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 PetscErrorCode ierr; 10 PetscInt m = 10,n = 10; 11 PetscReal r,tol = 10*PETSC_SMALL; 12 13 ierr = PetscInitialize(&argc,&argv,(char*) 0,help);if (ierr) return ierr; 14 ierr = PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL);CHKERRQ(ierr); 15 ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr); 16 ierr = MatCreate(PETSC_COMM_SELF,&A);CHKERRQ(ierr); 17 ierr = MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,m,n);CHKERRQ(ierr); 18 ierr = MatSetType(A,MATSEQDENSE);CHKERRQ(ierr); 19 ierr = MatSetFromOptions(A);CHKERRQ(ierr); 20 ierr = MatSeqDenseSetPreallocation(A,NULL);CHKERRQ(ierr); 21 ierr = MatSetRandom(A,NULL);CHKERRQ(ierr); 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 ierr = MatSetValues(A,1,&i,1,&j,&val,INSERT_VALUES);CHKERRQ(ierr); 29 } 30 } 31 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 32 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 33 #endif 34 35 /* Create a CUDA version of A */ 36 #if defined(PETSC_HAVE_CUDA) 37 ierr = MatConvert(A,MATSEQDENSECUDA,MAT_INITIAL_MATRIX,&AC);CHKERRQ(ierr); 38 #else 39 ierr = MatDuplicate(A,MAT_COPY_VALUES,&AC);CHKERRQ(ierr); 40 #endif 41 ierr = MatDuplicate(AC,MAT_COPY_VALUES,&B);CHKERRQ(ierr); 42 43 /* full CUDA AXPY */ 44 ierr = MatAXPY(B,-1.0,AC,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 45 ierr = MatNorm(B,NORM_INFINITY,&r);CHKERRQ(ierr); 46 if (r != 0.0) SETERRQ1(PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatDuplicate + MatCopy + MatAXPY %g",(double)r); 47 48 /* test Copy */ 49 ierr = MatCopy(AC,B,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 50 51 /* call MatAXPY_Basic since B is CUDA, A is CPU, */ 52 ierr = MatAXPY(B,-1.0,A,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 53 ierr = MatNorm(B,NORM_INFINITY,&r);CHKERRQ(ierr); 54 if (r != 0.0) SETERRQ1(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 ierr = MatCopy(AC,B,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 60 /* full CUDA PtAP */ 61 ierr = MatPtAP(B,AC,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&B1);CHKERRQ(ierr); 62 63 /* CPU PtAP since A is on the CPU only */ 64 ierr = MatPtAP(B,A,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&B2);CHKERRQ(ierr); 65 66 ierr = MatAXPY(B2,-1.0,B1,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 67 ierr = MatNorm(B2,NORM_INFINITY,&r);CHKERRQ(ierr); 68 if (r > tol) SETERRQ1(PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatPtAP %g",(double)r); 69 70 /* test reuse */ 71 ierr = MatPtAP(B,AC,MAT_REUSE_MATRIX,PETSC_DEFAULT,&B1);CHKERRQ(ierr); 72 ierr = MatPtAP(B,A,MAT_REUSE_MATRIX,PETSC_DEFAULT,&B2);CHKERRQ(ierr); 73 ierr = MatAXPY(B2,-1.0,B1,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 74 ierr = MatNorm(B2,NORM_INFINITY,&r);CHKERRQ(ierr); 75 if (r > tol) SETERRQ1(PetscObjectComm((PetscObject)B),PETSC_ERR_PLIB,"Error MatPtAP %g",(double)r); 76 77 ierr = MatDestroy(&B1);CHKERRQ(ierr); 78 ierr = MatDestroy(&B2);CHKERRQ(ierr); 79 } 80 81 ierr = MatDestroy(&B);CHKERRQ(ierr); 82 ierr = MatDestroy(&AC);CHKERRQ(ierr); 83 ierr = MatDestroy(&A);CHKERRQ(ierr); 84 ierr = PetscFinalize(); 85 return ierr; 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