diff options
Diffstat (limited to 'blas/level2_cplx_impl.h')
-rw-r--r-- | blas/level2_cplx_impl.h | 125 |
1 files changed, 112 insertions, 13 deletions
diff --git a/blas/level2_cplx_impl.h b/blas/level2_cplx_impl.h index 477f6d649..f52d384a9 100644 --- a/blas/level2_cplx_impl.h +++ b/blas/level2_cplx_impl.h @@ -18,6 +18,21 @@ */ int EIGEN_BLAS_FUNC(hemv)(char *uplo, int *n, RealScalar *palpha, RealScalar *pa, int *lda, RealScalar *px, int *incx, RealScalar *pbeta, RealScalar *py, int *incy) { + typedef void (*functype)(int, const Scalar*, int, const Scalar*, int, Scalar*, Scalar); + static functype func[2]; + + static bool init = false; + if(!init) + { + for(int k=0; k<2; ++k) + func[k] = 0; + + func[UP] = (internal::selfadjoint_matrix_vector_product<Scalar,int,ColMajor,Upper,false,false>::run); + func[LO] = (internal::selfadjoint_matrix_vector_product<Scalar,int,ColMajor,Lower,false,false>::run); + + init = true; + } + Scalar* a = reinterpret_cast<Scalar*>(pa); Scalar* x = reinterpret_cast<Scalar*>(px); Scalar* y = reinterpret_cast<Scalar*>(py); @@ -48,9 +63,11 @@ int EIGEN_BLAS_FUNC(hemv)(char *uplo, int *n, RealScalar *palpha, RealScalar *pa if(alpha!=Scalar(0)) { - // TODO performs a direct call to the underlying implementation function - if(UPLO(*uplo)==UP) vector(actual_y,*n).noalias() += matrix(a,*n,*n,*lda).selfadjointView<Upper>() * (alpha * vector(actual_x,*n)); - else if(UPLO(*uplo)==LO) vector(actual_y,*n).noalias() += matrix(a,*n,*n,*lda).selfadjointView<Lower>() * (alpha * vector(actual_x,*n)); + int code = UPLO(*uplo); + if(code>=2 || func[code]==0) + return 0; + + func[code](*n, a, *lda, actual_x, 1, actual_y, alpha); } if(actual_x!=x) delete[] actual_x; @@ -91,10 +108,49 @@ int EIGEN_BLAS_FUNC(hemv)(char *uplo, int *n, RealScalar *palpha, RealScalar *pa * where alpha is a real scalar, x is an n element vector and A is an * n by n hermitian matrix, supplied in packed form. */ -// int EIGEN_BLAS_FUNC(hpr)(char *uplo, int *n, RealScalar *alpha, RealScalar *x, int *incx, RealScalar *ap) -// { -// return 1; -// } +int EIGEN_BLAS_FUNC(hpr)(char *uplo, int *n, RealScalar *palpha, RealScalar *px, int *incx, RealScalar *pap) +{ + typedef void (*functype)(int, Scalar*, const Scalar*, RealScalar); + static functype func[2]; + + static bool init = false; + if(!init) + { + for(int k=0; k<2; ++k) + func[k] = 0; + + func[UP] = (internal::selfadjoint_packed_rank1_update<Scalar,int,ColMajor,Upper,false,Conj>::run); + func[LO] = (internal::selfadjoint_packed_rank1_update<Scalar,int,ColMajor,Lower,false,Conj>::run); + + init = true; + } + + Scalar* x = reinterpret_cast<Scalar*>(px); + Scalar* ap = reinterpret_cast<Scalar*>(pap); + RealScalar alpha = *palpha; + + int info = 0; + if(UPLO(*uplo)==INVALID) info = 1; + else if(*n<0) info = 2; + else if(*incx==0) info = 5; + if(info) + return xerbla_(SCALAR_SUFFIX_UP"HPR ",&info,6); + + if(alpha==Scalar(0)) + return 1; + + Scalar* x_cpy = get_compact_vector(x, *n, *incx); + + int code = UPLO(*uplo); + if(code>=2 || func[code]==0) + return 0; + + func[code](*n, ap, x_cpy, alpha); + + if(x_cpy!=x) delete[] x_cpy; + + return 1; +} /** ZHPR2 performs the hermitian rank 2 operation * @@ -103,10 +159,53 @@ int EIGEN_BLAS_FUNC(hemv)(char *uplo, int *n, RealScalar *palpha, RealScalar *pa * where alpha is a scalar, x and y are n element vectors and A is an * n by n hermitian matrix, supplied in packed form. */ -// int EIGEN_BLAS_FUNC(hpr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *x, int *incx, RealScalar *y, int *incy, RealScalar *ap) -// { -// return 1; -// } +int EIGEN_BLAS_FUNC(hpr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px, int *incx, RealScalar *py, int *incy, RealScalar *pap) +{ + typedef void (*functype)(int, Scalar*, const Scalar*, const Scalar*, Scalar); + static functype func[2]; + + static bool init = false; + if(!init) + { + for(int k=0; k<2; ++k) + func[k] = 0; + + func[UP] = (internal::packed_rank2_update_selector<Scalar,int,Upper>::run); + func[LO] = (internal::packed_rank2_update_selector<Scalar,int,Lower>::run); + + init = true; + } + + Scalar* x = reinterpret_cast<Scalar*>(px); + Scalar* y = reinterpret_cast<Scalar*>(py); + Scalar* ap = reinterpret_cast<Scalar*>(pap); + Scalar alpha = *reinterpret_cast<Scalar*>(palpha); + + int info = 0; + if(UPLO(*uplo)==INVALID) info = 1; + else if(*n<0) info = 2; + else if(*incx==0) info = 5; + else if(*incy==0) info = 7; + if(info) + return xerbla_(SCALAR_SUFFIX_UP"HPR2 ",&info,6); + + if(alpha==Scalar(0)) + return 1; + + Scalar* x_cpy = get_compact_vector(x, *n, *incx); + Scalar* y_cpy = get_compact_vector(y, *n, *incy); + + int code = UPLO(*uplo); + if(code>=2 || func[code]==0) + return 0; + + func[code](*n, ap, x_cpy, y_cpy, alpha); + + if(x_cpy!=x) delete[] x_cpy; + if(y_cpy!=y) delete[] y_cpy; + + return 1; +} /** ZHER performs the hermitian rank 1 operation * @@ -249,7 +348,7 @@ int EIGEN_BLAS_FUNC(geru)(int *m, int *n, RealScalar *palpha, RealScalar *px, in Scalar* x_cpy = get_compact_vector(x,*m,*incx); Scalar* y_cpy = get_compact_vector(y,*n,*incy); - internal::general_rank1_update<Scalar,int,false>::run(*m, *n, a, *lda, x_cpy, y_cpy, alpha); + internal::general_rank1_update<Scalar,int,ColMajor,false,false>::run(*m, *n, a, *lda, x_cpy, y_cpy, alpha); if(x_cpy!=x) delete[] x_cpy; if(y_cpy!=y) delete[] y_cpy; @@ -286,7 +385,7 @@ int EIGEN_BLAS_FUNC(gerc)(int *m, int *n, RealScalar *palpha, RealScalar *px, in Scalar* x_cpy = get_compact_vector(x,*m,*incx); Scalar* y_cpy = get_compact_vector(y,*n,*incy); - internal::general_rank1_update<Scalar,int,Conj>::run(*m, *n, a, *lda, x_cpy, y_cpy, alpha); + internal::general_rank1_update<Scalar,int,ColMajor,false,Conj>::run(*m, *n, a, *lda, x_cpy, y_cpy, alpha); if(x_cpy!=x) delete[] x_cpy; if(y_cpy!=y) delete[] y_cpy; |