1 /*
2 * Copyright (c) 2011, Michael Lehn
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 * 3) Neither the name of the FLENS development group nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /* Based on
34 *
35 SUBROUTINE DTREVC( SIDE, HOWMNY, SELECT, N, T, LDT, VL, LDVL, VR,
36 $ LDVR, MM, M, WORK, INFO )
37 *
38 * -- LAPACK routine (version 3.3.1) --
39 * -- LAPACK is a software package provided by Univ. of Tennessee, --
40 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
41 * -- April 2011 --
42 */
43
44 #ifndef FLENS_LAPACK_EIG_TREVC_H
45 #define FLENS_LAPACK_EIG_TREVC_H 1
46
47 #include <flens/matrixtypes/matrixtypes.h>
48 #include <flens/vectortypes/vectortypes.h>
49
50 namespace flens { namespace lapack {
51
52 namespace TREVC {
53
54 enum Job {
55 All, // 'A': compute all right and/or left eigenvectors;
56 Backtransform, // 'B': compute all right and/or left eigenvectors,
57 // backtransformed by the matrices in VR
58 // and/or VL;
59 Selected // 'S': compute selected right and/or left
60 // eigenvectors, as indicated by the logical
61 // array SELECT.
62 };
63
64 }
65
66 //== trevc =====================================================================
67 template <typename VSELECT, typename MTR, typename MVL, typename MVR,
68 typename IndexType, typename VWORK>
69 void
70 trevc(bool computeVL,
71 bool computeVR,
72 TREVC::Job howMany,
73 DenseVector<VSELECT> &select,
74 const GeMatrix<MTR> &Tr,
75 GeMatrix<MVL> &VL,
76 GeMatrix<MVR> &VR,
77 IndexType mm,
78 IndexType &m,
79 DenseVector<VWORK> &work);
80
81 //-- forwarding ----------------------------------------------------------------
82 template <typename VSELECT, typename MTR, typename MVL, typename MVR,
83 typename IndexType, typename VWORK>
84 void
85 trevc(bool computeVL,
86 bool computeVR,
87 TREVC::Job howMany,
88 const VSELECT &select,
89 const MTR &Tr,
90 MVL &&VL,
91 MVR &&VR,
92 IndexType mm,
93 IndexType &&m,
94 VWORK &&work);
95
96 } } // namespace lapack, flens
97
98 #endif // FLENS_LAPACK_EIG_TREVC_H
2 * Copyright (c) 2011, Michael Lehn
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 * 3) Neither the name of the FLENS development group nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /* Based on
34 *
35 SUBROUTINE DTREVC( SIDE, HOWMNY, SELECT, N, T, LDT, VL, LDVL, VR,
36 $ LDVR, MM, M, WORK, INFO )
37 *
38 * -- LAPACK routine (version 3.3.1) --
39 * -- LAPACK is a software package provided by Univ. of Tennessee, --
40 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
41 * -- April 2011 --
42 */
43
44 #ifndef FLENS_LAPACK_EIG_TREVC_H
45 #define FLENS_LAPACK_EIG_TREVC_H 1
46
47 #include <flens/matrixtypes/matrixtypes.h>
48 #include <flens/vectortypes/vectortypes.h>
49
50 namespace flens { namespace lapack {
51
52 namespace TREVC {
53
54 enum Job {
55 All, // 'A': compute all right and/or left eigenvectors;
56 Backtransform, // 'B': compute all right and/or left eigenvectors,
57 // backtransformed by the matrices in VR
58 // and/or VL;
59 Selected // 'S': compute selected right and/or left
60 // eigenvectors, as indicated by the logical
61 // array SELECT.
62 };
63
64 }
65
66 //== trevc =====================================================================
67 template <typename VSELECT, typename MTR, typename MVL, typename MVR,
68 typename IndexType, typename VWORK>
69 void
70 trevc(bool computeVL,
71 bool computeVR,
72 TREVC::Job howMany,
73 DenseVector<VSELECT> &select,
74 const GeMatrix<MTR> &Tr,
75 GeMatrix<MVL> &VL,
76 GeMatrix<MVR> &VR,
77 IndexType mm,
78 IndexType &m,
79 DenseVector<VWORK> &work);
80
81 //-- forwarding ----------------------------------------------------------------
82 template <typename VSELECT, typename MTR, typename MVL, typename MVR,
83 typename IndexType, typename VWORK>
84 void
85 trevc(bool computeVL,
86 bool computeVR,
87 TREVC::Job howMany,
88 const VSELECT &select,
89 const MTR &Tr,
90 MVL &&VL,
91 MVR &&VR,
92 IndexType mm,
93 IndexType &&m,
94 VWORK &&work);
95
96 } } // namespace lapack, flens
97
98 #endif // FLENS_LAPACK_EIG_TREVC_H