1 static char help[] = "Tests MATSEQDENSECUDA\n\n"; 2 3 #include <petscmat.h> 4 5 int main(int argc, char **argv) 6 { 7 Mat A, AC, B; 8 PetscInt m = 10, n = 10; 9 PetscReal r, tol = 10 * PETSC_SMALL; 10 11 PetscFunctionBeginUser; 12 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 13 PetscCall(PetscOptionsGetInt(NULL, NULL, "-m", &m, NULL)); 14 PetscCall(PetscOptionsGetInt(NULL, NULL, "-n", &n, NULL)); 15 PetscCall(MatCreate(PETSC_COMM_SELF, &A)); 16 PetscCall(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, m, n)); 17 PetscCall(MatSetType(A, MATSEQDENSE)); 18 PetscCall(MatSetFromOptions(A)); 19 PetscCall(MatSeqDenseSetPreallocation(A, NULL)); 20 PetscCall(MatSetRandom(A, NULL)); 21 #if 0 22 PetscInt i,j; 23 PetscScalar val; 24 for (i=0; i<m; i++) { 25 for (j=0; j<n; j++) { 26 val = (PetscScalar)(i+j); 27 PetscCall(MatSetValues(A,1,&i,1,&j,&val,INSERT_VALUES)); 28 } 29 } 30 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 31 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 32 #endif 33 34 /* Create a CUDA version of A */ 35 #if defined(PETSC_HAVE_CUDA) 36 PetscCall(MatConvert(A, MATSEQDENSECUDA, MAT_INITIAL_MATRIX, &AC)); 37 #else 38 PetscCall(MatDuplicate(A, MAT_COPY_VALUES, &AC)); 39 #endif 40 PetscCall(MatDuplicate(AC, MAT_COPY_VALUES, &B)); 41 42 /* full CUDA AXPY */ 43 PetscCall(MatAXPY(B, -1.0, AC, SAME_NONZERO_PATTERN)); 44 PetscCall(MatNorm(B, NORM_INFINITY, &r)); 45 PetscCheck(r == 0.0, PetscObjectComm((PetscObject)B), PETSC_ERR_PLIB, "Error MatDuplicate + MatCopy + MatAXPY %g", (double)r); 46 47 /* test Copy */ 48 PetscCall(MatCopy(AC, B, SAME_NONZERO_PATTERN)); 49 50 /* call MatAXPY_Basic since B is CUDA, A is CPU, */ 51 PetscCall(MatAXPY(B, -1.0, A, SAME_NONZERO_PATTERN)); 52 PetscCall(MatNorm(B, NORM_INFINITY, &r)); 53 PetscCheck(r == 0.0, PetscObjectComm((PetscObject)B), PETSC_ERR_PLIB, "Error MatDuplicate + MatCopy + MatAXPY_Basic %g", (double)r); 54 55 if (m == n) { 56 Mat B1, B2; 57 58 PetscCall(MatCopy(AC, B, SAME_NONZERO_PATTERN)); 59 /* full CUDA PtAP */ 60 PetscCall(MatPtAP(B, AC, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &B1)); 61 62 /* CPU PtAP since A is on the CPU only */ 63 PetscCall(MatPtAP(B, A, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &B2)); 64 65 PetscCall(MatAXPY(B2, -1.0, B1, SAME_NONZERO_PATTERN)); 66 PetscCall(MatNorm(B2, NORM_INFINITY, &r)); 67 PetscCheck(r <= tol, PetscObjectComm((PetscObject)B), PETSC_ERR_PLIB, "Error MatPtAP %g", (double)r); 68 69 /* test reuse */ 70 PetscCall(MatPtAP(B, AC, MAT_REUSE_MATRIX, PETSC_DEFAULT, &B1)); 71 PetscCall(MatPtAP(B, A, MAT_REUSE_MATRIX, PETSC_DEFAULT, &B2)); 72 PetscCall(MatAXPY(B2, -1.0, B1, SAME_NONZERO_PATTERN)); 73 PetscCall(MatNorm(B2, NORM_INFINITY, &r)); 74 PetscCheck(r <= tol, PetscObjectComm((PetscObject)B), PETSC_ERR_PLIB, "Error MatPtAP %g", (double)r); 75 76 PetscCall(MatDestroy(&B1)); 77 PetscCall(MatDestroy(&B2)); 78 } 79 80 PetscCall(MatDestroy(&B)); 81 PetscCall(MatDestroy(&AC)); 82 PetscCall(MatDestroy(&A)); 83 PetscCall(PetscFinalize()); 84 return 0; 85 } 86 87 /*TEST 88 89 build: 90 requires: cuda 91 92 test: 93 output_file: output/ex32_1.out 94 args: -m {{3 5 12}} -n {{3 5 12}} 95 suffix: seqdensecuda 96 97 TEST*/ 98