1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests using MatShift() to create a constant diagonal matrix\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,F; 9*c4762a1bSJed Brown MatFactorInfo info; 10*c4762a1bSJed Brown PetscErrorCode ierr; 11*c4762a1bSJed Brown PetscInt m = 10; 12*c4762a1bSJed Brown IS perm; 13*c4762a1bSJed Brown PetscMPIInt size; 14*c4762a1bSJed Brown PetscBool issbaij; 15*c4762a1bSJed Brown 16*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*) 0,help);if (ierr) return ierr; 17*c4762a1bSJed Brown ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 18*c4762a1bSJed Brown 19*c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,m,m);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = MatSetFromOptions(A);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = MatSetUp(A);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 24*c4762a1bSJed Brown ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 25*c4762a1bSJed Brown 26*c4762a1bSJed Brown ierr = MatShift(A,1.0);CHKERRQ(ierr); 27*c4762a1bSJed Brown 28*c4762a1bSJed Brown ierr = PetscObjectTypeCompare((PetscObject)A,MATSEQSBAIJ,&issbaij);CHKERRQ(ierr); 29*c4762a1bSJed Brown if (size == 1 && !issbaij) { 30*c4762a1bSJed Brown ierr = MatGetFactor(A,MATSOLVERPETSC,MAT_FACTOR_LU,&F);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = MatFactorInfoInitialize(&info);CHKERRQ(ierr); 32*c4762a1bSJed Brown ierr = ISCreateStride(PETSC_COMM_SELF,m,0,1,&perm);CHKERRQ(ierr); 33*c4762a1bSJed Brown ierr = MatLUFactorSymbolic(F,A,perm,perm,&info);CHKERRQ(ierr); 34*c4762a1bSJed Brown ierr = MatLUFactorNumeric(F,A,&info);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = MatDestroy(&F);CHKERRQ(ierr); 36*c4762a1bSJed Brown ierr = ISDestroy(&perm);CHKERRQ(ierr); 37*c4762a1bSJed Brown } 38*c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = PetscFinalize(); 40*c4762a1bSJed Brown return ierr; 41*c4762a1bSJed Brown } 42*c4762a1bSJed Brown 43*c4762a1bSJed Brown /*TEST 44*c4762a1bSJed Brown 45*c4762a1bSJed Brown test: 46*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 47*c4762a1bSJed Brown args: -info 48*c4762a1bSJed Brown filter: grep malloc | sort -b 49*c4762a1bSJed Brown 50*c4762a1bSJed Brown test: 51*c4762a1bSJed Brown suffix: 2 52*c4762a1bSJed Brown nsize: 2 53*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 54*c4762a1bSJed Brown args: -info ex182info 55*c4762a1bSJed Brown filter: grep -h malloc "ex182info.0" | sort -b 56*c4762a1bSJed Brown 57*c4762a1bSJed Brown test: 58*c4762a1bSJed Brown suffix: 3 59*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 60*c4762a1bSJed Brown args: -info -mat_type baij 61*c4762a1bSJed Brown filter: grep malloc | sort -b 62*c4762a1bSJed Brown 63*c4762a1bSJed Brown test: 64*c4762a1bSJed Brown suffix: 4 65*c4762a1bSJed Brown nsize: 2 66*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 67*c4762a1bSJed Brown args: -info ex182info -mat_type baij 68*c4762a1bSJed Brown filter: grep -h malloc "ex182info.1" | sort -b 69*c4762a1bSJed Brown 70*c4762a1bSJed Brown test: 71*c4762a1bSJed Brown suffix: 5 72*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 73*c4762a1bSJed Brown args: -info -mat_type sbaij 74*c4762a1bSJed Brown filter: grep malloc | sort -b 75*c4762a1bSJed Brown 76*c4762a1bSJed Brown test: 77*c4762a1bSJed Brown suffix: 6 78*c4762a1bSJed Brown nsize: 2 79*c4762a1bSJed Brown requires: define(PETSC_USE_INFO) 80*c4762a1bSJed Brown args: -info ex182info -mat_type sbaij 81*c4762a1bSJed Brown filter: grep -h malloc "ex182info.0" | sort -b 82*c4762a1bSJed Brown 83*c4762a1bSJed Brown TEST*/ 84