atlas Namespace Reference

namespace for ATLAS functions (imported from the global namespace) More...

Functions

template<typename eT >
static const eT & tmp_real (const eT &X)
template<typename T >
static const T & tmp_real (const std::complex< T > &X)
template<typename eT >
arma_inline eT cblas_dot (const int N, const eT *X, const eT *Y)
template<typename eT >
arma_inline eT cx_cblas_dot (const int N, const eT *X, const eT *Y)
template<typename eT >
void cblas_gemv (const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA, const int M, const int N, const eT alpha, const eT *A, const int lda, const eT *X, const int incX, const eT beta, eT *Y, const int incY)
template<typename eT >
void cblas_gemm (const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_TRANSPOSE TransB, const int M, const int N, const int K, const eT alpha, const eT *A, const int lda, const eT *B, const int ldb, const eT beta, eT *C, const int ldc)
template<typename eT >
int clapack_getrf (const enum CBLAS_ORDER Order, const int M, const int N, eT *A, const int lda, int *ipiv)
template<typename eT >
int clapack_getri (const enum CBLAS_ORDER Order, const int N, eT *A, const int lda, const int *ipiv)

Detailed Description

namespace for ATLAS functions (imported from the global namespace)


Function Documentation

template<typename eT >
static const eT& atlas::tmp_real ( const eT &  X  )  [inline, static]

Definition at line 54 of file atlas_proto.hpp.

Referenced by cblas_gemm(), cblas_gemv(), auxlib::inv_inplace(), auxlib::inv_noalias(), and auxlib::qr().

00054 { return X; }

template<typename T >
static const T& atlas::tmp_real ( const std::complex< T > &  X  )  [inline, static]

Definition at line 57 of file atlas_proto.hpp.

00057 { return X.real(); }

template<typename eT >
arma_inline eT atlas::cblas_dot ( const int  N,
const eT *  X,
const eT *  Y 
) [inline]

Definition at line 64 of file atlas_proto.hpp.

Referenced by op_dot::direct_dot().

00065     {
00066     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00067     
00068     if(is_float<eT>::value == true)
00069       {
00070       typedef float T;
00071       return eT( cblas_sdot(N, (const T*)X, 1, (const T*)Y, 1) );
00072       }
00073     else
00074     if(is_double<eT>::value == true)
00075       {
00076       typedef double T;
00077       return eT( cblas_ddot(N, (const T*)X, 1, (const T*)Y, 1) );
00078       }
00079     else
00080       {
00081       return eT(0);
00082       }
00083     }

template<typename eT >
arma_inline eT atlas::cx_cblas_dot ( const int  N,
const eT *  X,
const eT *  Y 
) [inline]

Definition at line 90 of file atlas_proto.hpp.

00091     {
00092     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00093     
00094     if(is_supported_complex_float<eT>::value == true)
00095       {
00096       typedef typename std::complex<float> T;
00097       
00098       T out;    
00099       cblas_cdotu_sub(N, (const T*)X, 1, (const T*)Y, 1, &out);
00100       
00101       return eT(out);
00102       }
00103     else
00104     if(is_supported_complex_double<eT>::value == true)
00105       {
00106       typedef typename std::complex<double> T;
00107       
00108       T out;
00109       cblas_zdotu_sub(N, (const T*)X, 1, (const T*)Y, 1, &out);
00110       
00111       return eT(out);
00112       }
00113     else
00114       {
00115       return eT(0);
00116       }
00117     }

template<typename eT >
void atlas::cblas_gemv ( const enum CBLAS_ORDER  Order,
const enum CBLAS_TRANSPOSE  TransA,
const int  M,
const int  N,
const eT  alpha,
const eT *  A,
const int  lda,
const eT *  X,
const int  incX,
const eT  beta,
eT *  Y,
const int  incY 
) [inline]

Definition at line 125 of file atlas_proto.hpp.

References tmp_real().

00134     {
00135     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00136     
00137     if(is_float<eT>::value == true)
00138       {
00139       typedef float T;
00140       cblas_sgemv(Order, TransA, M, N, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)X, incX, (const T)tmp_real(beta), (T*)Y, incY);
00141       }
00142     else
00143     if(is_double<eT>::value == true)
00144       {
00145       typedef double T;
00146       cblas_dgemv(Order, TransA, M, N, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)X, incX, (const T)tmp_real(beta), (T*)Y, incY);
00147       }
00148     else
00149     if(is_supported_complex_float<eT>::value == true)
00150       {
00151       typedef std::complex<float> T;
00152       cblas_cgemv(Order, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
00153       }
00154     else
00155     if(is_supported_complex_double<eT>::value == true)
00156       {
00157       typedef std::complex<double> T;
00158       cblas_zgemv(Order, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
00159       }
00160     }

template<typename eT >
void atlas::cblas_gemm ( const enum CBLAS_ORDER  Order,
const enum CBLAS_TRANSPOSE  TransA,
const enum CBLAS_TRANSPOSE  TransB,
const int  M,
const int  N,
const int  K,
const eT  alpha,
const eT *  A,
const int  lda,
const eT *  B,
const int  ldb,
const eT  beta,
eT *  C,
const int  ldc 
) [inline]

Definition at line 168 of file atlas_proto.hpp.

References tmp_real().

00175     {
00176     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00177     
00178     if(is_float<eT>::value == true)
00179       {
00180       typedef float T;
00181       cblas_sgemm(Order, TransA, TransB, M, N, K, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)B, ldb, (const T)tmp_real(beta), (T*)C, ldc);
00182       }
00183     else
00184     if(is_double<eT>::value == true)
00185       {
00186       typedef double T;
00187       cblas_dgemm(Order, TransA, TransB, M, N, K, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)B, ldb, (const T)tmp_real(beta), (T*)C, ldc);
00188       }
00189     else
00190     if(is_supported_complex_float<eT>::value == true)
00191       {
00192       typedef std::complex<float> T;
00193       cblas_cgemm(Order, TransA, TransB, M, N, K, (const T*)&alpha, (const T*)A, lda, (const T*)B, ldb, (const T*)&beta, (T*)C, ldc);
00194       }
00195     else
00196     if(is_supported_complex_double<eT>::value == true)
00197       {
00198       typedef std::complex<double> T;
00199       cblas_zgemm(Order, TransA, TransB, M, N, K, (const T*)&alpha, (const T*)A, lda, (const T*)B, ldb, (const T*)&beta, (T*)C, ldc);
00200       }
00201     }

template<typename eT >
int atlas::clapack_getrf ( const enum CBLAS_ORDER  Order,
const int  M,
const int  N,
eT *  A,
const int  lda,
int *  ipiv 
) [inline]

Definition at line 209 of file atlas_proto.hpp.

Referenced by auxlib::det(), auxlib::inv_inplace(), auxlib::inv_noalias(), auxlib::log_det(), and auxlib::lu().

00213     {
00214     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00215     
00216     if(is_float<eT>::value == true)
00217       {
00218       typedef float T;
00219       return clapack_sgetrf(Order, M, N, (T*)A, lda, ipiv);
00220       }
00221     else
00222     if(is_double<eT>::value == true)
00223       {
00224       typedef double T;
00225       return clapack_dgetrf(Order, M, N, (T*)A, lda, ipiv);
00226       }
00227     else
00228     if(is_supported_complex_float<eT>::value == true)
00229       {
00230       typedef std::complex<float> T;
00231       return clapack_cgetrf(Order, M, N, (T*)A, lda, ipiv);
00232       }
00233     else
00234     if(is_supported_complex_double<eT>::value == true)
00235       {
00236       typedef std::complex<double> T;
00237       return clapack_zgetrf(Order, M, N, (T*)A, lda, ipiv);
00238       }
00239     else
00240       {
00241       return -1;
00242       }
00243     }

template<typename eT >
int atlas::clapack_getri ( const enum CBLAS_ORDER  Order,
const int  N,
eT *  A,
const int  lda,
const int *  ipiv 
) [inline]

Definition at line 251 of file atlas_proto.hpp.

Referenced by auxlib::inv_inplace(), and auxlib::inv_noalias().

00255     {
00256     arma_type_check<is_supported_blas_type<eT>::value == false>::apply();
00257     
00258     if(is_float<eT>::value == true)
00259       {
00260       typedef float T;
00261       return clapack_sgetri(Order, N, (T*)A, lda, ipiv);
00262       }
00263     else
00264     if(is_double<eT>::value == true)
00265       {
00266       typedef double T;
00267       return clapack_dgetri(Order, N, (T*)A, lda, ipiv);
00268       }
00269     else
00270     if(is_supported_complex_float<eT>::value == true)
00271       {
00272       typedef std::complex<float> T;
00273       return clapack_cgetri(Order, N, (T*)A, lda, ipiv);
00274       }
00275     else
00276     if(is_supported_complex_double<eT>::value == true)
00277       {
00278       typedef std::complex<double> T;
00279       return clapack_zgetri(Order, N, (T*)A, lda, ipiv);
00280       }
00281     else
00282       {
00283       return -1;
00284       }
00285     }