xref: /petsc/src/mat/tests/ex254.c (revision 7487cd7ca1dddf3cbc146be559ee2e39856c5efc)
1 static char help[] = "Test MatSetValuesCOO for MPIAIJ and its subclasses \n\n";
2 
3 #include <petscmat.h>
4 int main(int argc,char **args)
5 {
6   PetscErrorCode  ierr;
7   Mat             A,B;
8   PetscInt        k;
9   const PetscInt  M = 18,N = 18;
10   PetscMPIInt     rank,size;
11   PetscBool       equal;
12   PetscScalar     *vals;
13   PetscBool       flg = PETSC_FALSE;
14 
15   /* Construct 18 x 18 matrices, which are big enough to have complex communication patterns but still small enough for debugging */
16   PetscInt i0[] = {7, 7, 8, 8,  9, 16, 17,  9, 10, 1, 1, -2, 2, 3, 3, 14, 4, 5, 10, 13,  9,  9, 10, 1, 0, 0, 5,   5, 6, 6, 13, 13, 14, -14, 4, 4, 5, 11, 11, 12, 15, 15, 16};
17   PetscInt j0[] = {1, 6, 2, 4, 10, 15, 13, 16, 11, 2, 7,  3, 8, 4, 9, 13, 5, 2, 15, 14, 10, 16, 11, 2, 0, 1, 6, -11, 0, 7, 15, 17, 11,  13, 5, 8, 2, 12, 17, 13,  3, 16,  9};
18 
19   PetscInt i1[] = {8, 5, 15, 16, 6, 13, 4, 17, 8,  9,  9, 10, -6, 12, 7, 3, -4, 1, 1, 2, 5, 5,  6, 14, 17, 8,  9,  9, 10, 4,  5, 10, 11, 1, 2};
20   PetscInt j1[] = {2, 3, 16,  9, 5, 17, 1, 13, 4, 10, 16, 11, -5, 12, 1, 7, -1, 2, 7, 3, 6, 11, 0, 11, 13, 4, 10, 16, 11, 8, -2, 15, 12, 7, 3};
21 
22   PetscInt i2[] = {3, 4, 1, 10, 0, 1, 1, 2, 1, 1, 2, 2, 3, 3, 4, 4, 1, 2, 5, 5,  6, 4, 17, 0, 1, 1, 8, 5, 5,  6, 4, 7, 8, 5};
23   PetscInt j2[] = {7, 1, 2, 11, 5, 2, 7, 3, 2, 7, 3, 8, 4, 9, 3, 5, 7, 3, 6, 11, 0, 1, 13, 5, 2, 7, 4, 6, 11, 0, 1, 3, 4, 2};
24 
25   struct {
26     PetscInt *i,*j,n;
27   } coo[3] = {{i0,j0,sizeof(i0)/sizeof(PetscInt)}, {i1,j1,sizeof(i1)/sizeof(PetscInt)}, {i2,j2,sizeof(i2)/sizeof(PetscInt)}};
28 
29   ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr;
30   ierr = PetscOptionsGetBool(NULL,NULL,"-ignore_remote",&flg,NULL);CHKERRQ(ierr);
31   ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRMPI(ierr);
32   ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRMPI(ierr);
33 
34   PetscCheckFalse(size > 3,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"This test requires at most 3 processes");
35 
36   ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr);
37   ierr = MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,M,N);
38   ierr = MatSetType(A,MATAIJ);CHKERRQ(ierr);
39   ierr = MatSeqAIJSetPreallocation(A,2,NULL);
40   ierr = MatMPIAIJSetPreallocation(A,2,NULL,2,NULL);CHKERRQ(ierr);
41   ierr = MatSetOption(A,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr);
42   ierr = MatSetOption(A,MAT_IGNORE_OFF_PROC_ENTRIES,flg);CHKERRQ(ierr);
43 
44   for (k=0; k<coo[rank].n; k++) {
45     PetscScalar val = coo[rank].j[k];
46     ierr = MatSetValue(A,coo[rank].i[k],coo[rank].j[k],val,ADD_VALUES);CHKERRQ(ierr);
47   }
48   ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
49   ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
50 
51   ierr = MatCreate(PETSC_COMM_WORLD,&B);CHKERRQ(ierr);
52   ierr = MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,M,N);
53   ierr = MatSetFromOptions(B);CHKERRQ(ierr);
54   ierr = MatSetOption(B,MAT_IGNORE_OFF_PROC_ENTRIES,flg);CHKERRQ(ierr);
55   ierr = MatSetPreallocationCOO(B,coo[rank].n,coo[rank].i,coo[rank].j);CHKERRQ(ierr);
56 
57   ierr = PetscMalloc1(coo[rank].n,&vals);CHKERRQ(ierr);
58   for (k=0; k<coo[rank].n; k++) vals[k] = coo[rank].j[k];
59   ierr = MatSetValuesCOO(B,vals,ADD_VALUES);CHKERRQ(ierr);
60 
61   ierr = MatEqual(A,B,&equal);CHKERRQ(ierr);
62 
63   if (!equal) {
64     ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
65     ierr = MatView(B,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
66     SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"MatSetValuesCOO() failed");
67   }
68 
69   ierr = PetscFree(vals);CHKERRQ(ierr);
70   ierr = MatDestroy(&A);CHKERRQ(ierr);
71   ierr = MatDestroy(&B);CHKERRQ(ierr);
72 
73   ierr = PetscFinalize();
74   return ierr;
75 }
76 
77 /*TEST
78 
79   testset:
80     output_file: output/ex254_1.out
81     nsize: {{1 2 3}}
82     args: -ignore_remote {{0 1}}
83 
84     test:
85       suffix: kokkos
86       requires: kokkos_kernels
87       args: -mat_type aijkokkos
88 
89     test:
90       suffix: cuda
91       requires: cuda
92       args: -mat_type aijcusparse
93 
94     test:
95       suffix: aij
96       args: -mat_type aij
97 
98 TEST*/
99 
100