1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 3-d.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscdm.h> 5c4762a1bSJed Brown #include <petscdmda.h> 6c4762a1bSJed Brown 7c4762a1bSJed Brown int main(int argc,char **argv) 8c4762a1bSJed Brown { 9c4762a1bSJed Brown PetscInt M = 2, N = 3, P = 4,stencil_width = 1, dof = 1,m,n,p,xstart,ystart,zstart,i,j,k,c; 10c4762a1bSJed Brown DM da; 11c4762a1bSJed Brown Vec global,local; 12c4762a1bSJed Brown PetscScalar ****vglobal; 13c4762a1bSJed Brown PetscViewer sview; 14c4762a1bSJed Brown PetscScalar sum; 15c4762a1bSJed Brown 16*327415f7SBarry Smith PetscFunctionBeginUser; 179566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 189566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0)); 199566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-dof",&dof,0)); 20c4762a1bSJed Brown 219566063dSJacob Faibussowitsch PetscCall(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)); 229566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 239566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 249566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da,&xstart,&ystart,&zstart,&m,&n,&p)); 25c4762a1bSJed Brown 269566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da,&global)); 279566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da,global,&vglobal)); 28c4762a1bSJed Brown for (k=zstart; k<zstart+p; k++) { 29c4762a1bSJed Brown for (j=ystart; j<ystart+n; j++) { 30c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 31c4762a1bSJed Brown for (c=0; c<dof; c++) { 32c4762a1bSJed Brown vglobal[k][j][i][c] = 1000*k + 100*j + 10*i + c; 33c4762a1bSJed Brown } 34c4762a1bSJed Brown } 35c4762a1bSJed Brown } 36c4762a1bSJed Brown } 379566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da,global,&vglobal)); 38c4762a1bSJed Brown 399566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da,&local)); 409566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da,global,ADD_VALUES,local)); 419566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da,global,ADD_VALUES,local)); 42c4762a1bSJed Brown 439566063dSJacob Faibussowitsch PetscCall(VecSum(local,&sum)); 449566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD,"sum %g\n",(double)PetscRealPart(sum))); 459566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD,stdout)); 469566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview)); 479566063dSJacob Faibussowitsch PetscCall(VecView(local,sview)); 489566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview)); 499566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 50c4762a1bSJed Brown 519566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 529566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 539566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 54c4762a1bSJed Brown 559566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 56b122ec5aSJacob Faibussowitsch return 0; 57c4762a1bSJed Brown } 58c4762a1bSJed Brown 59c4762a1bSJed Brown /*TEST 60c4762a1bSJed Brown 61c4762a1bSJed Brown test: 62c4762a1bSJed Brown 63c4762a1bSJed Brown test: 64c4762a1bSJed Brown suffix: 2 65c4762a1bSJed Brown nsize: 3 66c4762a1bSJed Brown 67c4762a1bSJed Brown TEST*/ 68