMM_WORLD, &viewer); >> PetscViewerSetType(viewer, PETSCVIEWERBINARY); >> PetscViewerFileSetMode(viewer, FILE_MODE_WRITE); >> PetscViewerFileSetName(viewer, "sfm.mat"); >> PetscViewerBinarySetUseMPIIO(viewer, PETSC_TRUE); >> MatView(mat, viewer); >> PetscViewerDestroy(&viewer); >> ... >> >> >> [0]PETSC ERROR: --------------------- Error Message >> -------------------------------------------------------------- >> [0]PETSC ERROR: Write to file failed >> [0]PETSC ERROR: Error writing to file total size 4 err -1 wsize 16 >> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for >> trouble shooting. >> [0]PETSC ERROR: Petsc Release Version 3.6.3, Dec, 03, 2015 >> [0]PETSC ERROR: Unknown Name on a arch-linux2-c-debug named compute001 by >> hguo Sat Feb 27 21:40:04 2016 >> [0]PETSC ERROR: Configure options —prefix=(hidden) --with-fc=0 >> --download-f2cblaslapack --with-mpi-dir=(hidden) --with-precision=single >> [0]PETSC ERROR: #1 PetscBinaryWrite() line 405 in >> (hidden)/petsc-3.6.3/src/sys/fileio/sysio.c >> [0]PETSC ERROR: #2 MatView_MPIAIJ_Binary() line 1219 in >> (hidden)/petsc-3.6.3/src/mat/impls/aij/mpi/mpiaij.c >> [0]PETSC ERROR: #3 MatView_MPIAIJ_ASCIIorDraworSocket() line 1385 in >> (hidden)/petsc-3.6.3/src/mat/impls/aij/mpi/mpiaij.c >> [0]PETSC ERROR: #4 MatView_MPIAIJ() line 1470 in >> (hidden)/petsc-3.6.3/src/mat/impls/aij/mpi/mpiaij.c >> [0]PETSC ERROR: #5 MatView() line 886 in >> (hidden)/petsc-3.6.3/src/mat/interface/matrix.c >> >> >> --------------- >> Hanqi Guo >> Postdoctoral Appointee >> Mathematics and Computer Science Division >> Argonne National Laboratory >> 9700 S. Cass Ave., Bldg 240 >> Argonne, IL 60439 >> e-mail: [email protected] >> web: http://www.mcs.anl.gov/~hguo >> phone: 630-252-7225 >> >
