| |
| #define BLAS_FUNC(NAME) CAT(CAT(SCALAR_PREFIX,NAME),_) |
| |
| template<> class blas_interface<SCALAR> : public c_interface_base<SCALAR> |
| { |
| |
| public : |
| |
| static SCALAR fone; |
| static SCALAR fzero; |
| |
| static inline std::string name() |
| { |
| return MAKE_STRING(CBLASNAME); |
| } |
| |
| static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ |
| BLAS_FUNC(gemv)(¬rans,&N,&N,&fone,A,&N,B,&intone,&fzero,X,&intone); |
| } |
| |
| static inline void symv(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ |
| BLAS_FUNC(symv)(&lower, &N,&fone,A,&N,B,&intone,&fzero,X,&intone); |
| } |
| |
| static inline void syr2(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ |
| BLAS_FUNC(syr2)(&lower,&N,&fone,B,&intone,X,&intone,A,&N); |
| } |
| |
| static inline void ger(gene_matrix & A, gene_vector & X, gene_vector & Y, int N){ |
| BLAS_FUNC(ger)(&N,&N,&fone,X,&intone,Y,&intone,A,&N); |
| } |
| |
| static inline void rot(gene_vector & A, gene_vector & B, SCALAR c, SCALAR s, int N){ |
| BLAS_FUNC(rot)(&N,A,&intone,B,&intone,&c,&s); |
| } |
| |
| static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ |
| BLAS_FUNC(gemv)(&trans,&N,&N,&fone,A,&N,B,&intone,&fzero,X,&intone); |
| } |
| |
| static inline void matrix_matrix_product(gene_matrix & A, gene_matrix & B, gene_matrix & X, int N){ |
| BLAS_FUNC(gemm)(¬rans,¬rans,&N,&N,&N,&fone,A,&N,B,&N,&fzero,X,&N); |
| } |
| |
| static inline void transposed_matrix_matrix_product(gene_matrix & A, gene_matrix & B, gene_matrix & X, int N){ |
| BLAS_FUNC(gemm)(¬rans,¬rans,&N,&N,&N,&fone,A,&N,B,&N,&fzero,X,&N); |
| } |
| |
| // static inline void ata_product(gene_matrix & A, gene_matrix & X, int N){ |
| // ssyrk_(&lower,&trans,&N,&N,&fone,A,&N,&fzero,X,&N); |
| // } |
| |
| static inline void aat_product(gene_matrix & A, gene_matrix & X, int N){ |
| BLAS_FUNC(syrk)(&lower,¬rans,&N,&N,&fone,A,&N,&fzero,X,&N); |
| } |
| |
| static inline void axpy(SCALAR coef, const gene_vector & X, gene_vector & Y, int N){ |
| BLAS_FUNC(axpy)(&N,&coef,X,&intone,Y,&intone); |
| } |
| |
| static inline void axpby(SCALAR a, const gene_vector & X, SCALAR b, gene_vector & Y, int N){ |
| BLAS_FUNC(scal)(&N,&b,Y,&intone); |
| BLAS_FUNC(axpy)(&N,&a,X,&intone,Y,&intone); |
| } |
| |
| static inline void cholesky(const gene_matrix & X, gene_matrix & C, int N){ |
| int N2 = N*N; |
| BLAS_FUNC(copy)(&N2, X, &intone, C, &intone); |
| char uplo = 'L'; |
| int info = 0; |
| BLAS_FUNC(potrf)(&uplo, &N, C, &N, &info); |
| if(info!=0) std::cerr << "potrf_ error " << info << "\n"; |
| } |
| |
| static inline void partial_lu_decomp(const gene_matrix & X, gene_matrix & C, int N){ |
| int N2 = N*N; |
| BLAS_FUNC(copy)(&N2, X, &intone, C, &intone); |
| int info = 0; |
| int * ipiv = (int*)alloca(sizeof(int)*N); |
| BLAS_FUNC(getrf)(&N, &N, C, &N, ipiv, &info); |
| if(info!=0) std::cerr << "getrf_ error " << info << "\n"; |
| } |
| |
| static inline void trisolve_lower(const gene_matrix & L, const gene_vector& B, gene_vector & X, int N){ |
| BLAS_FUNC(copy)(&N, B, &intone, X, &intone); |
| BLAS_FUNC(trsv)(&lower, ¬rans, &nonunit, &N, L, &N, X, &intone); |
| } |
| |
| static inline void trisolve_lower_matrix(const gene_matrix & L, const gene_matrix& B, gene_matrix & X, int N){ |
| BLAS_FUNC(copy)(&N, B, &intone, X, &intone); |
| BLAS_FUNC(trsm)(&right, &lower, ¬rans, &nonunit, &N, &N, &fone, L, &N, X, &N); |
| } |
| |
| static inline void trmm(gene_matrix & A, gene_matrix & B, gene_matrix & /*X*/, int N){ |
| BLAS_FUNC(trmm)(&left, &lower, ¬rans,&nonunit, &N,&N,&fone,A,&N,B,&N); |
| } |
| |
| #ifdef HAS_LAPACK |
| |
| static inline void lu_decomp(const gene_matrix & X, gene_matrix & C, int N){ |
| int N2 = N*N; |
| BLAS_FUNC(copy)(&N2, X, &intone, C, &intone); |
| int info = 0; |
| int * ipiv = (int*)alloca(sizeof(int)*N); |
| int * jpiv = (int*)alloca(sizeof(int)*N); |
| BLAS_FUNC(getc2)(&N, C, &N, ipiv, jpiv, &info); |
| } |
| |
| |
| |
| static inline void hessenberg(const gene_matrix & X, gene_matrix & C, int N){ |
| { |
| int N2 = N*N; |
| int inc = 1; |
| BLAS_FUNC(copy)(&N2, X, &inc, C, &inc); |
| } |
| int info = 0; |
| int ilo = 1; |
| int ihi = N; |
| int bsize = 64; |
| int worksize = N*bsize; |
| SCALAR* d = new SCALAR[N+worksize]; |
| BLAS_FUNC(gehrd)(&N, &ilo, &ihi, C, &N, d, d+N, &worksize, &info); |
| delete[] d; |
| } |
| |
| static inline void tridiagonalization(const gene_matrix & X, gene_matrix & C, int N){ |
| { |
| int N2 = N*N; |
| int inc = 1; |
| BLAS_FUNC(copy)(&N2, X, &inc, C, &inc); |
| } |
| char uplo = 'U'; |
| int info = 0; |
| int bsize = 64; |
| int worksize = N*bsize; |
| SCALAR* d = new SCALAR[3*N+worksize]; |
| BLAS_FUNC(sytrd)(&uplo, &N, C, &N, d, d+N, d+2*N, d+3*N, &worksize, &info); |
| delete[] d; |
| } |
| |
| #endif // HAS_LAPACK |
| |
| }; |
| |
| SCALAR blas_interface<SCALAR>::fone = SCALAR(1); |
| SCALAR blas_interface<SCALAR>::fzero = SCALAR(0); |