1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests loading DM vector from file.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown /* 5*c4762a1bSJed Brown ex14.c writes out the DMDA and vector read by this program. 6*c4762a1bSJed Brown */ 7*c4762a1bSJed Brown 8*c4762a1bSJed Brown #include <petscdmda.h> 9*c4762a1bSJed Brown 10*c4762a1bSJed Brown int main(int argc,char **argv) 11*c4762a1bSJed Brown { 12*c4762a1bSJed Brown PetscErrorCode ierr; 13*c4762a1bSJed Brown PetscInt M = PETSC_DECIDE,N = PETSC_DECIDE; 14*c4762a1bSJed Brown DM da; 15*c4762a1bSJed Brown Vec global; 16*c4762a1bSJed Brown PetscViewer bviewer; 17*c4762a1bSJed Brown 18*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 19*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL);CHKERRQ(ierr); 21*c4762a1bSJed Brown 22*c4762a1bSJed Brown ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,"daoutput",FILE_MODE_READ,&bviewer);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = DMCreate(PETSC_COMM_WORLD,&da);CHKERRQ(ierr); 24*c4762a1bSJed Brown 25*c4762a1bSJed Brown ierr = DMLoad(da,bviewer);CHKERRQ(ierr); 26*c4762a1bSJed Brown ierr = DMCreateGlobalVector(da,&global);CHKERRQ(ierr); 27*c4762a1bSJed Brown ierr = VecLoad(global,bviewer);CHKERRQ(ierr); 28*c4762a1bSJed Brown ierr = PetscViewerDestroy(&bviewer);CHKERRQ(ierr); 29*c4762a1bSJed Brown 30*c4762a1bSJed Brown ierr = VecView(global,PETSC_VIEWER_DRAW_WORLD);CHKERRQ(ierr); 31*c4762a1bSJed Brown 32*c4762a1bSJed Brown /* Free memory */ 33*c4762a1bSJed Brown ierr = VecDestroy(&global);CHKERRQ(ierr); 34*c4762a1bSJed Brown ierr = DMDestroy(&da);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = PetscFinalize(); 36*c4762a1bSJed Brown return ierr; 37*c4762a1bSJed Brown } 38*c4762a1bSJed Brown 39