1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 1-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 = 6,stencil_width = 1, dof = 1,m,xstart,i,j; 10c4762a1bSJed Brown DM da; 11c4762a1bSJed Brown Vec global,local; 12c4762a1bSJed Brown PetscScalar **vglobal; 13c4762a1bSJed Brown PetscViewer sviewer; 14c4762a1bSJed Brown 15*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 16*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0)); 17*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-dof",&dof,0)); 18c4762a1bSJed Brown 19*9566063dSJacob Faibussowitsch PetscCall(DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_MIRROR,M,dof,stencil_width,NULL,&da)); 20*9566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 21*9566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 22*9566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da,&xstart,0,0,&m,0,0)); 23c4762a1bSJed Brown 24*9566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da,&global)); 25*9566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da,global,&vglobal)); 26c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 27c4762a1bSJed Brown for (j=0; j<dof; j++) { 28c4762a1bSJed Brown vglobal[i][j] = 100*(i+1) + j; 29c4762a1bSJed Brown } 30c4762a1bSJed Brown } 31*9566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da,global,&vglobal)); 32c4762a1bSJed Brown 33*9566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da,&local)); 34*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 35*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 36c4762a1bSJed Brown 37*9566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 38*9566063dSJacob Faibussowitsch PetscCall(VecView(local,sviewer)); 39*9566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 40*9566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 41*9566063dSJacob Faibussowitsch PetscCall(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 42c4762a1bSJed Brown 43*9566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 44*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 45*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 46c4762a1bSJed Brown 47*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 48b122ec5aSJacob Faibussowitsch return 0; 49c4762a1bSJed Brown } 50c4762a1bSJed Brown 51c4762a1bSJed Brown /*TEST 52c4762a1bSJed Brown 53c4762a1bSJed Brown test: 54c4762a1bSJed Brown 55c4762a1bSJed Brown test: 56c4762a1bSJed Brown suffix: 2 57c4762a1bSJed Brown nsize: 2 58c4762a1bSJed Brown filter: grep -v "Vec Object" 59c4762a1bSJed Brown 60c4762a1bSJed Brown TEST*/ 61