1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests MatTranspose() and MatEqual() for MPIAIJ matrices.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscmat.h> 5*c4762a1bSJed Brown 6*c4762a1bSJed Brown int main(int argc,char **argv) 7*c4762a1bSJed Brown { 8*c4762a1bSJed Brown Mat A,B; 9*c4762a1bSJed Brown PetscInt m = 7,n,i,rstart,rend,cols[3]; 10*c4762a1bSJed Brown PetscErrorCode ierr; 11*c4762a1bSJed Brown PetscScalar v[3]; 12*c4762a1bSJed Brown PetscBool equal; 13*c4762a1bSJed Brown const char *eq[2]; 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 16*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL);CHKERRQ(ierr); 17*c4762a1bSJed Brown n = m; 18*c4762a1bSJed Brown 19*c4762a1bSJed Brown /* ------- Assemble matrix, --------- */ 20*c4762a1bSJed Brown 21*c4762a1bSJed Brown ierr = MatCreateAIJ(PETSC_COMM_WORLD,PETSC_DECIDE,PETSC_DECIDE,m,n,0,0,0,0,&A);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = MatSetOption(A,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = MatGetOwnershipRange(A,&rstart,&rend);CHKERRQ(ierr); 24*c4762a1bSJed Brown if (!rstart) { 25*c4762a1bSJed Brown cols[0] = 0; 26*c4762a1bSJed Brown cols[1] = 1; 27*c4762a1bSJed Brown v[0] = 2.0; v[1] = -1.0; 28*c4762a1bSJed Brown ierr = MatSetValues(A,1,&rstart,2,cols,v,INSERT_VALUES);CHKERRQ(ierr); 29*c4762a1bSJed Brown rstart++; 30*c4762a1bSJed Brown } 31*c4762a1bSJed Brown if (rend == m) { 32*c4762a1bSJed Brown rend--; 33*c4762a1bSJed Brown cols[0] = rend-1; 34*c4762a1bSJed Brown cols[1] = rend; 35*c4762a1bSJed Brown v[0] = -1.0; v[1] = 2.0; 36*c4762a1bSJed Brown ierr = MatSetValues(A,1,&rend,2,cols,v,INSERT_VALUES);CHKERRQ(ierr); 37*c4762a1bSJed Brown } 38*c4762a1bSJed Brown v[0] = -1.0; v[1] = 2.0; v[2] = -1.0; 39*c4762a1bSJed Brown for (i=rstart; i<rend; i++) { 40*c4762a1bSJed Brown cols[0] = i-1; 41*c4762a1bSJed Brown cols[1] = i; 42*c4762a1bSJed Brown cols[2] = i+1; 43*c4762a1bSJed Brown ierr = MatSetValues(A,1,&i,3,cols,v,INSERT_VALUES);CHKERRQ(ierr); 44*c4762a1bSJed Brown } 45*c4762a1bSJed Brown ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 46*c4762a1bSJed Brown ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 47*c4762a1bSJed Brown 48*c4762a1bSJed Brown ierr = MatTranspose(A,MAT_INITIAL_MATRIX,&B);CHKERRQ(ierr); 49*c4762a1bSJed Brown 50*c4762a1bSJed Brown ierr = MatEqual(A,B,&equal);CHKERRQ(ierr); 51*c4762a1bSJed Brown 52*c4762a1bSJed Brown eq[0] = "not equal"; 53*c4762a1bSJed Brown eq[1] = "equal"; 54*c4762a1bSJed Brown ierr = PetscPrintf(PETSC_COMM_WORLD,"Matrices are %s\n",eq[equal]);CHKERRQ(ierr); 55*c4762a1bSJed Brown 56*c4762a1bSJed Brown ierr = MatTranspose(A,MAT_REUSE_MATRIX,&B);CHKERRQ(ierr); 57*c4762a1bSJed Brown ierr = MatEqual(A,B,&equal);CHKERRQ(ierr); 58*c4762a1bSJed Brown if (!equal) { ierr = PetscPrintf(PETSC_COMM_WORLD,"MatTranspose with MAT_REUSE_MATRIX failed");CHKERRQ(ierr); } 59*c4762a1bSJed Brown 60*c4762a1bSJed Brown /* Free data structures */ 61*c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 62*c4762a1bSJed Brown ierr = MatDestroy(&B);CHKERRQ(ierr); 63*c4762a1bSJed Brown 64*c4762a1bSJed Brown 65*c4762a1bSJed Brown ierr = PetscFinalize(); 66*c4762a1bSJed Brown return ierr; 67*c4762a1bSJed Brown } 68*c4762a1bSJed Brown 69*c4762a1bSJed Brown /*TEST 70*c4762a1bSJed Brown 71*c4762a1bSJed Brown test: 72*c4762a1bSJed Brown 73*c4762a1bSJed Brown test: 74*c4762a1bSJed Brown suffix: 2 75*c4762a1bSJed Brown nsize: 2 76*c4762a1bSJed Brown output_file: output/ex58_1.out 77*c4762a1bSJed Brown 78*c4762a1bSJed Brown TEST*/ 79