Actual source code: ex15.c

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

 4:  #include petscvec.h

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

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

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

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

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

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

 32:   /* 
 33:       Resulting vector should be 0 4 8  0 0 0 12 16 20
 34:   */
 35:   VecView(x,PETSC_VIEWER_STDOUT_WORLD);

 37:   VecDestroy(x);

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