PETSC_EXTERN void PETSC_STDCALL matcreatebaij_(MPI_Comm *comm,PetscInt *bs,PetscInt *m,PetscInt *n,PetscInt *M,PetscInt *N, PetscInt *d_nz,PetscInt *d_nnz,PetscInt *o_nz,PetscInt *o_nnz,Mat *newmat,PetscErrorCode *ierr) { CHKFORTRANNULLINTEGER(d_nnz); CHKFORTRANNULLINTEGER(o_nnz); *ierr = MatCreateBAIJ(MPI_Comm_f2c(*(MPI_Fint*)&*comm),*bs,*m,*n,*M,*N,*d_nz,d_nnz,*o_nz,o_nnz,newmat); }
int main(int argc,char **args) { Vec x,y,u,s1,s2; Mat A,sA,sB; PetscRandom rctx; PetscReal r1,r2,rnorm,tol = PETSC_SQRT_MACHINE_EPSILON; PetscScalar one=1.0, neg_one=-1.0, value[3], four=4.0,alpha=0.1; PetscInt n,col[3],n1,block,row,i,j,i2,j2,Ii,J,rstart,rend,bs=1,mbs=16,d_nz=3,o_nz=3,prob=2; PetscErrorCode ierr; PetscMPIInt size,rank; PetscBool flg; MatType type; ierr = PetscInitialize(&argc,&args,(char*)0,help); if (ierr) return ierr; ierr = PetscOptionsGetInt(NULL,NULL,"-mbs",&mbs,NULL); CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-bs",&bs,NULL); CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank); CHKERRQ(ierr); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size); CHKERRQ(ierr); n = mbs*bs; /* Assemble MPISBAIJ matrix sA */ ierr = MatCreate(PETSC_COMM_WORLD,&sA); CHKERRQ(ierr); ierr = MatSetSizes(sA,PETSC_DECIDE,PETSC_DECIDE,n,n); CHKERRQ(ierr); ierr = MatSetType(sA,MATSBAIJ); CHKERRQ(ierr); ierr = MatSetFromOptions(sA); CHKERRQ(ierr); ierr = MatGetType(sA,&type); CHKERRQ(ierr); ierr = MatMPISBAIJSetPreallocation(sA,bs,d_nz,NULL,o_nz,NULL); CHKERRQ(ierr); ierr = MatSeqSBAIJSetPreallocation(sA,bs,d_nz,NULL); CHKERRQ(ierr); ierr = MatSetOption(sA,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE); CHKERRQ(ierr); if (bs == 1) { if (prob == 1) { /* tridiagonal matrix */ value[0] = -1.0; value[1] = 2.0; value[2] = -1.0; for (i=1; i<n-1; i++) { col[0] = i-1; col[1] = i; col[2] = i+1; ierr = MatSetValues(sA,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } i = n - 1; col[0]=0; col[1] = n - 2; col[2] = n - 1; value[0]= 0.1; value[1]=-1; value[2]=2; ierr = MatSetValues(sA,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); i = 0; col[0] = 0; col[1] = 1; col[2]=n-1; value[0] = 2.0; value[1] = -1.0; value[2]=0.1; ierr = MatSetValues(sA,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } else if (prob ==2) { /* matrix for the five point stencil */ n1 = (int) PetscSqrtReal((PetscReal)n); if (n1*n1 != n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"n must be a perfect square of n1"); for (i=0; i<n1; i++) { for (j=0; j<n1; j++) { Ii = j + n1*i; if (i>0) { J = Ii - n1; ierr = MatSetValues(sA,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (i<n1-1) { J = Ii + n1; ierr = MatSetValues(sA,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (j>0) { J = Ii - 1; ierr = MatSetValues(sA,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (j<n1-1) { J = Ii + 1; ierr = MatSetValues(sA,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } ierr = MatSetValues(sA,1,&Ii,1,&Ii,&four,INSERT_VALUES); CHKERRQ(ierr); } } } /* end of if (bs == 1) */ } else { /* bs > 1 */ for (block=0; block<n/bs; block++) { /* diagonal blocks */ value[0] = -1.0; value[1] = 4.0; value[2] = -1.0; for (i=1+block*bs; i<bs-1+block*bs; i++) { col[0] = i-1; col[1] = i; col[2] = i+1; ierr = MatSetValues(sA,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } i = bs - 1+block*bs; col[0] = bs - 2+block*bs; col[1] = bs - 1+block*bs; value[0]=-1.0; value[1]=4.0; ierr = MatSetValues(sA,1,&i,2,col,value,INSERT_VALUES); CHKERRQ(ierr); i = 0+block*bs; col[0] = 0+block*bs; col[1] = 1+block*bs; value[0]=4.0; value[1] = -1.0; ierr = MatSetValues(sA,1,&i,2,col,value,INSERT_VALUES); CHKERRQ(ierr); } /* off-diagonal blocks */ value[0]=-1.0; for (i=0; i<(n/bs-1)*bs; i++) { col[0]=i+bs; ierr = MatSetValues(sA,1,&i,1,col,value,INSERT_VALUES); CHKERRQ(ierr); col[0]=i; row=i+bs; ierr = MatSetValues(sA,1,&row,1,col,value,INSERT_VALUES); CHKERRQ(ierr); } } ierr = MatAssemblyBegin(sA,MAT_FINAL_ASSEMBLY); CHKERRQ(ierr); ierr = MatAssemblyEnd(sA,MAT_FINAL_ASSEMBLY); CHKERRQ(ierr); /* Test MatView() */ ierr = MatCreateBAIJ(PETSC_COMM_WORLD,bs,PETSC_DECIDE,PETSC_DECIDE,n,n,d_nz,NULL,o_nz,NULL,&A); CHKERRQ(ierr); ierr = MatSetOption(A,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE); CHKERRQ(ierr); if (bs == 1) { if (prob == 1) { /* tridiagonal matrix */ value[0] = -1.0; value[1] = 2.0; value[2] = -1.0; for (i=1; i<n-1; i++) { col[0] = i-1; col[1] = i; col[2] = i+1; ierr = MatSetValues(A,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } i = n - 1; col[0]=0; col[1] = n - 2; col[2] = n - 1; value[0]= 0.1; value[1]=-1; value[2]=2; ierr = MatSetValues(A,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); i = 0; col[0] = 0; col[1] = 1; col[2]=n-1; value[0] = 2.0; value[1] = -1.0; value[2]=0.1; ierr = MatSetValues(A,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } else if (prob ==2) { /* matrix for the five point stencil */ n1 = (int) PetscSqrtReal((PetscReal)n); for (i=0; i<n1; i++) { for (j=0; j<n1; j++) { Ii = j + n1*i; if (i>0) { J = Ii - n1; ierr = MatSetValues(A,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (i<n1-1) { J = Ii + n1; ierr = MatSetValues(A,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (j>0) { J = Ii - 1; ierr = MatSetValues(A,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } if (j<n1-1) { J = Ii + 1; ierr = MatSetValues(A,1,&Ii,1,&J,&neg_one,INSERT_VALUES); CHKERRQ(ierr); } ierr = MatSetValues(A,1,&Ii,1,&Ii,&four,INSERT_VALUES); CHKERRQ(ierr); } } } /* end of if (bs == 1) */ } else { /* bs > 1 */ for (block=0; block<n/bs; block++) { /* diagonal blocks */ value[0] = -1.0; value[1] = 4.0; value[2] = -1.0; for (i=1+block*bs; i<bs-1+block*bs; i++) { col[0] = i-1; col[1] = i; col[2] = i+1; ierr = MatSetValues(A,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr); } i = bs - 1+block*bs; col[0] = bs - 2+block*bs; col[1] = bs - 1+block*bs; value[0]=-1.0; value[1]=4.0; ierr = MatSetValues(A,1,&i,2,col,value,INSERT_VALUES); CHKERRQ(ierr); i = 0+block*bs; col[0] = 0+block*bs; col[1] = 1+block*bs; value[0]=4.0; value[1] = -1.0; ierr = MatSetValues(A,1,&i,2,col,value,INSERT_VALUES); CHKERRQ(ierr); } /* off-diagonal blocks */ value[0]=-1.0; for (i=0; i<(n/bs-1)*bs; i++) { col[0]=i+bs; ierr = MatSetValues(A,1,&i,1,col,value,INSERT_VALUES); CHKERRQ(ierr); col[0]=i; row=i+bs; ierr = MatSetValues(A,1,&row,1,col,value,INSERT_VALUES); CHKERRQ(ierr); } } ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY); CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY); CHKERRQ(ierr); /* Test MatGetSize(), MatGetLocalSize() */ ierr = MatGetSize(sA, &i,&j); CHKERRQ(ierr); ierr = MatGetSize(A, &i2,&j2); CHKERRQ(ierr); i -= i2; j -= j2; if (i || j) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatGetSize()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } ierr = MatGetLocalSize(sA, &i,&j); CHKERRQ(ierr); ierr = MatGetLocalSize(A, &i2,&j2); CHKERRQ(ierr); i2 -= i; j2 -= j; if (i2 || j2) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatGetLocalSize()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } /* vectors */ /*--------------------*/ /* i is obtained from MatGetLocalSize() */ ierr = VecCreate(PETSC_COMM_WORLD,&x); CHKERRQ(ierr); ierr = VecSetSizes(x,i,PETSC_DECIDE); CHKERRQ(ierr); ierr = VecSetFromOptions(x); CHKERRQ(ierr); ierr = VecDuplicate(x,&y); CHKERRQ(ierr); ierr = VecDuplicate(x,&u); CHKERRQ(ierr); ierr = VecDuplicate(x,&s1); CHKERRQ(ierr); ierr = VecDuplicate(x,&s2); CHKERRQ(ierr); ierr = PetscRandomCreate(PETSC_COMM_WORLD,&rctx); CHKERRQ(ierr); ierr = PetscRandomSetFromOptions(rctx); CHKERRQ(ierr); ierr = VecSetRandom(x,rctx); CHKERRQ(ierr); ierr = VecSet(u,one); CHKERRQ(ierr); /* Test MatNorm() */ ierr = MatNorm(A,NORM_FROBENIUS,&r1); CHKERRQ(ierr); ierr = MatNorm(sA,NORM_FROBENIUS,&r2); CHKERRQ(ierr); rnorm = PetscAbsReal(r1-r2)/r2; if (rnorm > tol && !rank) { ierr = PetscPrintf(PETSC_COMM_SELF,"Error: MatNorm_FROBENIUS(), Anorm=%16.14e, sAnorm=%16.14e bs=%D\n",r1,r2,bs); CHKERRQ(ierr); } ierr = MatNorm(A,NORM_INFINITY,&r1); CHKERRQ(ierr); ierr = MatNorm(sA,NORM_INFINITY,&r2); CHKERRQ(ierr); rnorm = PetscAbsReal(r1-r2)/r2; if (rnorm > tol && !rank) { ierr = PetscPrintf(PETSC_COMM_WORLD,"Error: MatNorm_INFINITY(), Anorm=%16.14e, sAnorm=%16.14e bs=%D\n",r1,r2,bs); CHKERRQ(ierr); } ierr = MatNorm(A,NORM_1,&r1); CHKERRQ(ierr); ierr = MatNorm(sA,NORM_1,&r2); CHKERRQ(ierr); rnorm = PetscAbsReal(r1-r2)/r2; if (rnorm > tol && !rank) { ierr = PetscPrintf(PETSC_COMM_WORLD,"Error: MatNorm_1(), Anorm=%16.14e, sAnorm=%16.14e bs=%D\n",r1,r2,bs); CHKERRQ(ierr); } /* Test MatGetOwnershipRange() */ ierr = MatGetOwnershipRange(sA,&rstart,&rend); CHKERRQ(ierr); ierr = MatGetOwnershipRange(A,&i2,&j2); CHKERRQ(ierr); i2 -= rstart; j2 -= rend; if (i2 || j2) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MaGetOwnershipRange()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } /* Test MatDiagonalScale() */ ierr = MatDiagonalScale(A,x,x); CHKERRQ(ierr); ierr = MatDiagonalScale(sA,x,x); CHKERRQ(ierr); ierr = MatMultEqual(A,sA,10,&flg); CHKERRQ(ierr); if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in MatDiagonalScale"); /* Test MatGetDiagonal(), MatScale() */ ierr = MatGetDiagonal(A,s1); CHKERRQ(ierr); ierr = MatGetDiagonal(sA,s2); CHKERRQ(ierr); ierr = VecNorm(s1,NORM_1,&r1); CHKERRQ(ierr); ierr = VecNorm(s2,NORM_1,&r2); CHKERRQ(ierr); r1 -= r2; if (r1<-tol || r1>tol) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatDiagonalScale() or MatGetDiagonal(), r1=%g \n",rank,(double)r1); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } ierr = MatScale(A,alpha); CHKERRQ(ierr); ierr = MatScale(sA,alpha); CHKERRQ(ierr); /* Test MatGetRowMaxAbs() */ ierr = MatGetRowMaxAbs(A,s1,NULL); CHKERRQ(ierr); ierr = MatGetRowMaxAbs(sA,s2,NULL); CHKERRQ(ierr); ierr = VecNorm(s1,NORM_1,&r1); CHKERRQ(ierr); ierr = VecNorm(s2,NORM_1,&r2); CHKERRQ(ierr); r1 -= r2; if (r1<-tol || r1>tol) { ierr = PetscPrintf(PETSC_COMM_SELF,"Error: MatGetRowMaxAbs() \n"); CHKERRQ(ierr); } /* Test MatMult(), MatMultAdd() */ ierr = MatMultEqual(A,sA,10,&flg); CHKERRQ(ierr); if (!flg) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatMult() or MatScale()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } ierr = MatMultAddEqual(A,sA,10,&flg); CHKERRQ(ierr); if (!flg) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatMultAdd()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } /* Test MatMultTranspose(), MatMultTransposeAdd() */ for (i=0; i<10; i++) { ierr = VecSetRandom(x,rctx); CHKERRQ(ierr); ierr = MatMultTranspose(A,x,s1); CHKERRQ(ierr); ierr = MatMultTranspose(sA,x,s2); CHKERRQ(ierr); ierr = VecNorm(s1,NORM_1,&r1); CHKERRQ(ierr); ierr = VecNorm(s2,NORM_1,&r2); CHKERRQ(ierr); r1 -= r2; if (r1<-tol || r1>tol) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatMult() or MatScale(), err=%g\n",rank,(double)r1); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } } for (i=0; i<10; i++) { ierr = VecSetRandom(x,rctx); CHKERRQ(ierr); ierr = VecSetRandom(y,rctx); CHKERRQ(ierr); ierr = MatMultTransposeAdd(A,x,y,s1); CHKERRQ(ierr); ierr = MatMultTransposeAdd(sA,x,y,s2); CHKERRQ(ierr); ierr = VecNorm(s1,NORM_1,&r1); CHKERRQ(ierr); ierr = VecNorm(s2,NORM_1,&r2); CHKERRQ(ierr); r1 -= r2; if (r1<-tol || r1>tol) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatMultAdd(), err=%g \n",rank,(double)r1); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } } /* Test MatDuplicate() */ ierr = MatDuplicate(sA,MAT_COPY_VALUES,&sB); CHKERRQ(ierr); ierr = MatEqual(sA,sB,&flg); CHKERRQ(ierr); if (!flg) { ierr = PetscPrintf(PETSC_COMM_WORLD," Error in MatDuplicate(), sA != sB \n"); CHKERRQ(ierr); CHKERRQ(ierr); } ierr = MatMultEqual(sA,sB,5,&flg); CHKERRQ(ierr); if (!flg) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatDuplicate() or MatMult()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } ierr = MatMultAddEqual(sA,sB,5,&flg); CHKERRQ(ierr); if (!flg) { ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d], Error: MatDuplicate() or MatMultAdd(()\n",rank); CHKERRQ(ierr); ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT); CHKERRQ(ierr); } ierr = MatDestroy(&sB); CHKERRQ(ierr); ierr = VecDestroy(&u); CHKERRQ(ierr); ierr = VecDestroy(&x); CHKERRQ(ierr); ierr = VecDestroy(&y); CHKERRQ(ierr); ierr = VecDestroy(&s1); CHKERRQ(ierr); ierr = VecDestroy(&s2); CHKERRQ(ierr); ierr = MatDestroy(&sA); CHKERRQ(ierr); ierr = MatDestroy(&A); CHKERRQ(ierr); ierr = PetscRandomDestroy(&rctx); CHKERRQ(ierr); ierr = PetscFinalize(); return ierr; }
int main(int argc,char **args) { Mat C,A,B,D; PetscErrorCode ierr; PetscInt i,j,ntypes,bs,mbs,m,block,d_nz=6, o_nz=3,col[3],row,verbose=0; PetscMPIInt size,rank; const MatType type[9]; char file[PETSC_MAX_PATH_LEN]; PetscViewer fd; PetscBool equal,flg_loadmat,flg; PetscScalar value[3]; PetscInitialize(&argc,&args,(char *)0,help); ierr = PetscOptionsGetInt(PETSC_NULL,"-verbose",&verbose,PETSC_NULL);CHKERRQ(ierr); ierr = PetscOptionsGetString(PETSC_NULL,"-f",file,PETSC_MAX_PATH_LEN,&flg_loadmat);CHKERRQ(ierr); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = PetscOptionsHasName(PETSC_NULL,"-testseqaij",&flg);CHKERRQ(ierr); if (flg){ if (size == 1){ type[0] = MATSEQAIJ; } else { type[0] = MATMPIAIJ; } } else { type[0] = MATAIJ; } if (size == 1){ ntypes = 3; type[1] = MATSEQBAIJ; type[2] = MATSEQSBAIJ; } else { ntypes = 3; type[1] = MATMPIBAIJ; type[2] = MATMPISBAIJ; } /* input matrix C */ if (flg_loadmat){ /* Open binary file. */ ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&fd);CHKERRQ(ierr); /* Load a baij matrix, then destroy the viewer. */ ierr = MatCreate(PETSC_COMM_WORLD,&C);CHKERRQ(ierr); if (size == 1){ ierr = MatSetType(C,MATSEQBAIJ);CHKERRQ(ierr); } else { ierr = MatSetType(C,MATMPIBAIJ);CHKERRQ(ierr); } ierr = MatLoad(C,fd);CHKERRQ(ierr); ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr); } else { /* Create a baij mat with bs>1 */ bs = 2; mbs=8; ierr = PetscOptionsGetInt(PETSC_NULL,"-mbs",&mbs,PETSC_NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(PETSC_NULL,"-bs",&bs,PETSC_NULL);CHKERRQ(ierr); if (bs <= 1) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG," bs must be >1 in this case"); m = mbs*bs; ierr = MatCreateBAIJ(PETSC_COMM_WORLD,bs,PETSC_DECIDE,PETSC_DECIDE,m,m,d_nz,PETSC_NULL,o_nz,PETSC_NULL,&C);CHKERRQ(ierr); for (block=0; block<mbs; block++){ /* diagonal blocks */ value[0] = -1.0; value[1] = 4.0; value[2] = -1.0; for (i=1+block*bs; i<bs-1+block*bs; i++) { col[0] = i-1; col[1] = i; col[2] = i+1; ierr = MatSetValues(C,1,&i,3,col,value,INSERT_VALUES);CHKERRQ(ierr); } i = bs - 1+block*bs; col[0] = bs - 2+block*bs; col[1] = bs - 1+block*bs; value[0]=-1.0; value[1]=4.0; ierr = MatSetValues(C,1,&i,2,col,value,INSERT_VALUES);CHKERRQ(ierr); i = 0+block*bs; col[0] = 0+block*bs; col[1] = 1+block*bs; value[0]=4.0; value[1] = -1.0; ierr = MatSetValues(C,1,&i,2,col,value,INSERT_VALUES);CHKERRQ(ierr); } /* off-diagonal blocks */ value[0]=-1.0; for (i=0; i<(mbs-1)*bs; i++){ col[0]=i+bs; ierr = MatSetValues(C,1,&i,1,col,value,INSERT_VALUES);CHKERRQ(ierr); col[0]=i; row=i+bs; ierr = MatSetValues(C,1,&row,1,col,value,INSERT_VALUES);CHKERRQ(ierr); } ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); } { /* Check the symmetry of C because it will be converted to a sbaij matrix */ Mat Ctrans; ierr = MatTranspose(C, MAT_INITIAL_MATRIX,&Ctrans); ierr = MatEqual(C, Ctrans, &flg);CHKERRQ(ierr); if (flg) { ierr = MatSetOption(C,MAT_SYMMETRIC,PETSC_TRUE);CHKERRQ(ierr); } else { SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"C must be symmetric for this example"); } ierr = MatDestroy(&Ctrans);CHKERRQ(ierr); } //ierr = MatView(C,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); /* convert C to other formats */ for (i=0; i<ntypes; i++) { ierr = MatConvert(C,type[i],MAT_INITIAL_MATRIX,&A);CHKERRQ(ierr); ierr = MatMultEqual(A,C,10,&equal);CHKERRQ(ierr); if (!equal) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from BAIJ to %s",type[i]); for (j=i+1; j<ntypes; j++) { if (verbose>0) { ierr = PetscPrintf(PETSC_COMM_WORLD," \n[%d] test conversion between %s and %s\n",rank,type[i],type[j]);CHKERRQ(ierr); } if (!rank && verbose) printf("Convert %s A to %s B\n",type[i],type[j]); ierr = MatConvert(A,type[j],MAT_INITIAL_MATRIX,&B);CHKERRQ(ierr); /* if (j == 2){ ierr = PetscPrintf(PETSC_COMM_SELF," A: %s\n",type[i]);CHKERRQ(ierr); ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscPrintf(PETSC_COMM_SELF," B: %s\n",type[j]);CHKERRQ(ierr); ierr = MatView(B,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); } */ ierr = MatMultEqual(A,B,10,&equal);CHKERRQ(ierr); if (!equal) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from %s to %s",type[i],type[j]); if (size == 1 || j != 2){ /* Matconvert from mpisbaij mat to other formats are not supported */ if (!rank && verbose) printf("Convert %s B to %s D\n",type[j],type[i]); ierr = MatConvert(B,type[i],MAT_INITIAL_MATRIX,&D);CHKERRQ(ierr); ierr = MatMultEqual(B,D,10,&equal);CHKERRQ(ierr); if (!equal) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from %s to %s",type[j],type[i]); ierr = MatDestroy(&D);CHKERRQ(ierr); } ierr = MatDestroy(&B);CHKERRQ(ierr); ierr = MatDestroy(&D);CHKERRQ(ierr); } /* Test in-place convert */ if (size == 1){ /* size > 1 is not working yet! */ j = (i+1)%ntypes; /* printf("[%d] i: %d, j: %d\n",rank,i,j); */ ierr = MatConvert(A,type[j],MAT_REUSE_MATRIX,&A);CHKERRQ(ierr); } ierr = MatDestroy(&A);CHKERRQ(ierr); } ierr = MatDestroy(&C);CHKERRQ(ierr); ierr = PetscFinalize(); return 0; }
int main(int argc,char **args) { Mat A; PetscInt bs=3,m=4,n=6,i,j,val = 10,row[2],col[3],eval,rstart; PetscErrorCode ierr; PetscMPIInt size,rank; PetscScalar x[6][9],y[3][3],one=1.0; PetscBool flg,testsbaij=PETSC_FALSE; PetscInitialize(&argc,&args,(char*)0,help); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = PetscOptionsHasName(NULL,"-test_mat_sbaij",&testsbaij);CHKERRQ(ierr); if (testsbaij) { ierr = MatCreateSBAIJ(PETSC_COMM_WORLD,bs,m*bs,n*bs,PETSC_DECIDE,PETSC_DECIDE,1,NULL,1,NULL,&A);CHKERRQ(ierr); } else { ierr = MatCreateBAIJ(PETSC_COMM_WORLD,bs,m*bs,n*bs,PETSC_DECIDE,PETSC_DECIDE,1,NULL,1,NULL,&A);CHKERRQ(ierr); } ierr = MatSetOption(A,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); eval = 9; ierr = PetscOptionsHasName(NULL,"-ass_extern",&flg);CHKERRQ(ierr); if (flg && (size != 1)) rstart = m*((rank+1)%size); else rstart = m*(rank); row[0] =rstart+0; row[1] =rstart+2; col[0] =rstart+0; col[1] =rstart+1; col[2] =rstart+3; for (i=0; i<6; i++) { for (j =0; j< 9; j++) x[i][j] = (PetscScalar)val++; } ierr = MatSetValuesBlocked(A,2,row,3,col,&x[0][0],INSERT_VALUES);CHKERRQ(ierr); ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); /* This option does not work for rectangular matrices ierr = MatSetOption(A,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); */ ierr = MatSetValuesBlocked(A,2,row,3,col,&x[0][0],INSERT_VALUES);CHKERRQ(ierr); /* Do another MatSetValues to test the case when only one local block is specified */ for (i=0; i<3; i++) { for (j =0; j<3; j++) y[i][j] = (PetscScalar)(10 + i*eval + j); } ierr = MatSetValuesBlocked(A,1,row,1,col,&y[0][0],INSERT_VALUES);CHKERRQ(ierr); ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = PetscOptionsHasName(NULL,"-zero_rows",&flg);CHKERRQ(ierr); if (flg) { col[0] = rstart*bs+0; col[1] = rstart*bs+1; col[2] = rstart*bs+2; ierr = MatZeroRows(A,3,col,one,0,0);CHKERRQ(ierr); } ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = MatDestroy(&A);CHKERRQ(ierr); ierr = PetscFinalize(); return 0; }
int main(int argc,char **args) { Mat A; PetscInt m=2,bs=1,M,row,col,start,end,i,j,k; PetscErrorCode ierr; PetscMPIInt rank,size; PetscScalar data=100; PetscBool flg; ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); /* Test MatSetValues() and MatGetValues() */ ierr = PetscOptionsGetInt(NULL,NULL,"-mat_block_size",&bs,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-mat_size",&m,NULL);CHKERRQ(ierr); M = m*bs*size; ierr = MatCreateBAIJ(PETSC_COMM_WORLD,bs,PETSC_DECIDE,PETSC_DECIDE,M,M,PETSC_DECIDE,NULL,PETSC_DECIDE,NULL,&A);CHKERRQ(ierr); ierr = MatGetOwnershipRange(A,&start,&end);CHKERRQ(ierr); ierr = PetscOptionsHasName(NULL,NULL,"-column_oriented",&flg);CHKERRQ(ierr); if (flg) { ierr = MatSetOption(A,MAT_ROW_ORIENTED,PETSC_FALSE);CHKERRQ(ierr); } /* inproc assembly */ for (row=start; row<end; row++) { for (col=start; col<end; col++,data+=1) { ierr = MatSetValues(A,1,&row,1,&col,&data,INSERT_VALUES);CHKERRQ(ierr); } } ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); /* offproc assembly */ data = 5.0; row = (M+start-1)%M; for (col=0; col<M; col++) { ierr = MatSetValues(A,1,&row,1,&col,&data,ADD_VALUES);CHKERRQ(ierr); } ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); /* Test MatSetValuesBlocked() */ ierr = PetscOptionsHasName(NULL,NULL,"-test_setvaluesblocked",&flg);CHKERRQ(ierr); if (flg) { PetscScalar *bval; row /= bs; col = start/bs; ierr = PetscMalloc1(bs*bs,&bval);CHKERRQ(ierr); k = 1; /* row oriented - defalt */ for (i=0; i<bs; i++) { for (j=0; j<bs; j++) { bval[i*bs+j] = (PetscScalar)k; k++; } } ierr = MatSetValuesBlocked(A,1,&row,1,&col,bval,INSERT_VALUES);CHKERRQ(ierr); ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = PetscFree(bval);CHKERRQ(ierr); } ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = MatDestroy(&A);CHKERRQ(ierr); ierr = PetscFinalize(); return ierr; }