comparison armadillo-2.4.4/include/armadillo_bits/atlas_wrapper.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2011 Conrad Sanderson
+// 
+// This file is part of the Armadillo C++ library.
+// It is provided without any warranty of fitness
+// for any purpose. You can redistribute this file
+// and/or modify it under the terms of the GNU
+// Lesser General Public License (LGPL) as published
+// by the Free Software Foundation, either version 3
+// of the License or (at your option) any later version.
+// (see http://www.opensource.org/licenses for more info)
+
+
+#ifdef ARMA_USE_ATLAS
+
+
+//! \namespace atlas namespace for ATLAS functions (imported from the global namespace)
+namespace atlas
+  {
+  
+  template<typename eT>
+  inline static const eT& tmp_real(const eT& X)              { return X; }
+  
+  template<typename T>
+  inline static const T&  tmp_real(const std::complex<T>& X) { return X.real(); }
+  
+  
+  
+  template<typename eT>
+  arma_inline
+  eT
+  cblas_dot(const int N, const eT* X, const eT* Y)
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      return eT( arma_atlas(cblas_sdot)(N, (const T*)X, 1, (const T*)Y, 1) );
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      return eT( arma_atlas(cblas_ddot)(N, (const T*)X, 1, (const T*)Y, 1) );
+      }
+    else
+      {
+      return eT(0);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  arma_inline
+  eT
+  cx_cblas_dot(const int N, const eT* X, const eT* Y)
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef typename std::complex<float> T;
+      
+      T out;    
+      arma_atlas(cblas_cdotu_sub)(N, (const T*)X, 1, (const T*)Y, 1, &out);
+      
+      return eT(out);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef typename std::complex<double> T;
+      
+      T out;
+      arma_atlas(cblas_zdotu_sub)(N, (const T*)X, 1, (const T*)Y, 1, &out);
+      
+      return eT(out);
+      }
+    else
+      {
+      return eT(0);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  inline
+  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
+    )
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      arma_atlas(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);
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      arma_atlas(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);
+      }
+    else
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef std::complex<float> T;
+      arma_atlas(cblas_cgemv)(Order, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef std::complex<double> T;
+      arma_atlas(cblas_zgemv)(Order, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  inline
+  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
+    )
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      arma_atlas(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);
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      arma_atlas(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);
+      }
+    else
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef std::complex<float> T;
+      arma_atlas(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);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef std::complex<double> T;
+      arma_atlas(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);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  inline
+  int
+  clapack_getrf
+    (
+    const enum CBLAS_ORDER Order, const int M, const int N,
+    eT *A, const int lda, int *ipiv
+    )
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      return arma_atlas(clapack_sgetrf)(Order, M, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      return arma_atlas(clapack_dgetrf)(Order, M, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef std::complex<float> T;
+      return arma_atlas(clapack_cgetrf)(Order, M, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef std::complex<double> T;
+      return arma_atlas(clapack_zgetrf)(Order, M, N, (T*)A, lda, ipiv);
+      }
+    else
+      {
+      return -1;
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  inline
+  int
+  clapack_getri
+    (
+    const enum CBLAS_ORDER Order, const int N, eT *A,
+    const int lda, const int *ipiv
+    )
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      return arma_atlas(clapack_sgetri)(Order, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      return arma_atlas(clapack_dgetri)(Order, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef std::complex<float> T;
+      return arma_atlas(clapack_cgetri)(Order, N, (T*)A, lda, ipiv);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef std::complex<double> T;
+      return arma_atlas(clapack_zgetri)(Order, N, (T*)A, lda, ipiv);
+      }
+    else
+      {
+      return -1;
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  inline
+  int
+  clapack_gesv
+    (
+    const enum CBLAS_ORDER Order,
+    const int N, const int NRHS,
+    eT* A, const int lda, int* ipiv,
+    eT* B, const int ldb
+    )
+    {
+    arma_type_check((is_supported_blas_type<eT>::value == false));
+    
+    if(is_float<eT>::value == true)
+      {
+      typedef float T;
+      return arma_atlas(clapack_sgesv)(Order, N, NRHS, (T*)A, lda, ipiv, (T*)B, ldb);
+      }
+    else
+    if(is_double<eT>::value == true)
+      {
+      typedef double T;
+      return arma_atlas(clapack_dgesv)(Order, N, NRHS, (T*)A, lda, ipiv, (T*)B, ldb);
+      }
+    else
+    if(is_supported_complex_float<eT>::value == true)
+      {
+      typedef std::complex<float> T;
+      return arma_atlas(clapack_cgesv)(Order, N, NRHS, (T*)A, lda, ipiv, (T*)B, ldb);
+      }
+    else
+    if(is_supported_complex_double<eT>::value == true)
+      {
+      typedef std::complex<double> T;
+      return arma_atlas(clapack_zgesv)(Order, N, NRHS, (T*)A, lda, ipiv, (T*)B, ldb);
+      }
+    else
+      {
+      return -1;
+      }
+    }
+
+
+
+  }
+
+#endif