1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Demonstrates constructing an application ordering.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscao.h> 5*c4762a1bSJed Brown #include <petscviewer.h> 6*c4762a1bSJed Brown 7*c4762a1bSJed Brown int main(int argc,char **argv) 8*c4762a1bSJed Brown { 9*c4762a1bSJed Brown PetscInt n = 5; 10*c4762a1bSJed Brown PetscErrorCode ierr; 11*c4762a1bSJed Brown PetscMPIInt rank,size; 12*c4762a1bSJed Brown IS ispetsc,isapp; 13*c4762a1bSJed Brown AO ao; 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 16*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr); 17*c4762a1bSJed Brown ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 19*c4762a1bSJed Brown 20*c4762a1bSJed Brown /* create the index sets */ 21*c4762a1bSJed Brown ierr = ISCreateStride(PETSC_COMM_WORLD,n,rank,size,&ispetsc);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = ISCreateStride(PETSC_COMM_WORLD,n,n*rank,1,&isapp);CHKERRQ(ierr); 23*c4762a1bSJed Brown 24*c4762a1bSJed Brown /* create the application ordering */ 25*c4762a1bSJed Brown ierr = AOCreateBasicIS(isapp,ispetsc,&ao);CHKERRQ(ierr); 26*c4762a1bSJed Brown 27*c4762a1bSJed Brown 28*c4762a1bSJed Brown ierr = AOView(ao,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 29*c4762a1bSJed Brown 30*c4762a1bSJed Brown ierr = ISView(ispetsc,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = ISView(isapp,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 32*c4762a1bSJed Brown ierr = AOPetscToApplicationIS(ao,ispetsc);CHKERRQ(ierr); 33*c4762a1bSJed Brown ierr = ISView(isapp,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 34*c4762a1bSJed Brown ierr = ISView(ispetsc,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 35*c4762a1bSJed Brown 36*c4762a1bSJed Brown 37*c4762a1bSJed Brown ierr = ISDestroy(&ispetsc);CHKERRQ(ierr); 38*c4762a1bSJed Brown ierr = ISDestroy(&isapp);CHKERRQ(ierr); 39*c4762a1bSJed Brown 40*c4762a1bSJed Brown ierr = AODestroy(&ao);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = PetscFinalize(); 42*c4762a1bSJed Brown return ierr; 43*c4762a1bSJed Brown } 44*c4762a1bSJed Brown 45*c4762a1bSJed Brown /*TEST 46*c4762a1bSJed Brown 47*c4762a1bSJed Brown test: 48*c4762a1bSJed Brown nsize: 2 49*c4762a1bSJed Brown 50*c4762a1bSJed Brown TEST*/ 51