611 lines
13 KiB
C++
611 lines
13 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup op_sum
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//! @{
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template<typename T1>
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inline
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void
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op_sum::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_sum>& in)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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const uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 1), "sum(): parameter 'dim' must be 0 or 1" );
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if((is_Mat<T1>::value) || (is_Mat<typename Proxy<T1>::stored_type>::value) || (arma_config::openmp && Proxy<T1>::use_mp))
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{
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const quasi_unwrap<T1> U(in.m);
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_mat_noalias(tmp, U.M, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_mat_noalias(out, U.M, dim);
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}
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}
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else
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{
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const Proxy<T1> P(in.m);
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if(P.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_proxy_noalias(tmp, P, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_proxy_noalias(out, P, dim);
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}
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}
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}
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template<typename T1>
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inline
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void
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op_sum::apply(Mat<typename T1::elem_type>& out, const Op< eOp<T1,eop_square>, op_sum >& in)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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typedef eOp<T1,eop_square> inner_expr_type;
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typedef typename inner_expr_type::proxy_type::stored_type inner_expr_P_stored_type;
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const uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 1), "sum(): parameter 'dim' must be 0 or 1" );
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if(is_Mat<inner_expr_P_stored_type>::value)
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{
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const quasi_unwrap<inner_expr_P_stored_type> U(in.m.P.Q);
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_mat_square_noalias(tmp, U.M, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_mat_square_noalias(out, U.M, dim);
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}
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}
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else
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if(arma_config::openmp && Proxy<inner_expr_type>::use_mp)
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{
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const quasi_unwrap<inner_expr_type> U(in.m); // force evaluation of compound inner expression
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_mat_noalias(tmp, U.M, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_mat_noalias(out, U.M, dim);
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}
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}
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else
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{
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const Proxy<inner_expr_type> P(in.m);
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if(P.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_proxy_noalias(tmp, P, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_proxy_noalias(out, P, dim);
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}
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}
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}
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template<typename T1>
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inline
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void
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op_sum::apply(Mat<typename T1::elem_type>& out, const Op< eOp<T1,eop_pow>, op_sum >& in)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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if(in.m.aux == eT(2))
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{
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typedef Op< eOp<T1,eop_square>, op_sum > modified_whole_expr_type;
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op_sum::apply(out, reinterpret_cast<const modified_whole_expr_type& >(in) );
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return;
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}
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if((in.m.aux == eT(0.5)) && is_non_integral<eT>::value)
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{
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typedef Op< eOp<T1,eop_sqrt>, op_sum > modified_whole_expr_type;
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op_sum::apply(out, reinterpret_cast<const modified_whole_expr_type& >(in) );
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return;
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}
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typedef eOp<T1,eop_pow> inner_expr_type;
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typedef typename inner_expr_type::proxy_type::stored_type inner_expr_P_stored_type;
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const uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 1), "sum(): parameter 'dim' must be 0 or 1" );
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if( (is_Mat<inner_expr_P_stored_type>::value) || (arma_config::openmp && Proxy<inner_expr_type>::use_mp) )
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{
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const quasi_unwrap<inner_expr_type> U(in.m); // force evaluation of eop_pow
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_mat_noalias(tmp, U.M, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_mat_noalias(out, U.M, dim);
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}
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}
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else
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{
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const Proxy<inner_expr_type> P(in.m);
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if(P.is_alias(out))
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{
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Mat<eT> tmp;
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op_sum::apply_proxy_noalias(tmp, P, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_proxy_noalias(out, P, dim);
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}
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}
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}
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template<typename eT>
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inline
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void
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op_sum::apply_mat_noalias(Mat<eT>& out, const Mat<eT>& X, const uword dim)
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{
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arma_debug_sigprint();
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const uword X_n_rows = X.n_rows;
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const uword X_n_cols = X.n_cols;
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const uword out_n_rows = (dim == 0) ? uword(1) : X_n_rows;
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const uword out_n_cols = (dim == 0) ? X_n_cols : uword(1);
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out.set_size(out_n_rows, out_n_cols);
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if(X.n_elem == 0) { out.zeros(); return; }
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const eT* X_colptr = X.memptr();
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eT* out_mem = out.memptr();
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if(dim == 0)
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{
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for(uword col=0; col < X_n_cols; ++col)
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{
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out_mem[col] = arrayops::accumulate( X_colptr, X_n_rows );
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X_colptr += X_n_rows;
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}
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}
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else
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{
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arrayops::copy(out_mem, X_colptr, X_n_rows);
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X_colptr += X_n_rows;
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for(uword col=1; col < X_n_cols; ++col)
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{
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arrayops::inplace_plus( out_mem, X_colptr, X_n_rows );
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X_colptr += X_n_rows;
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}
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}
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}
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template<typename eT>
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inline
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void
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op_sum::apply_mat_square_noalias(Mat<eT>& out, const Mat<eT>& X, const uword dim)
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{
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arma_debug_sigprint();
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const uword X_n_rows = X.n_rows;
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const uword X_n_cols = X.n_cols;
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const uword out_n_rows = (dim == 0) ? uword(1) : X_n_rows;
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const uword out_n_cols = (dim == 0) ? X_n_cols : uword(1);
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out.set_size(out_n_rows, out_n_cols);
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if(X.n_elem == 0) { out.zeros(); return; }
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const eT* X_colptr = X.memptr();
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eT* out_mem = out.memptr();
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if(dim == 0)
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{
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for(uword col=0; col < X_n_cols; ++col)
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{
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out_mem[col] = op_dot::direct_dot(X_n_rows, X_colptr, X_colptr);
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X_colptr += X_n_rows;
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}
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}
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else
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{
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for(uword row=0; row < X_n_rows; ++row) { const eT tmp = X_colptr[row]; out_mem[row] = tmp*tmp; }
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X_colptr += X_n_rows;
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for(uword col=1; col < X_n_cols; ++col)
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{
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for(uword row=0; row < X_n_rows; ++row) { const eT tmp = X_colptr[row]; out_mem[row] += tmp*tmp; }
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X_colptr += X_n_rows;
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}
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}
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}
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template<typename T1>
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inline
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void
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op_sum::apply_proxy_noalias(Mat<typename T1::elem_type>& out, const Proxy<T1>& P, const uword dim)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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const uword P_n_rows = P.get_n_rows();
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const uword P_n_cols = P.get_n_cols();
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const uword out_n_rows = (dim == 0) ? uword(1) : P_n_rows;
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const uword out_n_cols = (dim == 0) ? P_n_cols : uword(1);
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out.set_size(out_n_rows, out_n_cols);
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if(P.get_n_elem() == 0) { out.zeros(); return; }
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eT* out_mem = out.memptr();
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if(Proxy<T1>::use_at == false)
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{
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if(dim == 0)
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{
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uword count = 0;
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for(uword col=0; col < P_n_cols; ++col)
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{
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eT val1 = eT(0);
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eT val2 = eT(0);
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uword j;
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for(j=1; j < P_n_rows; j+=2)
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{
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val1 += P[count]; ++count;
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val2 += P[count]; ++count;
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}
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if((j-1) < P_n_rows)
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{
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val1 += P[count]; ++count;
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}
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out_mem[col] = (val1 + val2);
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}
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}
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else
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{
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uword count = 0;
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for(uword row=0; row < P_n_rows; ++row)
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{
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out_mem[row] = P[count]; ++count;
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}
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for(uword col=1; col < P_n_cols; ++col)
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for(uword row=0; row < P_n_rows; ++row)
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{
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out_mem[row] += P[count]; ++count;
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}
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}
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}
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else
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{
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if(dim == 0)
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{
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for(uword col=0; col < P_n_cols; ++col)
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{
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eT val1 = eT(0);
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eT val2 = eT(0);
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uword i,j;
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for(i=0, j=1; j < P_n_rows; i+=2, j+=2)
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{
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val1 += P.at(i,col);
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val2 += P.at(j,col);
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}
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if(i < P_n_rows)
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{
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val1 += P.at(i,col);
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}
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out_mem[col] = (val1 + val2);
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}
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}
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else
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{
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for(uword row=0; row < P_n_rows; ++row)
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{
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out_mem[row] = P.at(row,0);
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}
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for(uword col=1; col < P_n_cols; ++col)
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for(uword row=0; row < P_n_rows; ++row)
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{
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out_mem[row] += P.at(row,col);
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}
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}
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}
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}
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//
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// cubes
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template<typename T1>
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inline
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void
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op_sum::apply(Cube<typename T1::elem_type>& out, const OpCube<T1,op_sum>& in)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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const uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 2), "sum(): parameter 'dim' must be 0 or 1 or 2" );
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if((is_Cube<T1>::value) || (is_Cube<typename ProxyCube<T1>::stored_type>::value) || (arma_config::openmp && ProxyCube<T1>::use_mp))
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{
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const unwrap_cube<T1> U(in.m);
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if(U.is_alias(out))
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{
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Cube<eT> tmp;
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op_sum::apply_cube_noalias(tmp, U.M, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_cube_noalias(out, U.M, dim);
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}
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}
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else
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{
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const ProxyCube<T1> P(in.m);
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if(P.is_alias(out))
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{
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Cube<eT> tmp;
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op_sum::apply_proxy_noalias(tmp, P, dim);
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out.steal_mem(tmp);
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}
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else
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{
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op_sum::apply_proxy_noalias(out, P, dim);
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}
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}
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}
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template<typename eT>
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inline
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void
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op_sum::apply_cube_noalias(Cube<eT>& out, const Cube<eT>& X, const uword dim)
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{
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arma_debug_sigprint();
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const uword X_n_rows = X.n_rows;
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const uword X_n_cols = X.n_cols;
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const uword X_n_slices = X.n_slices;
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if(dim == 0)
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{
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out.set_size(1, X_n_cols, X_n_slices);
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for(uword slice=0; slice < X_n_slices; ++slice)
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{
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eT* out_mem = out.slice_memptr(slice);
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for(uword col=0; col < X_n_cols; ++col)
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{
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out_mem[col] = arrayops::accumulate( X.slice_colptr(slice,col), X_n_rows );
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}
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}
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}
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else
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if(dim == 1)
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{
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out.zeros(X_n_rows, 1, X_n_slices);
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for(uword slice=0; slice < X_n_slices; ++slice)
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{
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eT* out_mem = out.slice_memptr(slice);
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for(uword col=0; col < X_n_cols; ++col)
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{
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arrayops::inplace_plus( out_mem, X.slice_colptr(slice,col), X_n_rows );
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}
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}
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}
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else
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if(dim == 2)
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{
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out.zeros(X_n_rows, X_n_cols, 1);
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eT* out_mem = out.memptr();
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for(uword slice=0; slice < X_n_slices; ++slice)
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{
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arrayops::inplace_plus(out_mem, X.slice_memptr(slice), X.n_elem_slice );
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}
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}
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}
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template<typename T1>
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inline
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void
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op_sum::apply_proxy_noalias(Cube<typename T1::elem_type>& out, const ProxyCube<T1>& P, const uword dim)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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const uword P_n_rows = P.get_n_rows();
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const uword P_n_cols = P.get_n_cols();
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const uword P_n_slices = P.get_n_slices();
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if(dim == 0)
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{
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out.set_size(1, P_n_cols, P_n_slices);
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for(uword slice=0; slice < P_n_slices; ++slice)
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{
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eT* out_mem = out.slice_memptr(slice);
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for(uword col=0; col < P_n_cols; ++col)
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{
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eT val1 = eT(0);
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eT val2 = eT(0);
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uword i,j;
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for(i=0, j=1; j < P_n_rows; i+=2, j+=2)
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|
{
|
|
val1 += P.at(i,col,slice);
|
|
val2 += P.at(j,col,slice);
|
|
}
|
|
|
|
if(i < P_n_rows)
|
|
{
|
|
val1 += P.at(i,col,slice);
|
|
}
|
|
|
|
out_mem[col] = (val1 + val2);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 1)
|
|
{
|
|
out.zeros(P_n_rows, 1, P_n_slices);
|
|
|
|
for(uword slice=0; slice < P_n_slices; ++slice)
|
|
{
|
|
eT* out_mem = out.slice_memptr(slice);
|
|
|
|
for(uword col=0; col < P_n_cols; ++col)
|
|
for(uword row=0; row < P_n_rows; ++row)
|
|
{
|
|
out_mem[row] += P.at(row,col,slice);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 2)
|
|
{
|
|
out.zeros(P_n_rows, P_n_cols, 1);
|
|
|
|
for(uword slice=0; slice < P_n_slices; ++slice)
|
|
{
|
|
for(uword col=0; col < P_n_cols; ++col)
|
|
{
|
|
eT* out_mem = out.slice_colptr(0,col);
|
|
|
|
for(uword row=0; row < P_n_rows; ++row)
|
|
{
|
|
out_mem[row] += P.at(row,col,slice);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//! @}
|