Move into version control

1 files changed, 419 insertions, 0 deletions

diff --git a/src/armadillo/include/armadillo_bits/op_htrans_meat.hpp b/src/armadillo/include/armadillo_bits/op_htrans_meat.hpp
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@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: Apache-2.0
+// 
+// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
+// Copyright 2008-2016 National ICT Australia (NICTA)
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ------------------------------------------------------------------------
+
+
+//! \addtogroup op_htrans
+//! @{
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat_noalias(Mat<eT>& out, const Mat<eT>& A, const typename arma_not_cx<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_strans::apply_mat_noalias(out, A);
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat_noalias(Mat<eT>& out, const Mat<eT>& A, const typename arma_cx_only<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  const uword A_n_rows = A.n_rows;
+  const uword A_n_cols = A.n_cols;
+  
+  out.set_size(A_n_cols, A_n_rows);
+  
+  if( (A_n_cols == 1) || (A_n_rows == 1) )
+    {
+    const uword n_elem = A.n_elem;
+    
+    const eT* A_mem   = A.memptr();
+          eT* out_mem = out.memptr();
+    
+    for(uword i=0; i < n_elem; ++i)
+      {
+      out_mem[i] = std::conj(A_mem[i]);
+      }
+    }
+  else
+  if( (A_n_rows >= 512) && (A_n_cols >= 512) )
+    {
+    op_htrans::apply_mat_noalias_large(out, A);
+    }
+  else
+    {
+    eT* outptr = out.memptr();
+    
+    for(uword k=0; k < A_n_rows; ++k)
+      {
+      const eT* Aptr = &(A.at(k,0));
+      
+      for(uword j=0; j < A_n_cols; ++j)
+        {
+        (*outptr) = std::conj(*Aptr);
+        
+        Aptr += A_n_rows;
+        outptr++;
+        }
+      }
+    }
+  }
+
+
+
+template<typename T>
+inline
+void
+op_htrans::block_worker(std::complex<T>* Y, const std::complex<T>* X, const uword X_n_rows, const uword Y_n_rows, const uword n_rows, const uword n_cols)
+  {
+  for(uword row = 0; row < n_rows; ++row)
+    {
+    const uword Y_offset = row * Y_n_rows;
+    
+    for(uword col = 0; col < n_cols; ++col)
+      {
+      const uword X_offset = col * X_n_rows;
+      
+      Y[col + Y_offset] = std::conj(X[row + X_offset]);
+      }
+    }
+  }
+
+
+
+template<typename T>
+inline
+void
+op_htrans::apply_mat_noalias_large(Mat< std::complex<T> >& out, const Mat< std::complex<T> >& A)
+  {
+  arma_extra_debug_sigprint();
+  
+  const uword n_rows = A.n_rows;
+  const uword n_cols = A.n_cols;
+  
+  const uword block_size = 64;
+  
+  const uword n_rows_base = block_size * (n_rows / block_size);
+  const uword n_cols_base = block_size * (n_cols / block_size);
+  
+  const uword n_rows_extra = n_rows - n_rows_base;
+  const uword n_cols_extra = n_cols - n_cols_base;
+  
+  const std::complex<T>* X =   A.memptr();
+        std::complex<T>* Y = out.memptr();
+  
+  for(uword row = 0; row < n_rows_base; row += block_size)
+    {
+    const uword Y_offset = row * n_cols;
+    
+    for(uword col = 0; col < n_cols_base; col += block_size)
+      {
+      const uword X_offset = col * n_rows;
+      
+      op_htrans::block_worker(&Y[col + Y_offset], &X[row + X_offset], n_rows, n_cols, block_size, block_size);
+      }
+    
+    const uword X_offset = n_cols_base * n_rows;
+    
+    op_htrans::block_worker(&Y[n_cols_base + Y_offset], &X[row + X_offset], n_rows, n_cols, block_size, n_cols_extra);
+    }
+
+  if(n_rows_extra == 0)  { return; }
+  
+  const uword Y_offset = n_rows_base * n_cols;
+  
+  for(uword col = 0; col < n_cols_base; col += block_size)
+    {
+    const uword X_offset = col * n_rows;
+    
+    op_htrans::block_worker(&Y[col + Y_offset], &X[n_rows_base + X_offset], n_rows, n_cols, n_rows_extra, block_size);
+    }
+  
+  const uword X_offset = n_cols_base * n_rows;
+  
+  op_htrans::block_worker(&Y[n_cols_base + Y_offset], &X[n_rows_base + X_offset], n_rows, n_cols, n_rows_extra, n_cols_extra);
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat_inplace(Mat<eT>& out, const typename arma_not_cx<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_strans::apply_mat_inplace(out);
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat_inplace(Mat<eT>& out, const typename arma_cx_only<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  const uword n_rows = out.n_rows;
+  const uword n_cols = out.n_cols;
+    
+  if(n_rows == n_cols)
+    {
+    arma_extra_debug_print("doing in-place hermitian transpose of a square matrix");
+    
+    for(uword col=0; col < n_cols; ++col)
+      {
+      eT* coldata = out.colptr(col);
+      
+      out.at(col,col) = std::conj( out.at(col,col) );
+      
+      for(uword row=(col+1); row < n_rows; ++row)
+        {
+        const eT val1 = std::conj(coldata[row]);
+        const eT val2 = std::conj(out.at(col,row));
+        
+        out.at(col,row) = val1;
+        coldata[row]    = val2;
+        }
+      }
+    }
+  else
+    {
+    Mat<eT> tmp;
+    
+    op_htrans::apply_mat_noalias(tmp, out);
+    
+    out.steal_mem(tmp);
+    }
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat(Mat<eT>& out, const Mat<eT>& A, const typename arma_not_cx<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_strans::apply_mat(out, A);
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_htrans::apply_mat(Mat<eT>& out, const Mat<eT>& A, const typename arma_cx_only<eT>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  if(&out != &A)
+    {
+    op_htrans::apply_mat_noalias(out, A);
+    }
+  else
+    {
+    op_htrans::apply_mat_inplace(out);
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_htrans::apply_proxy(Mat<typename T1::elem_type>& out, const Proxy<T1>& P)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const uword n_rows = P.get_n_rows();
+  const uword n_cols = P.get_n_cols();
+  
+  if( (resolves_to_vector<T1>::yes) && (Proxy<T1>::use_at == false) )
+    {
+    out.set_size(n_cols, n_rows);
+    
+    eT* out_mem = out.memptr();
+    
+    const uword n_elem = P.get_n_elem();
+    
+    typename Proxy<T1>::ea_type Pea = P.get_ea();
+    
+    for(uword i=0; i < n_elem; ++i)
+      {
+      out_mem[i] = std::conj(Pea[i]);
+      }
+    }
+  else
+    {
+    out.set_size(n_cols, n_rows);
+    
+    eT* outptr = out.memptr();
+    
+    for(uword k=0; k < n_rows; ++k)
+      {
+      for(uword j=0; j < n_cols; ++j)
+        {
+        (*outptr) = std::conj(P.at(k,j));
+        
+        outptr++;
+        }
+      }
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_htrans::apply_direct(Mat<typename T1::elem_type>& out, const T1& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  // allow detection of in-place transpose
+  if(is_Mat<T1>::value || (arma_config::openmp && Proxy<T1>::use_mp))
+    {
+    const unwrap<T1> U(X);
+    
+    op_htrans::apply_mat(out, U.M);
+    }
+  else
+    {
+    const Proxy<T1> P(X);
+    
+    const bool is_alias = P.is_alias(out);
+    
+    if(is_Mat<typename Proxy<T1>::stored_type>::value)
+      {
+      const quasi_unwrap<typename Proxy<T1>::stored_type> U(P.Q);
+      
+      if(is_alias)
+        {
+        Mat<eT> tmp;
+        
+        op_htrans::apply_mat_noalias(tmp, U.M);
+        
+        out.steal_mem(tmp);
+        }
+      else
+        {
+        op_htrans::apply_mat_noalias(out, U.M);
+        }
+      }
+    else
+      {
+      if(is_alias)
+        {
+        Mat<eT> tmp;
+        
+        op_htrans::apply_proxy(tmp, P);
+        
+        out.steal_mem(tmp);
+        }
+      else
+        {
+        op_htrans::apply_proxy(out, P);
+        }
+      }
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_htrans::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_htrans>& in, const typename arma_not_cx<typename T1::elem_type>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_strans::apply_direct(out, in.m);
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_htrans::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_htrans>& in, const typename arma_cx_only<typename T1::elem_type>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_htrans::apply_direct(out, in.m);
+  }
+
+
+
+//
+// op_htrans2
+
+
+
+template<typename T1>
+inline
+void
+op_htrans2::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_htrans2>& in, const typename arma_not_cx<typename T1::elem_type>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_strans::apply_direct(out, in.m);
+  
+  arrayops::inplace_mul(out.memptr(), in.aux, out.n_elem);
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_htrans2::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_htrans2>& in, const typename arma_cx_only<typename T1::elem_type>::result* junk)
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  op_htrans::apply_direct(out, in.m);
+  
+  arrayops::inplace_mul(out.memptr(), in.aux, out.n_elem);
+  }
+
+
+
+//! @}