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 PetscErrorCode ierr; 10c4762a1bSJed Brown PetscInt M = 6,stencil_width = 1, dof = 1,m,xstart,i,j; 11c4762a1bSJed Brown DM da; 12c4762a1bSJed Brown Vec global,local; 13c4762a1bSJed Brown PetscScalar **vglobal; 14c4762a1bSJed Brown PetscViewer sviewer; 15c4762a1bSJed Brown 16c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 17*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,0,"-stencil_width",&stencil_width,0)); 18*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,0,"-dof",&dof,0)); 19c4762a1bSJed Brown 20*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_MIRROR,M,dof,stencil_width,NULL,&da)); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da)); 22*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da)); 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDAGetCorners(da,&xstart,0,0,&m,0,0)); 24c4762a1bSJed Brown 25*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da,&global)); 26*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDAVecGetArrayDOF(da,global,&vglobal)); 27c4762a1bSJed Brown for (i=xstart; i<xstart+m; i++) { 28c4762a1bSJed Brown for (j=0; j<dof; j++) { 29c4762a1bSJed Brown vglobal[i][j] = 100*(i+1) + j; 30c4762a1bSJed Brown } 31c4762a1bSJed Brown } 32*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDAVecRestoreArrayDOF(da,global,&vglobal)); 33c4762a1bSJed Brown 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateLocalVector(da,&local)); 35*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 36*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 37c4762a1bSJed Brown 38*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 39*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(local,sviewer)); 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 41*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 42*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 43c4762a1bSJed Brown 44*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da)); 45*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&local)); 46*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&global)); 47c4762a1bSJed Brown 48c4762a1bSJed Brown ierr = PetscFinalize(); 49c4762a1bSJed Brown return ierr; 50c4762a1bSJed Brown } 51c4762a1bSJed Brown 52c4762a1bSJed Brown /*TEST 53c4762a1bSJed Brown 54c4762a1bSJed Brown test: 55c4762a1bSJed Brown 56c4762a1bSJed Brown test: 57c4762a1bSJed Brown suffix: 2 58c4762a1bSJed Brown nsize: 2 59c4762a1bSJed Brown filter: grep -v "Vec Object" 60c4762a1bSJed Brown 61c4762a1bSJed Brown TEST*/ 62