Actual source code: ex15.c

  2: static char help[] = "Tests VecSetValuesBlocked() on sequential vectors.\n\n";

 4:  #include petscvec.h
 5:  #include petscsys.h

  9: int main(int argc,char **argv)
 10: {
 12:   PetscMPIInt    size;
 13:   PetscInt       n = 9,bs = 3,indices[2],i;
 14:   PetscScalar    values[6];
 15:   Vec            x;

 17:   PetscInitialize(&argc,&argv,(char*)0,help);
 18:   MPI_Comm_size(PETSC_COMM_WORLD,&size);

 20:   if (size != 1) SETERRQ(1,"Must be run with one processor");

 22:   /* create vector */
 23:   VecCreateSeq(PETSC_COMM_SELF,n,&x);
 24:   VecSetBlockSize(x,bs);

 26:   for (i=0; i<6; i++) values[i] = 4.0*i;
 27:   indices[0] = 0; indices[1] = 2;
 28:   VecSetValuesBlocked(x,2,indices,values,INSERT_VALUES);

 30:   VecAssemblyBegin(x);
 31:   VecAssemblyEnd(x);

 33:   /* 
 34:       Resulting vector should be 0 4 8  0 0 0 12 16 20
 35:   */
 36:   VecView(x,PETSC_VIEWER_STDOUT_WORLD);

 38:   VecDestroy(x);

 40:   PetscFinalize();
 41:   return 0;
 42: }
 43: