1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 1-d.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscdm.h> 5*c4762a1bSJed Brown #include <petscdmda.h> 6*c4762a1bSJed Brown 7*c4762a1bSJed Brown int main(int argc,char **argv) 8*c4762a1bSJed Brown { 9*c4762a1bSJed Brown PetscErrorCode ierr; 10*c4762a1bSJed Brown PetscInt M = 6,stencil_width = 1, dof = 1,m,xstart,i,j; 11*c4762a1bSJed Brown DM da; 12*c4762a1bSJed Brown Vec global,local; 13*c4762a1bSJed Brown PetscScalar **vglobal; 14*c4762a1bSJed Brown PetscViewer sviewer; 15*c4762a1bSJed Brown 16*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 17*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,0,"-dof",&dof,0);CHKERRQ(ierr); 19*c4762a1bSJed Brown 20*c4762a1bSJed Brown ierr = DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_MIRROR,M,dof,stencil_width,NULL,&da);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = DMSetFromOptions(da);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = DMSetUp(da);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = DMDAGetCorners(da,&xstart,0,0,&m,0,0);CHKERRQ(ierr); 24*c4762a1bSJed Brown 25*c4762a1bSJed Brown ierr = DMCreateGlobalVector(da,&global);CHKERRQ(ierr); 26*c4762a1bSJed Brown ierr = DMDAVecGetArrayDOF(da,global,&vglobal);CHKERRQ(ierr); 27*c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 28*c4762a1bSJed Brown for (j=0; j<dof; j++) { 29*c4762a1bSJed Brown vglobal[i][j] = 100*(i+1) + j; 30*c4762a1bSJed Brown } 31*c4762a1bSJed Brown } 32*c4762a1bSJed Brown ierr = DMDAVecRestoreArrayDOF(da,global,&vglobal);CHKERRQ(ierr); 33*c4762a1bSJed Brown 34*c4762a1bSJed Brown ierr = DMCreateLocalVector(da,&local);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = DMGlobalToLocalBegin(da,global,INSERT_VALUES,local);CHKERRQ(ierr); 36*c4762a1bSJed Brown ierr = DMGlobalToLocalEnd(da,global,INSERT_VALUES,local);CHKERRQ(ierr); 37*c4762a1bSJed Brown 38*c4762a1bSJed Brown ierr = PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = VecView(local,sviewer);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 42*c4762a1bSJed Brown ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 43*c4762a1bSJed Brown 44*c4762a1bSJed Brown ierr = DMDestroy(&da);CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = VecDestroy(&local);CHKERRQ(ierr); 46*c4762a1bSJed Brown ierr = VecDestroy(&global);CHKERRQ(ierr); 47*c4762a1bSJed Brown 48*c4762a1bSJed Brown ierr = PetscFinalize(); 49*c4762a1bSJed Brown return ierr; 50*c4762a1bSJed Brown } 51*c4762a1bSJed Brown 52*c4762a1bSJed Brown /*TEST 53*c4762a1bSJed Brown 54*c4762a1bSJed Brown test: 55*c4762a1bSJed Brown 56*c4762a1bSJed Brown test: 57*c4762a1bSJed Brown suffix: 2 58*c4762a1bSJed Brown nsize: 2 59*c4762a1bSJed Brown filter: grep -v "Vec Object" 60*c4762a1bSJed Brown 61*c4762a1bSJed Brown TEST*/ 62