petsc-3.9.2 2018-05-20
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PetscFOpen

Has the first process in the communicator open a file; all others do nothing.

Synopsis

PetscErrorCode  PetscFOpen(MPI_Comm comm,const char name[],const char mode[],FILE **fp)
Logically Collective on MPI_Comm

Input Parameters

comm - the communicator
name - the filename
mode - the mode for fopen(), usually "w"

Output Parameter

fp -the file pointer

Notes

NULL (0), "stderr" or "stdout" may be passed in as the filename

Fortran Note

This routine is not supported in Fortran.

See Also

PetscFClose(), PetscSynchronizedFGets(), PetscSynchronizedPrintf(), PetscSynchronizedFlush(),
PetscFPrintf()

Level

developer

Location

src/sys/fileio/mpiuopen.c

Examples

src/sys/classes/random/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex43.c.html
src/ksp/ksp/examples/tutorials/ex49.c.html

Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages