Actual source code: ex177.c
petsc-3.13.6 2020-09-29
2: static char help[] = "Tests various routines in MatKAIJ format.\n";
4: #include <petscmat.h>
5: #define IMAX 15
7: int main(int argc,char **args)
8: {
9: Mat A,B,TA;
10: PetscScalar *S,*T;
11: PetscViewer fd;
12: char file[PETSC_MAX_PATH_LEN];
13: PetscInt m,n,M,N,p=1,q=1,i,j;
14: PetscMPIInt rank,size;
16: PetscBool flg;
18: PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr;
19: MPI_Comm_rank(PETSC_COMM_WORLD,&rank);
20: MPI_Comm_size(PETSC_COMM_WORLD,&size);
22: /* Load AIJ matrix A */
23: PetscOptionsGetString(NULL,NULL,"-f",file,PETSC_MAX_PATH_LEN,&flg);
24: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_USER,"Must indicate binary file with the -f option");
25: PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&fd);
26: MatCreate(PETSC_COMM_WORLD,&A);
27: MatLoad(A,fd);
28: PetscViewerDestroy(&fd);
30: /* Get dof, then create S and T */
31: PetscOptionsGetInt(NULL,NULL,"-p",&p,NULL);
32: PetscOptionsGetInt(NULL,NULL,"-q",&q,NULL);
33: PetscMalloc2(p*q,&S,p*q,&T);
34: for (i=0; i<p*q; i++) S[i] = 0;
36: for (i=0; i<p; i++) {
37: for (j=0; j<q; j++) {
38: /* Set some random non-zero values */
39: S[i+p*j] = ((PetscReal) ((i+1)*(j+1))) / ((PetscReal) (p+q));
40: T[i+p*j] = ((PetscReal) ((p-i)+j)) / ((PetscReal) (p*q));
41: }
42: }
44: /* Test KAIJ when both S & T are not NULL */
46: /* Create KAIJ matrix TA */
47: MatCreateKAIJ(A,p,q,S,T,&TA);
48: MatGetLocalSize(A,&m,&n);
49: MatGetSize(A,&M,&N);
51: MatConvert(TA,MATAIJ,MAT_INITIAL_MATRIX,&B);
53: /* Test MatKAIJGetScaledIdentity() */
54: MatKAIJGetScaledIdentity(TA,&flg);
55: if (flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 1: MatKAIJGetScaledIdentity()");
56: /* Test MatMult() */
57: MatMultEqual(TA,B,10,&flg);
58: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 1: MatMult() for KAIJ matrix");
59: /* Test MatMultAdd() */
60: MatMultAddEqual(TA,B,10,&flg);
61: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 1: MatMultAdd() for KAIJ matrix");
63: MatDestroy(&TA);
64: MatDestroy(&B);
66: /* Test KAIJ when S is NULL */
68: /* Create KAIJ matrix TA */
69: MatCreateKAIJ(A,p,q,NULL,T,&TA);
70: MatGetLocalSize(A,&m,&n);
71: MatGetSize(A,&M,&N);
73: MatConvert(TA,MATAIJ,MAT_INITIAL_MATRIX,&B);
75: /* Test MatKAIJGetScaledIdentity() */
76: MatKAIJGetScaledIdentity(TA,&flg);
77: if (flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 2: MatKAIJGetScaledIdentity()");
78: /* Test MatMult() */
79: MatMultEqual(TA,B,10,&flg);
80: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 2: MatMult() for KAIJ matrix");
81: /* Test MatMultAdd() */
82: MatMultAddEqual(TA,B,10,&flg);
83: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 2: MatMultAdd() for KAIJ matrix");
85: MatDestroy(&TA);
86: MatDestroy(&B);
88: /* Test KAIJ when T is NULL */
90: /* Create KAIJ matrix TA */
91: MatCreateKAIJ(A,p,q,S,NULL,&TA);
92: MatGetLocalSize(A,&m,&n);
93: MatGetSize(A,&M,&N);
95: MatConvert(TA,MATAIJ,MAT_INITIAL_MATRIX,&B);
97: /* Test MatKAIJGetScaledIdentity() */
98: MatKAIJGetScaledIdentity(TA,&flg);
99: if (flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 3: MatKAIJGetScaledIdentity()");
100: /* Test MatMult() */
101: MatMultEqual(TA,B,10,&flg);
102: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 3: MatMult() for KAIJ matrix");
103: /* Test MatMultAdd() */
104: MatMultAddEqual(TA,B,10,&flg);
105: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 3: MatMultAdd() for KAIJ matrix");
107: MatDestroy(&TA);
108: MatDestroy(&B);
110: /* Test KAIJ when T is is an identity matrix */
112: if (p == q) {
113: for (i=0; i<p; i++) {
114: for (j=0; j<q; j++) {
115: if (i==j) T[i+j*p] = 1.0;
116: else T[i+j*p] = 0.0;
117: }
118: }
120: /* Create KAIJ matrix TA */
121: MatCreateKAIJ(A,p,q,S,T,&TA);
122: MatGetLocalSize(A,&m,&n);
123: MatGetSize(A,&M,&N);
125: MatConvert(TA,MATAIJ,MAT_INITIAL_MATRIX,&B);
127: /* Test MatKAIJGetScaledIdentity() */
128: MatKAIJGetScaledIdentity(TA,&flg);
129: if (flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 4: MatKAIJGetScaledIdentity()");
130: /* Test MatMult() */
131: MatMultEqual(TA,B,10,&flg);
132: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 4: MatMult() for KAIJ matrix");
133: /* Test MatMultAdd() */
134: MatMultAddEqual(TA,B,10,&flg);
135: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error in Test 4: MatMultAdd() for KAIJ matrix");
137: MatDestroy(&TA);
138: MatDestroy(&B);
140: MatCreateKAIJ(A,p,q,NULL,T,&TA);
141: /* Test MatKAIJGetScaledIdentity() */
142: MatKAIJGetScaledIdentity(TA,&flg);
143: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 5: MatKAIJGetScaledIdentity()");
144: MatDestroy(&TA);
146: for (i=0; i<p; i++) {
147: for (j=0; j<q; j++) {
148: if (i==j) S[i+j*p] = T[i+j*p] = 2.0;
149: else S[i+j*p] = T[i+j*p] = 0.0;
150: }
151: }
152: MatCreateKAIJ(A,p,q,S,T,&TA);
153: /* Test MatKAIJGetScaledIdentity() */
154: MatKAIJGetScaledIdentity(TA,&flg);
155: if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Error in Test 6: MatKAIJGetScaledIdentity()");
156: MatDestroy(&TA);
157: }
159: /* Done with all tests */
161: PetscFree2(S,T);
162: MatDestroy(&A);
163: PetscFinalize();
164: return ierr;
165: }
167: /*TEST
169: build:
170: requires: !complex
172: test:
173: requires: datafilespath !complex double !define(PETSC_USE_64BIT_INDICES)
174: output_file: output/ex176.out
175: nsize: {{1 2 3 4}}
176: args: -f ${DATAFILESPATH}/matrices/small -p {{2 3 7}} -q {{3 7}} -viewer_binary_skip_info
178: TEST*/