1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests DMDA interpolation.\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 M1 = 3,M2,dof = 1,s = 1,ratio = 2,dim = 1; 10c4762a1bSJed Brown PetscErrorCode ierr; 11c4762a1bSJed Brown DM da_c,da_f; 12c4762a1bSJed Brown Vec v_c,v_f; 13c4762a1bSJed Brown Mat Interp; 14c4762a1bSJed Brown PetscScalar one = 1.0; 15c4762a1bSJed Brown PetscBool pt; 16c4762a1bSJed Brown DMBoundaryType bx = DM_BOUNDARY_NONE,by = DM_BOUNDARY_NONE,bz = DM_BOUNDARY_NONE; 17c4762a1bSJed Brown 18c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 19*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-dim",&dim,NULL)); 20*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M1,NULL)); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-stencil_width",&s,NULL)); 22*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-ratio",&ratio,NULL)); 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetBool(NULL,NULL,"-periodic",(PetscBool*)&pt,NULL)); 25c4762a1bSJed Brown 26c4762a1bSJed Brown if (pt) { 27c4762a1bSJed Brown if (dim > 0) bx = DM_BOUNDARY_PERIODIC; 28c4762a1bSJed Brown if (dim > 1) by = DM_BOUNDARY_PERIODIC; 29c4762a1bSJed Brown if (dim > 2) bz = DM_BOUNDARY_PERIODIC; 30c4762a1bSJed Brown } 31c4762a1bSJed Brown if (bx == DM_BOUNDARY_NONE) { 32c4762a1bSJed Brown M2 = ratio*(M1-1) + 1; 33c4762a1bSJed Brown } else { 34c4762a1bSJed Brown M2 = ratio*M1; 35c4762a1bSJed Brown } 36c4762a1bSJed Brown 37c4762a1bSJed Brown /* Set up the array */ 38c4762a1bSJed Brown if (dim == 1) { 39*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,bx,M1,dof,s,NULL,&da_c)); 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,bx,M2,dof,s,NULL,&da_f)); 41c4762a1bSJed Brown } else if (dim == 2) { 42*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate2d(PETSC_COMM_WORLD,bx,by,DMDA_STENCIL_BOX,M1,M1,PETSC_DECIDE,PETSC_DECIDE,dof,s,NULL,NULL,&da_c)); 43*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate2d(PETSC_COMM_WORLD,bx,by,DMDA_STENCIL_BOX,M2,M2,PETSC_DECIDE,PETSC_DECIDE,dof,s,NULL,NULL,&da_f)); 44c4762a1bSJed Brown } else if (dim == 3) { 45*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate3d(PETSC_COMM_WORLD,bx,by,bz,DMDA_STENCIL_BOX,M1,M1,M1,PETSC_DECIDE,PETSC_DECIDE,PETSC_DECIDE,dof,s,NULL,NULL,NULL,&da_c)); 46*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate3d(PETSC_COMM_WORLD,bx,by,bz,DMDA_STENCIL_BOX,M2,M2,M2,PETSC_DECIDE,PETSC_DECIDE,PETSC_DECIDE,dof,s,NULL,NULL,NULL,&da_f)); 47c4762a1bSJed Brown } else SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_SUP,"dim must be 1,2, or 3"); 48*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da_c)); 49*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da_c)); 50*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da_f)); 51*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da_f)); 52c4762a1bSJed Brown 53*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da_c,&v_c)); 54*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da_f,&v_f)); 55c4762a1bSJed Brown 56*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecSet(v_c,one)); 57*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateInterpolation(da_c,da_f,&Interp,NULL)); 58*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMult(Interp,v_c,v_f)); 59*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(v_f,PETSC_VIEWER_STDOUT_WORLD)); 60*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMultTranspose(Interp,v_f,v_c)); 61*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(v_c,PETSC_VIEWER_STDOUT_WORLD)); 62c4762a1bSJed Brown 63*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&Interp)); 64*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&v_c)); 65*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da_c)); 66*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&v_f)); 67*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da_f)); 68c4762a1bSJed Brown ierr = PetscFinalize(); 69c4762a1bSJed Brown return ierr; 70c4762a1bSJed Brown } 71