1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Test MatAXPY and SUBSET_NONZERO_PATTERN [-different] [-skip]\n by default subset pattern is used \n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown /* A test contributed by Jose E. Roman, Oct. 2014 */ 5c4762a1bSJed Brown 6c4762a1bSJed Brown #include <petscmat.h> 7c4762a1bSJed Brown 8c4762a1bSJed Brown int main(int argc,char **args) 9c4762a1bSJed Brown { 10c4762a1bSJed Brown Mat A,B,C; 11c4762a1bSJed Brown PetscBool different=PETSC_FALSE,skip=PETSC_FALSE; 12c4762a1bSJed Brown PetscInt m0,m1,n=128,i; 13c4762a1bSJed Brown 14*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&args,(char*)0,help)); 15*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL,NULL,"-different",&different,NULL)); 16*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL,NULL,"-skip",&skip,NULL)); 17c4762a1bSJed Brown /* 18c4762a1bSJed Brown Create matrices 19c4762a1bSJed Brown A = tridiag(1,-2,1) and B = diag(7); 20c4762a1bSJed Brown */ 21*9566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&A)); 22*9566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&B)); 23*9566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n)); 24*9566063dSJacob Faibussowitsch PetscCall(MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,n,n)); 25*9566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(A)); 26*9566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(B)); 27*9566063dSJacob Faibussowitsch PetscCall(MatSetUp(A)); 28*9566063dSJacob Faibussowitsch PetscCall(MatSetUp(B)); 29*9566063dSJacob Faibussowitsch PetscCall(MatGetOwnershipRange(A,&m0,&m1)); 30c4762a1bSJed Brown for (i=m0;i<m1;i++) { 31*9566063dSJacob Faibussowitsch if (i>0) PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES)); 32*9566063dSJacob Faibussowitsch if (i<n-1) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES)); 33*9566063dSJacob Faibussowitsch PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES)); 34*9566063dSJacob Faibussowitsch PetscCall(MatSetValue(B,i,i,7.0,INSERT_VALUES)); 35c4762a1bSJed Brown } 36*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 37*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 38*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY)); 39*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY)); 40c4762a1bSJed Brown 41*9566063dSJacob Faibussowitsch PetscCall(MatDuplicate(A,MAT_COPY_VALUES,&C)); 42c4762a1bSJed Brown /* Add B */ 43*9566063dSJacob Faibussowitsch PetscCall(MatAXPY(C,1.0,B,(different)?DIFFERENT_NONZERO_PATTERN:SUBSET_NONZERO_PATTERN)); 44c4762a1bSJed Brown /* Add A */ 45*9566063dSJacob Faibussowitsch if (!skip) PetscCall(MatAXPY(C,1.0,A,SUBSET_NONZERO_PATTERN)); 46c4762a1bSJed Brown 47c4762a1bSJed Brown /* 48c4762a1bSJed Brown Free memory 49c4762a1bSJed Brown */ 50*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A)); 51*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B)); 52*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 53*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 54b122ec5aSJacob Faibussowitsch return 0; 55c4762a1bSJed Brown } 56c4762a1bSJed Brown 57c4762a1bSJed Brown /*TEST 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown nsize: 4 61c4762a1bSJed Brown output_file: output/ex172.out 62c4762a1bSJed Brown 63c4762a1bSJed Brown test: 64c4762a1bSJed Brown suffix: 2 65c4762a1bSJed Brown nsize: 4 66c4762a1bSJed Brown args: -different 67c4762a1bSJed Brown output_file: output/ex172.out 68c4762a1bSJed Brown 69c4762a1bSJed Brown test: 70c4762a1bSJed Brown suffix: 3 71c4762a1bSJed Brown nsize: 4 72c4762a1bSJed Brown args: -skip 73c4762a1bSJed Brown output_file: output/ex172.out 74c4762a1bSJed Brown 75c4762a1bSJed Brown test: 76c4762a1bSJed Brown suffix: 4 77c4762a1bSJed Brown nsize: 4 78c4762a1bSJed Brown args: -different -skip 79c4762a1bSJed Brown output_file: output/ex172.out 80c4762a1bSJed Brown 81c4762a1bSJed Brown test: 82c4762a1bSJed Brown suffix: baij 83c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1 84c4762a1bSJed Brown output_file: output/ex172.out 85c4762a1bSJed Brown 86c4762a1bSJed Brown test: 87c4762a1bSJed Brown suffix: mpibaij 88c4762a1bSJed Brown nsize: 4 89c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1 90c4762a1bSJed Brown output_file: output/ex172.out 91c4762a1bSJed Brown 92c4762a1bSJed Brown test: 93c4762a1bSJed Brown suffix: mpisbaij 94c4762a1bSJed Brown nsize: 4 95c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1 96c4762a1bSJed Brown output_file: output/ex172.out 97c4762a1bSJed Brown 98c4762a1bSJed Brown test: 99c4762a1bSJed Brown suffix: sbaij 100c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1 101c4762a1bSJed Brown output_file: output/ex172.out 102c4762a1bSJed Brown 103c4762a1bSJed Brown TEST*/ 104