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)

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

PETSC_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
Index of all Sys routines
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