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authorNao Pross <np@0hm.ch>2024-02-12 14:52:43 +0100
committerNao Pross <np@0hm.ch>2024-02-12 14:52:43 +0100
commiteda5bc26f44ee9a6f83dcf8c91f17296d7fc509d (patch)
treebc2efa38ff4e350f9a111ac87065cd7ae9a911c7 /src/armadillo/include/armadillo_bits/newarp_SymEigsShiftSolver_meat.hpp
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Move into version control
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+// 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.
+// ------------------------------------------------------------------------
+
+
+namespace newarp
+{
+
+
+template<typename eT, int SelectionRule, typename OpType>
+inline
+void
+SymEigsShiftSolver<eT, SelectionRule, OpType>::sort_ritzpair()
+ {
+ arma_extra_debug_sigprint();
+
+ // First transform back the Ritz values, and then sort
+ for(uword i = 0; i < this->nev; i++)
+ {
+ this->ritz_val(i) = eT(1.0) / this->ritz_val(i) + sigma;
+ }
+ SymEigsSolver<eT, SelectionRule, OpType>::sort_ritzpair();
+ }
+
+
+
+template<typename eT, int SelectionRule, typename OpType>
+inline
+SymEigsShiftSolver<eT, SelectionRule, OpType>::SymEigsShiftSolver(const OpType& op_, uword nev_, uword ncv_, const eT sigma_)
+ : SymEigsSolver<eT, SelectionRule, OpType>::SymEigsSolver(op_, nev_, ncv_)
+ , sigma(sigma_)
+ {
+ arma_extra_debug_sigprint();
+ }
+
+
+} // namespace newarp