1 2 static char help[] = "Tests loading DM vector from file.\n\n"; 3 4 /* 5 ex14.c writes out the DMDA and vector read by this program. 6 */ 7 8 #include <petscdmda.h> 9 10 int main(int argc,char **argv) 11 { 12 PetscErrorCode ierr; 13 PetscInt M = PETSC_DECIDE,N = PETSC_DECIDE; 14 DM da; 15 Vec global; 16 PetscViewer bviewer; 17 18 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 19 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 20 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 21 22 CHKERRQ(PetscViewerBinaryOpen(PETSC_COMM_WORLD,"daoutput",FILE_MODE_READ,&bviewer)); 23 CHKERRQ(DMCreate(PETSC_COMM_WORLD,&da)); 24 25 CHKERRQ(DMLoad(da,bviewer)); 26 CHKERRQ(DMCreateGlobalVector(da,&global)); 27 CHKERRQ(VecLoad(global,bviewer)); 28 CHKERRQ(PetscViewerDestroy(&bviewer)); 29 30 CHKERRQ(VecView(global,PETSC_VIEWER_DRAW_WORLD)); 31 32 /* Free memory */ 33 CHKERRQ(VecDestroy(&global)); 34 CHKERRQ(DMDestroy(&da)); 35 ierr = PetscFinalize(); 36 return ierr; 37 } 38