Tpetra parallel linear algebra  Version of the Day
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
Tpetra_leftAndOrRightScaleCrsMatrix_decl.hpp
Go to the documentation of this file.
1 // @HEADER
2 // ***********************************************************************
3 //
4 // Tpetra: Templated Linear Algebra Services Package
5 // Copyright (2008) Sandia Corporation
6 //
7 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
8 // the U.S. Government retains certain rights in this software.
9 //
10 // Redistribution and use in source and binary forms, with or without
11 // modification, are permitted provided that the following conditions are
12 // met:
13 //
14 // 1. Redistributions of source code must retain the above copyright
15 // notice, this list of conditions and the following disclaimer.
16 //
17 // 2. Redistributions in binary form must reproduce the above copyright
18 // notice, this list of conditions and the following disclaimer in the
19 // documentation and/or other materials provided with the distribution.
20 //
21 // 3. Neither the name of the Corporation nor the names of the
22 // contributors may be used to endorse or promote products derived from
23 // this software without specific prior written permission.
24 //
25 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 //
37 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
38 //
39 // ************************************************************************
40 // @HEADER
41 
42 #ifndef TPETRA_LEFTANDORRIGHTSCALECRSMATRIX_DECL_HPP
43 #define TPETRA_LEFTANDORRIGHTSCALECRSMATRIX_DECL_HPP
44 
47 
48 #include "TpetraCore_config.h"
49 #include "Kokkos_ArithTraits.hpp"
50 #include "Kokkos_Core.hpp"
51 #include "Tpetra_CrsMatrix_fwd.hpp"
52 #include "Tpetra_Vector_fwd.hpp"
53 
54 namespace Tpetra {
55 
60 enum EScaling {
61  SCALING_MULTIPLY,
62  SCALING_DIVIDE
63 };
64 
91 template<class SC, class LO, class GO, class NT>
92 void
94  const Kokkos::View<
95  const typename Kokkos::ArithTraits<SC>::mag_type*,
96  typename NT::device_type>& rowScalingFactors,
97  const Kokkos::View<
98  const typename Kokkos::ArithTraits<SC>::mag_type*,
99  typename NT::device_type>& colScalingFactors,
100  const bool leftScale,
101  const bool rightScale,
102  const bool assumeSymmetric,
103  const EScaling scaling);
104 
132 template<class SC, class LO, class GO, class NT>
133 void
135  const Tpetra::Vector<typename Kokkos::ArithTraits<SC>::mag_type,
136  LO, GO, NT>& rowScalingFactors,
137  const Tpetra::Vector<typename Kokkos::ArithTraits<SC>::mag_type,
138  LO, GO, NT>& colScalingFactors,
139  const bool leftScale,
140  const bool rightScale,
141  const bool assumeSymmetric,
142  const EScaling scaling);
143 
144 } // namespace Tpetra
145 
146 #endif // TPETRA_LEFTANDORRIGHTSCALECRSMATRIX_DECL_HPP
Sparse matrix that presents a row-oriented interface that lets users read or modify entries...
void leftAndOrRightScaleCrsMatrix(Tpetra::CrsMatrix< SC, LO, GO, NT > &A, const Kokkos::View< const typename Kokkos::ArithTraits< SC >::mag_type *, typename NT::device_type > &rowScalingFactors, const Kokkos::View< const typename Kokkos::ArithTraits< SC >::mag_type *, typename NT::device_type > &colScalingFactors, const bool leftScale, const bool rightScale, const bool assumeSymmetric, const EScaling scaling)
Left-scale and/or right-scale (in that order) the entries of the input Tpetra::CrsMatrix A...
EScaling
Whether &quot;scaling&quot; a matrix means multiplying or dividing its entries.
Forward declaration of Tpetra::CrsMatrix.
Forward declaration of Tpetra::Vector.
A distributed dense vector.