1 2 static char help[] = "Tests MatCreateHermitianTranspose().\n\n"; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **args) 7 { 8 Mat C,C_htransposed,Cht,C_empty; 9 PetscInt i,j,m = 10,n = 10; 10 PetscErrorCode ierr; 11 PetscScalar v; 12 13 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 14 /* Create a complex non-hermitian matrix */ 15 ierr = MatCreate(PETSC_COMM_SELF,&C);CHKERRQ(ierr); 16 ierr = MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,m,n);CHKERRQ(ierr); 17 ierr = MatSetFromOptions(C);CHKERRQ(ierr); 18 ierr = MatSetUp(C);CHKERRQ(ierr); 19 for (i=0; i<m; i++) { 20 for (j=0; j<n; j++) { 21 v = 0.0 - 1.0*PETSC_i; 22 if (i>j && i-j<2) {ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr);} 23 } 24 } 25 ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 26 ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 27 28 ierr = MatCreateHermitianTranspose(C, &C_htransposed);CHKERRQ(ierr); 29 30 ierr = MatView(C,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); 31 ierr = MatDuplicate(C_htransposed,MAT_COPY_VALUES,&Cht);CHKERRQ(ierr); 32 ierr = MatView(Cht,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); 33 ierr = MatDuplicate(C_htransposed,MAT_DO_NOT_COPY_VALUES,&C_empty);CHKERRQ(ierr); 34 ierr = MatView(C_empty,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); 35 36 ierr = MatDestroy(&C);CHKERRQ(ierr); 37 ierr = MatDestroy(&C_htransposed);CHKERRQ(ierr); 38 ierr = MatDestroy(&Cht);CHKERRQ(ierr); 39 ierr = MatDestroy(&C_empty);CHKERRQ(ierr); 40 ierr = PetscFinalize(); 41 return ierr; 42 } 43 44 /*TEST 45 46 build: 47 requires: complex 48 49 test: 50 output_file: output/ex175.out 51 52 TEST*/ 53