1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests DMGetGlobalVector() and DMRestoreGlobalVector().\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown /* 5c4762a1bSJed Brown Use the options 6c4762a1bSJed Brown -da_grid_x <nx> - number of grid points in x direction, if M < 0 7c4762a1bSJed Brown -da_grid_y <ny> - number of grid points in y direction, if N < 0 8c4762a1bSJed Brown -da_processors_x <MX> number of processors in x directio 9c4762a1bSJed Brown -da_processors_y <MY> number of processors in x direction 10c4762a1bSJed Brown */ 11c4762a1bSJed Brown 12c4762a1bSJed Brown #include <petscdm.h> 13c4762a1bSJed Brown #include <petscdmda.h> 14c4762a1bSJed Brown 15c4762a1bSJed Brown int main(int argc,char **argv) 16c4762a1bSJed Brown { 17c4762a1bSJed Brown PetscInt M = 10,N = 8; 18c4762a1bSJed Brown PetscBool flg = PETSC_FALSE; 19c4762a1bSJed Brown DM da; 20c4762a1bSJed Brown Vec global1,global2,global3; 21c4762a1bSJed Brown DMBoundaryType bx = DM_BOUNDARY_NONE,by = DM_BOUNDARY_NONE; 22c4762a1bSJed Brown DMDAStencilType stype = DMDA_STENCIL_BOX; 23c4762a1bSJed Brown 24*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 25*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL,NULL,"-star_stencil",&flg,NULL)); 26c4762a1bSJed Brown if (flg) stype = DMDA_STENCIL_STAR; 27c4762a1bSJed Brown 28c4762a1bSJed Brown /* Create distributed array and get vectors */ 29*9566063dSJacob Faibussowitsch PetscCall(DMDACreate2d(PETSC_COMM_WORLD,bx,by,stype,M,N,PETSC_DECIDE,PETSC_DECIDE,1,1,NULL,NULL,&da)); 30*9566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 31*9566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 32*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global1)); 33*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global2)); 34*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global1)); 35*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global2)); 36*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global1)); 37*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global3)); 38*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global2)); 39*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global1)); 40*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global3)); 41*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global2)); 42*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global1)); 43*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global3)); 44*9566063dSJacob Faibussowitsch PetscCall(DMGetGlobalVector(da,&global2)); 45*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global1)); 46*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global3)); 47*9566063dSJacob Faibussowitsch PetscCall(DMRestoreGlobalVector(da,&global2)); 48*9566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 49*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 50b122ec5aSJacob Faibussowitsch return 0; 51c4762a1bSJed Brown } 52c4762a1bSJed Brown 53c4762a1bSJed Brown /*TEST 54c4762a1bSJed Brown 55c4762a1bSJed Brown test: 56c4762a1bSJed Brown 57c4762a1bSJed Brown TEST*/ 58