1 2 static char help[] = "Tests MATSEQDENSECUDA\n\n"; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **argv) 7 { 8 Mat A,AC,B; 9 PetscInt m = 10,n = 10; 10 PetscReal r,tol = 10*PETSC_SMALL; 11 12 PetscFunctionBeginUser; 13 PetscCall(PetscInitialize(&argc,&argv,(char*) 0,help)); 14 PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 15 PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 16 PetscCall(MatCreate(PETSC_COMM_SELF,&A)); 17 PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,m,n)); 18 PetscCall(MatSetType(A,MATSEQDENSE)); 19 PetscCall(MatSetFromOptions(A)); 20 PetscCall(MatSeqDenseSetPreallocation(A,NULL)); 21 PetscCall(MatSetRandom(A,NULL)); 22 #if 0 23 PetscInt i,j; 24 PetscScalar val; 25 for (i=0; i<m; i++) { 26 for (j=0; j<n; j++) { 27 val = (PetscScalar)(i+j); 28 PetscCall(MatSetValues(A,1,&i,1,&j,&val,INSERT_VALUES)); 29 } 30 } 31 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 32 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 33 #endif 34 35 /* Create a CUDA version of A */ 36 #if defined(PETSC_HAVE_CUDA) 37 PetscCall(MatConvert(A,MATSEQDENSECUDA,MAT_INITIAL_MATRIX,&AC)); 38 #else 39 PetscCall(MatDuplicate(A,MAT_COPY_VALUES,&AC)); 40 #endif 41 PetscCall(MatDuplicate(AC,MAT_COPY_VALUES,&B)); 42 43 /* full CUDA AXPY */ 44 PetscCall(MatAXPY(B,-1.0,AC,SAME_NONZERO_PATTERN)); 45 PetscCall(MatNorm(B,NORM_INFINITY,&r)); 46 PetscCheck(r == 0.0,PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatDuplicate + MatCopy + MatAXPY %g",(double)r); 47 48 /* test Copy */ 49 PetscCall(MatCopy(AC,B,SAME_NONZERO_PATTERN)); 50 51 /* call MatAXPY_Basic since B is CUDA, A is CPU, */ 52 PetscCall(MatAXPY(B,-1.0,A,SAME_NONZERO_PATTERN)); 53 PetscCall(MatNorm(B,NORM_INFINITY,&r)); 54 PetscCheck(r == 0.0,PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatDuplicate + MatCopy + MatAXPY_Basic %g",(double)r); 55 56 if (m == n) { 57 Mat B1,B2; 58 59 PetscCall(MatCopy(AC,B,SAME_NONZERO_PATTERN)); 60 /* full CUDA PtAP */ 61 PetscCall(MatPtAP(B,AC,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&B1)); 62 63 /* CPU PtAP since A is on the CPU only */ 64 PetscCall(MatPtAP(B,A,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&B2)); 65 66 PetscCall(MatAXPY(B2,-1.0,B1,SAME_NONZERO_PATTERN)); 67 PetscCall(MatNorm(B2,NORM_INFINITY,&r)); 68 PetscCheck(r <= tol,PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatPtAP %g",(double)r); 69 70 /* test reuse */ 71 PetscCall(MatPtAP(B,AC,MAT_REUSE_MATRIX,PETSC_DEFAULT,&B1)); 72 PetscCall(MatPtAP(B,A,MAT_REUSE_MATRIX,PETSC_DEFAULT,&B2)); 73 PetscCall(MatAXPY(B2,-1.0,B1,SAME_NONZERO_PATTERN)); 74 PetscCall(MatNorm(B2,NORM_INFINITY,&r)); 75 PetscCheck(r <= tol,PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatPtAP %g",(double)r); 76 77 PetscCall(MatDestroy(&B1)); 78 PetscCall(MatDestroy(&B2)); 79 } 80 81 PetscCall(MatDestroy(&B)); 82 PetscCall(MatDestroy(&AC)); 83 PetscCall(MatDestroy(&A)); 84 PetscCall(PetscFinalize()); 85 return 0; 86 } 87 88 /*TEST 89 90 build: 91 requires: cuda 92 93 test: 94 output_file: output/ex32_1.out 95 args: -m {{3 5 12}} -n {{3 5 12}} 96 suffix: seqdensecuda 97 98 TEST*/ 99