petsc-3.3-p7 2013-05-11

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

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

Examples

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