xref: /petsc/src/mat/tests/ex254.c (revision daa037dfd3c3bec8dc8659548d2b20b07c1dc6de)
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   Mat             A,B;
7   PetscInt        k;
8   const PetscInt  M   = 18,N = 18;
9   PetscMPIInt     rank,size;
10   PetscBool       equal;
11   PetscScalar    *vals;
12   PetscBool       flg = PETSC_FALSE;
13 
14   /* Construct 18 x 18 matrices, which are big enough to have complex communication patterns but still small enough for debugging */
15   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};
16   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, 5, -11, 0, 7, 15, 17, 11,  13, 4, 8, 2, 12, 17, 13,  3, 16,  9};
17 
18   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};
19   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};
20 
21   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};
22   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};
23 
24   struct {
25     PetscInt *i,*j,n;
26   } coo[3] = {{i0,j0,sizeof(i0)/sizeof(PetscInt)}, {i1,j1,sizeof(i1)/sizeof(PetscInt)}, {i2,j2,sizeof(i2)/sizeof(PetscInt)}};
27 
28   PetscCall(PetscInitialize(&argc,&args,(char*)0,help));
29   PetscCall(PetscOptionsGetBool(NULL,NULL,"-ignore_remote",&flg,NULL));
30   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank));
31   PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size));
32 
33   PetscCheck(size <= 3,PETSC_COMM_WORLD,PETSC_ERR_WRONG_MPI_SIZE,"This test requires at most 3 processes");
34 
35   PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
36   PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,M,N));
37   PetscCall(MatSetType(A,MATAIJ));
38   PetscCall(MatSeqAIJSetPreallocation(A,2,NULL));
39   PetscCall(MatMPIAIJSetPreallocation(A,2,NULL,2,NULL));
40   PetscCall(MatSetOption(A,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE));
41   PetscCall(MatSetOption(A,MAT_IGNORE_OFF_PROC_ENTRIES,flg));
42 
43   for (k=0; k<coo[rank].n; k++) {
44     PetscScalar val = coo[rank].j[k];
45     PetscCall(MatSetValue(A,coo[rank].i[k],coo[rank].j[k],val,ADD_VALUES));
46   }
47   PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
48   PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
49 
50   PetscCall(MatCreate(PETSC_COMM_WORLD,&B));
51   PetscCall(MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,M,N));
52   PetscCall(MatSetFromOptions(B));
53   PetscCall(MatSetOption(B,MAT_IGNORE_OFF_PROC_ENTRIES,flg));
54   PetscCall(MatSetPreallocationCOO(B,coo[rank].n,coo[rank].i,coo[rank].j));
55 
56   PetscCall(PetscMalloc1(coo[rank].n,&vals));
57   for (k=0; k<coo[rank].n; k++) vals[k] = coo[rank].j[k];
58   PetscCall(MatSetValuesCOO(B,vals,ADD_VALUES));
59 
60   PetscCall(MatEqual(A,B,&equal));
61 
62   if (!equal) {
63     PetscCall(MatView(A,PETSC_VIEWER_STDOUT_WORLD));
64     PetscCall(MatView(B,PETSC_VIEWER_STDOUT_WORLD));
65     SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"MatSetValuesCOO() failed");
66   }
67 
68   PetscCall(PetscFree(vals));
69   PetscCall(MatDestroy(&A));
70   PetscCall(MatDestroy(&B));
71 
72   PetscCall(PetscFinalize());
73   return 0;
74 }
75 
76 /*TEST
77 
78   testset:
79     output_file: output/ex254_1.out
80     nsize: {{1 2 3}}
81     args: -ignore_remote {{0 1}}
82 
83     test:
84       suffix: kokkos
85       requires: kokkos_kernels
86       args: -mat_type aijkokkos
87 
88     test:
89       suffix: cuda
90       requires: cuda
91       args: -mat_type aijcusparse
92 
93     test:
94       suffix: aij
95       args: -mat_type aij
96 
97   testset:
98     # MATHYPRE does not support MAT_IGNORE_OFF_PROC_ENTRIES yet
99     output_file: output/ex254_1.out
100     nsize: {{1 2 3}}
101     suffix: hypre
102     requires: hypre kokkos_kernels
103     args: -ignore_remote 0 -mat_type hypre
104 
105 TEST*/
106