1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 3-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 = 2, N = 3, P = 4,stencil_width = 1, dof = 1,m,n,p,xstart,ystart,zstart,i,j,k,c; 11*c4762a1bSJed Brown DM da; 12*c4762a1bSJed Brown Vec global,local; 13*c4762a1bSJed Brown PetscScalar ****vglobal; 14*c4762a1bSJed Brown PetscViewer sview; 15*c4762a1bSJed Brown PetscScalar sum; 16*c4762a1bSJed Brown 17*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 18*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0);CHKERRQ(ierr); 19*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,0,"-dof",&dof,0);CHKERRQ(ierr); 20*c4762a1bSJed Brown 21*c4762a1bSJed Brown ierr = DMDACreate3d(PETSC_COMM_WORLD,DM_BOUNDARY_MIRROR,DM_BOUNDARY_MIRROR,DM_BOUNDARY_MIRROR,DMDA_STENCIL_STAR,M,N,P,PETSC_DECIDE,PETSC_DECIDE,PETSC_DECIDE,dof,stencil_width,NULL,NULL,NULL,&da);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = DMSetFromOptions(da);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = DMSetUp(da);CHKERRQ(ierr); 24*c4762a1bSJed Brown ierr = DMDAGetCorners(da,&xstart,&ystart,&zstart,&m,&n,&p);CHKERRQ(ierr); 25*c4762a1bSJed Brown 26*c4762a1bSJed Brown ierr = DMCreateGlobalVector(da,&global);CHKERRQ(ierr); 27*c4762a1bSJed Brown ierr = DMDAVecGetArrayDOF(da,global,&vglobal);CHKERRQ(ierr); 28*c4762a1bSJed Brown for (k=zstart; k<zstart+p; k++) { 29*c4762a1bSJed Brown for (j=ystart; j<ystart+n; j++) { 30*c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 31*c4762a1bSJed Brown for (c=0; c<dof; c++) { 32*c4762a1bSJed Brown vglobal[k][j][i][c] = 1000*k + 100*j + 10*i + c; 33*c4762a1bSJed Brown } 34*c4762a1bSJed Brown } 35*c4762a1bSJed Brown } 36*c4762a1bSJed Brown } 37*c4762a1bSJed Brown ierr = DMDAVecRestoreArrayDOF(da,global,&vglobal);CHKERRQ(ierr); 38*c4762a1bSJed Brown 39*c4762a1bSJed Brown ierr = DMCreateLocalVector(da,&local);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = DMGlobalToLocalBegin(da,global,ADD_VALUES,local);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = DMGlobalToLocalEnd(da,global,ADD_VALUES,local);CHKERRQ(ierr); 42*c4762a1bSJed Brown 43*c4762a1bSJed Brown ierr = VecSum(local,&sum);CHKERRQ(ierr); 44*c4762a1bSJed Brown ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"sum %g\n",(double)PetscRealPart(sum));CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,stdout);CHKERRQ(ierr); 46*c4762a1bSJed Brown ierr = PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview);CHKERRQ(ierr); 47*c4762a1bSJed Brown ierr = VecView(local,sview);CHKERRQ(ierr); 48*c4762a1bSJed Brown ierr = PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview);CHKERRQ(ierr); 49*c4762a1bSJed Brown ierr = PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 50*c4762a1bSJed Brown 51*c4762a1bSJed Brown ierr = DMDestroy(&da);CHKERRQ(ierr); 52*c4762a1bSJed Brown ierr = VecDestroy(&local);CHKERRQ(ierr); 53*c4762a1bSJed Brown ierr = VecDestroy(&global);CHKERRQ(ierr); 54*c4762a1bSJed Brown 55*c4762a1bSJed Brown ierr = PetscFinalize(); 56*c4762a1bSJed Brown return ierr; 57*c4762a1bSJed Brown } 58*c4762a1bSJed Brown 59*c4762a1bSJed Brown /*TEST 60*c4762a1bSJed Brown 61*c4762a1bSJed Brown test: 62*c4762a1bSJed Brown 63*c4762a1bSJed Brown test: 64*c4762a1bSJed Brown suffix: 2 65*c4762a1bSJed Brown nsize: 3 66*c4762a1bSJed Brown 67*c4762a1bSJed Brown TEST*/ 68*c4762a1bSJed Brown 69*c4762a1bSJed Brown 70*c4762a1bSJed Brown 71*c4762a1bSJed Brown 72