1*c4762a1bSJed Brown /* -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. 2*c4762a1bSJed Brown 3*c4762a1bSJed Brown Detected bug in DMCreateMatrix() for skinny domains with periodic boundary conditions in overestimating nonzero preallocation 4*c4762a1bSJed Brown 5*c4762a1bSJed Brown * Creation Date : 08-12-2016 6*c4762a1bSJed Brown 7*c4762a1bSJed Brown * Last Modified : Thu 08 Dec 2016 10:46:02 AM CET 8*c4762a1bSJed Brown 9*c4762a1bSJed Brown * Created By : Davide Monsorno 10*c4762a1bSJed Brown 11*c4762a1bSJed Brown _._._._._._._._._._._._._._._._._._._._._.*/ 12*c4762a1bSJed Brown 13*c4762a1bSJed Brown #include <petscdmda.h> 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown int main(int argc, char *argv[]) 16*c4762a1bSJed Brown { 17*c4762a1bSJed Brown PetscErrorCode ierr; 18*c4762a1bSJed Brown PetscInt nx = 2; 19*c4762a1bSJed Brown PetscInt ny = 2; 20*c4762a1bSJed Brown PetscInt nz = 128; 21*c4762a1bSJed Brown DM da; 22*c4762a1bSJed Brown Mat A; 23*c4762a1bSJed Brown 24*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,NULL,NULL);if (ierr) return ierr; 25*c4762a1bSJed Brown 26*c4762a1bSJed Brown ierr = DMDACreate3d(PETSC_COMM_WORLD,DM_BOUNDARY_PERIODIC,DM_BOUNDARY_PERIODIC,DM_BOUNDARY_GHOSTED,DMDA_STENCIL_BOX,nx,ny,nz, 27*c4762a1bSJed Brown PETSC_DECIDE,PETSC_DECIDE,PETSC_DECIDE,1,2,NULL,NULL,NULL,&da);CHKERRQ(ierr); 28*c4762a1bSJed Brown 29*c4762a1bSJed Brown ierr = DMSetFromOptions(da);CHKERRQ(ierr); 30*c4762a1bSJed Brown ierr = DMSetUp(da);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = DMView(da,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 32*c4762a1bSJed Brown ierr = DMCreateMatrix(da,&A);CHKERRQ(ierr); 33*c4762a1bSJed Brown 34*c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = DMDestroy(&da);CHKERRQ(ierr); 36*c4762a1bSJed Brown ierr = PetscFinalize(); 37*c4762a1bSJed Brown return ierr; 38*c4762a1bSJed Brown } 39*c4762a1bSJed Brown 40*c4762a1bSJed Brown 41*c4762a1bSJed Brown /*TEST 42*c4762a1bSJed Brown 43*c4762a1bSJed Brown test: 44*c4762a1bSJed Brown nsize: 5 45*c4762a1bSJed Brown 46*c4762a1bSJed Brown TEST*/ 47