Actual source code: ex1.c

petsc-3.15.0 2021-03-30
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  1: static char help[] = "Tests repeated VecSetType().\n\n";

  3: #include <petscvec.h>

  5: int main(int argc,char **argv)
  6: {
  8:   PetscInt       n   = 5;
  9:   PetscScalar    one = 1.0,two = 2.0;
 10:   Vec            x,y;

 12:   PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr;

 14:   /* create vector */
 15:   VecCreate(PETSC_COMM_SELF,&x);
 16:   VecSetSizes(x,n,PETSC_DECIDE);
 17:   VecSetType(x,"mpi");
 18:   VecSetType(x,"seq");
 19:   VecDuplicate(x,&y);
 20:   VecSetType(x,"mpi");

 22:   VecSet(x,one);
 23:   VecSet(y,two);

 25:   VecDestroy(&x);
 26:   VecDestroy(&y);

 28:   PetscFinalize();
 29:   return ierr;
 30: }

 32: /*TEST

 34:      test:
 35:        suffix: 1

 37:      test:
 38:        suffix: 2
 39:        nsize: 2

 41: TEST*/