petsc-3.7.7 2017-09-25

VecSetOperation

Allows user to set a vector operation.

Synopsis

#include "petscvec.h"   
PetscErrorCode VecSetOperation(Vec vec,VecOperation op, void (*f)(void))

Logically Collective on Vec

Input Parameters

	vec	- the vector
	op	- the name of the operation
	f	- the function that provides the operation.

Usage

     PetscErrorCode userview(Vec,PetscViewer);

     ierr = VecCreateMPI(comm,m,M,&x);

     ierr = VecSetOperation(x,VECOP_VIEW,(void(*)(void))userview);

Notes

See the file include/petscvec.h for a complete list of matrix operations, which all have the form VECOP_<OPERATION>, where <OPERATION> is the name (in all capital letters) of the user interface routine (e.g., VecView() -> VECOP_VIEW).

This function is not currently available from Fortran.

Keywords