1*c17cf699SJunchao Zhang static char help[] = "Test MatAXPY \n\n"; 2*c17cf699SJunchao Zhang 3*c17cf699SJunchao Zhang #include <petscmat.h> 4*c17cf699SJunchao Zhang int main(int argc,char **args) 5*c17cf699SJunchao Zhang { 6*c17cf699SJunchao Zhang Mat A=NULL,B=NULL; 7*c17cf699SJunchao Zhang PetscErrorCode ierr; 8*c17cf699SJunchao Zhang PetscInt k; 9*c17cf699SJunchao Zhang const PetscInt M = 18,N = 18; 10*c17cf699SJunchao Zhang PetscMPIInt rank; 11*c17cf699SJunchao Zhang 12*c17cf699SJunchao Zhang /* A, B are 18 x 18 nonsymmetric matrices. Initially, B's nonzero pattern is a subset of A. 13*c17cf699SJunchao Zhang Big enough to have complex communication patterns but still small enough for debugging. 14*c17cf699SJunchao Zhang */ 15*c17cf699SJunchao Zhang PetscInt Ai[] = {0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17}; 16*c17cf699SJunchao Zhang PetscInt Aj[] = {0, 1, 2, 7, 3, 8, 4, 9, 5, 8, 2, 6, 11, 0, 7, 1, 6, 2, 4, 10, 16, 11, 15, 12, 17, 12, 13, 14, 15, 17, 11, 13, 3, 16, 9, 15, 11, 13}; 17*c17cf699SJunchao Zhang PetscInt Bi[] = {0, 0, 1, 1, 2, 2, 4, 4, 5, 5, 5, 6, 7, 7, 8, 8, 9, 9, 10, 10, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17}; 18*c17cf699SJunchao Zhang PetscInt Bj[] = {0, 1, 2, 7, 3, 8, 5, 8, 2, 6, 11, 0, 1, 6, 2, 4, 10, 16, 11, 15, 12, 13, 14, 17, 11, 13, 3, 16, 9, 15, 11, 13}; 19*c17cf699SJunchao Zhang 20*c17cf699SJunchao Zhang PetscInt Annz = sizeof(Ai)/sizeof(PetscInt); 21*c17cf699SJunchao Zhang PetscInt Bnnz = sizeof(Bi)/sizeof(PetscInt); 22*c17cf699SJunchao Zhang 23*c17cf699SJunchao Zhang ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 24*c17cf699SJunchao Zhang ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRMPI(ierr); 25*c17cf699SJunchao Zhang 26*c17cf699SJunchao Zhang ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr); 27*c17cf699SJunchao Zhang ierr = MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,M,N); 28*c17cf699SJunchao Zhang ierr = MatSetFromOptions(A);CHKERRQ(ierr); 29*c17cf699SJunchao Zhang ierr = MatSeqAIJSetPreallocation(A,2,NULL); 30*c17cf699SJunchao Zhang ierr = MatMPIAIJSetPreallocation(A,2,NULL,2,NULL);CHKERRQ(ierr); 31*c17cf699SJunchao Zhang ierr = MatSetOption(A,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); 32*c17cf699SJunchao Zhang 33*c17cf699SJunchao Zhang if (rank == 0) { 34*c17cf699SJunchao Zhang for (k=0; k<Annz; k++) {ierr = MatSetValue(A,Ai[k],Aj[k],Ai[k]+Aj[k]+1.0,INSERT_VALUES);CHKERRQ(ierr);} 35*c17cf699SJunchao Zhang } 36*c17cf699SJunchao Zhang 37*c17cf699SJunchao Zhang ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 38*c17cf699SJunchao Zhang ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 39*c17cf699SJunchao Zhang 40*c17cf699SJunchao Zhang ierr = MatCreate(PETSC_COMM_WORLD,&B);CHKERRQ(ierr); 41*c17cf699SJunchao Zhang ierr = MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,M,N); 42*c17cf699SJunchao Zhang ierr = MatSetFromOptions(B);CHKERRQ(ierr); 43*c17cf699SJunchao Zhang ierr = MatSeqAIJSetPreallocation(B,2,NULL); 44*c17cf699SJunchao Zhang ierr = MatMPIAIJSetPreallocation(B,2,NULL,2,NULL);CHKERRQ(ierr); 45*c17cf699SJunchao Zhang ierr = MatSetOption(B,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); 46*c17cf699SJunchao Zhang 47*c17cf699SJunchao Zhang if (rank == 0) { 48*c17cf699SJunchao Zhang for (k=0; k<Bnnz; k++) {ierr = MatSetValue(B,Bi[k],Bj[k],Bi[k]+Bj[k]+2.0,INSERT_VALUES);CHKERRQ(ierr);} 49*c17cf699SJunchao Zhang } 50*c17cf699SJunchao Zhang ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 51*c17cf699SJunchao Zhang ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 52*c17cf699SJunchao Zhang 53*c17cf699SJunchao Zhang ierr = MatAXPY(A,1.0,B,SUBSET_NONZERO_PATTERN);CHKERRQ(ierr); /* A += B */ 54*c17cf699SJunchao Zhang ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 55*c17cf699SJunchao Zhang 56*c17cf699SJunchao Zhang /* Blow up B so it will have the same nonzero pattern as A */ 57*c17cf699SJunchao Zhang ierr = MatAXPY(B,5,A,DIFFERENT_NONZERO_PATTERN);CHKERRQ(ierr); /* B += 5A */ 58*c17cf699SJunchao Zhang ierr = MatView(B,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 59*c17cf699SJunchao Zhang 60*c17cf699SJunchao Zhang ierr = MatAXPY(A,3,B,SAME_NONZERO_PATTERN);CHKERRQ(ierr); /* A += 7B */ 61*c17cf699SJunchao Zhang ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 62*c17cf699SJunchao Zhang 63*c17cf699SJunchao Zhang ierr = MatDestroy(&A);CHKERRQ(ierr); 64*c17cf699SJunchao Zhang ierr = MatDestroy(&B);CHKERRQ(ierr); 65*c17cf699SJunchao Zhang 66*c17cf699SJunchao Zhang ierr = PetscFinalize(); 67*c17cf699SJunchao Zhang return ierr; 68*c17cf699SJunchao Zhang } 69*c17cf699SJunchao Zhang 70*c17cf699SJunchao Zhang /*TEST 71*c17cf699SJunchao Zhang testset: 72*c17cf699SJunchao Zhang nsize: {{1 2}} 73*c17cf699SJunchao Zhang filter: grep -ve type -ve "Mat Object" 74*c17cf699SJunchao Zhang output_file: output/ex251_1.out 75*c17cf699SJunchao Zhang 76*c17cf699SJunchao Zhang test: 77*c17cf699SJunchao Zhang suffix: 1 78*c17cf699SJunchao Zhang args: -mat_type aij 79*c17cf699SJunchao Zhang 80*c17cf699SJunchao Zhang test: 81*c17cf699SJunchao Zhang suffix: cuda 82*c17cf699SJunchao Zhang requires: cuda 83*c17cf699SJunchao Zhang args: -mat_type aijcusparse 84*c17cf699SJunchao Zhang 85*c17cf699SJunchao Zhang test: 86*c17cf699SJunchao Zhang suffix: kok 87*c17cf699SJunchao Zhang requires: kokkos_kernels 88*c17cf699SJunchao Zhang args: -mat_type aijkokkos 89*c17cf699SJunchao Zhang 90*c17cf699SJunchao Zhang TEST*/ 91*c17cf699SJunchao Zhang 92