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*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 17*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0)); 18*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,0,"-dof",&dof,0)); 19c4762a1bSJed Brown 20*9566063dSJacob 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)); 21*9566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 22*9566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 23*9566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da,&xstart,&ystart,&zstart,&m,&n,&p)); 24c4762a1bSJed Brown 25*9566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da,&global)); 26*9566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da,global,&vglobal)); 27c4762a1bSJed Brown for (k=zstart; k<zstart+p; k++) { 28c4762a1bSJed Brown for (j=ystart; j<ystart+n; j++) { 29c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 30c4762a1bSJed Brown for (c=0; c<dof; c++) { 31c4762a1bSJed Brown vglobal[k][j][i][c] = 1000*k + 100*j + 10*i + c; 32c4762a1bSJed Brown } 33c4762a1bSJed Brown } 34c4762a1bSJed Brown } 35c4762a1bSJed Brown } 36*9566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da,global,&vglobal)); 37c4762a1bSJed Brown 38*9566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da,&local)); 39*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da,global,ADD_VALUES,local)); 40*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da,global,ADD_VALUES,local)); 41c4762a1bSJed Brown 42*9566063dSJacob Faibussowitsch PetscCall(VecSum(local,&sum)); 43*9566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD,"sum %g\n",(double)PetscRealPart(sum))); 44*9566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD,stdout)); 45*9566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview)); 46*9566063dSJacob Faibussowitsch PetscCall(VecView(local,sview)); 47*9566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sview)); 48*9566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 49c4762a1bSJed Brown 50*9566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 51*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 52*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 53c4762a1bSJed Brown 54*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 55b122ec5aSJacob Faibussowitsch return 0; 56c4762a1bSJed Brown } 57c4762a1bSJed Brown 58c4762a1bSJed Brown /*TEST 59c4762a1bSJed Brown 60c4762a1bSJed Brown test: 61c4762a1bSJed Brown 62c4762a1bSJed Brown test: 63c4762a1bSJed Brown suffix: 2 64c4762a1bSJed Brown nsize: 3 65c4762a1bSJed Brown 66c4762a1bSJed Brown TEST*/ 67