Mercurial > octave
annotate libinterp/dldfcn/dmperm.cc @ 21200:fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
* builtins.h, Cell.cc, __contourc__.cc, __dispatch__.cc, __dsearchn__.cc,
__ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc,
balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc,
c-file-ptr-stream.cc, c-file-ptr-stream.h, cellfun.cc, colloc.cc,
comment-list.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc,
defaults.cc, defaults.in.h, defun-dld.h, defun.cc, defun.h, det.cc, dirfns.cc,
display.cc, dlmread.cc, dot.cc, dynamic-ld.cc, eig.cc, ellipj.cc, error.cc,
errwarn.cc, event-queue.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc,
find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc,
givens.cc, gl-render.cc, gl2ps-print.cc, graphics.cc, graphics.in.h, gripes.cc,
hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, jit-ir.cc,
jit-typeinfo.cc, jit-util.cc, jit-util.h, kron.cc, load-path.cc, load-save.cc,
lookup.cc, ls-ascii-helper.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc,
ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, ls-oct-text.h, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, luinc.cc, mappers.cc, matrix_type.cc, max.cc,
mex.h, mexproto.h, mgorth.cc, nproc.cc, oct-errno.in.cc, oct-fstrm.cc,
oct-hdf5-types.cc, oct-hdf5.h, oct-hist.cc, oct-iostrm.cc, oct-lvalue.cc,
oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc, oct-stream.cc, oct-strstrm.cc,
octave-link.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, procstream.cc,
profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc,
regexp.cc, schur.cc, sighandlers.cc, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc,
spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc,
sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, sysdep.h, time.cc, toplev.cc,
tril.cc, tsearch.cc, txt-eng-ft.cc, txt-eng.cc, typecast.cc, urlwrite.cc,
utils.cc, variables.cc, xdiv.cc, xnorm.cc, xpow.cc, zfstream.cc,
__delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc,
__init_fltk__.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc,
__voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc,
colamd.cc, convhulln.cc, dmperm.cc, fftw.cc, oct-qhull.h, qr.cc, symbfact.cc,
symrcm.cc, oct-conf.in.cc, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-scalar.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-mat.cc,
ov-bool-sparse.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-ch-mat.cc,
ov-class.cc, ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cs-list.cc,
ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-dld-fcn.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc,
ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-lazy-idx.cc,
ov-mex-fcn.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-perm.cc, ov-range.cc,
ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc,
ov-struct.cc, ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc,
ov-uint8.cc, ov-usr-fcn.cc, ov.cc, ovl.cc, octave.cc, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-double-conv.cc, op-fcdm-fcdm.cc,
op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc,
op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc,
op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc,
op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc,
op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc,
op-int-conv.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc,
op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc,
op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc,
op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc,
op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc,
op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, pt-arg-list.cc,
pt-array-list.cc, pt-assign.cc, pt-binop.cc, pt-bp.cc, pt-cbinop.cc,
pt-cell.cc, pt-check.cc, pt-classdef.cc, pt-cmd.cc, pt-colon.cc, pt-colon.h,
pt-const.cc, pt-decl.cc, pt-eval.cc, pt-except.cc, pt-exp.cc, pt-fcn-handle.cc,
pt-funcall.cc, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-loop.cc, pt-mat.cc,
pt-misc.cc, pt-pr-code.cc, pt-select.cc, pt-stmt.cc, pt-unop.cc, pt.cc,
token.cc, Array-jit.cc, Array-os.cc, Array-sym.cc, Array-tc.cc, version.cc:
Indent #ifdef blocks in libinterp.
| author | Rik <rik@octave.org> |
|---|---|
| date | Fri, 05 Feb 2016 16:29:08 -0800 |
| parents | 791dcb32b657 |
| children | 2cf8bc5c7017 |
| rev | line source |
|---|---|
| 5610 | 1 /* |
| 2 | |
|
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3 Copyright (C) 2005-2015 David Bateman |
| 11523 | 4 Copyright (C) 1998-2005 Andy Adler |
| 7016 | 5 |
| 6 This file is part of Octave. | |
| 5610 | 7 |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 5610 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 5610 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
|
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25 # include <config.h> |
| 5610 | 26 #endif |
| 27 | |
| 28 #include "defun-dld.h" | |
| 29 #include "error.h" | |
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30 #include "errwarn.h" |
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31 #include "ovl.h" |
| 5610 | 32 #include "utils.h" |
| 33 | |
| 5616 | 34 #include "oct-sparse.h" |
| 5610 | 35 #include "ov-re-sparse.h" |
| 36 #include "ov-cx-sparse.h" | |
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37 #include "sparse-qr.h" |
| 5610 | 38 |
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39 #if defined (ENABLE_64) |
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40 # define CXSPARSE_NAME(name) cs_dl ## name |
| 5610 | 41 #else |
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42 # define CXSPARSE_NAME(name) cs_di ## name |
| 5610 | 43 #endif |
| 44 | |
| 45 static RowVector | |
| 46 put_int (octave_idx_type *p, octave_idx_type n) | |
| 47 { | |
| 48 RowVector ret (n); | |
| 49 for (octave_idx_type i = 0; i < n; i++) | |
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50 ret.xelem (i) = p[i] + 1; |
| 5610 | 51 return ret; |
| 52 } | |
| 53 | |
| 6066 | 54 #if HAVE_CXSPARSE |
| 55 static octave_value_list | |
| 56 dmperm_internal (bool rank, const octave_value arg, int nargout) | |
| 5610 | 57 { |
| 58 octave_value_list retval; | |
| 59 octave_idx_type nr = arg.rows (); | |
| 60 octave_idx_type nc = arg.columns (); | |
| 61 SparseMatrix m; | |
| 62 SparseComplexMatrix cm; | |
| 5648 | 63 CXSPARSE_NAME () csm; |
| 5610 | 64 csm.m = nr; |
| 65 csm.n = nc; | |
| 7520 | 66 csm.x = 0; |
| 5610 | 67 csm.nz = -1; |
| 68 | |
| 69 if (arg.is_real_type ()) | |
| 70 { | |
| 71 m = arg.sparse_matrix_value (); | |
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72 csm.nzmax = m.nnz (); |
| 5610 | 73 csm.p = m.xcidx (); |
| 74 csm.i = m.xridx (); | |
| 75 } | |
| 76 else | |
| 77 { | |
| 78 cm = arg.sparse_complex_matrix_value (); | |
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79 csm.nzmax = cm.nnz (); |
| 5610 | 80 csm.p = cm.xcidx (); |
| 81 csm.i = cm.xridx (); | |
| 82 } | |
| 83 | |
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84 if (nargout <= 1 || rank) |
| 5610 | 85 { |
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86 octave_idx_type *jmatch = CXSPARSE_NAME (_maxtrans) (&csm, 0); |
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87 if (rank) |
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88 { |
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89 octave_idx_type r = 0; |
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90 for (octave_idx_type i = 0; i < nc; i++) |
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91 if (jmatch[nr+i] >= 0) |
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92 r++; |
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93 retval(0) = static_cast<double>(r); |
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94 } |
| 5610 | 95 else |
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96 retval(0) = put_int (jmatch + nr, nc); |
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97 CXSPARSE_NAME (_free) (jmatch); |
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98 } |
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99 else |
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100 { |
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101 CXSPARSE_NAME (d) *dm = CXSPARSE_NAME(_dmperm) (&csm, 0); |
| 6066 | 102 |
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103 //retval(5) = put_int (dm->rr, 5); |
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104 //retval(4) = put_int (dm->cc, 5); |
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105 retval = ovl (put_int (dm->p, nr), put_int (dm->q, nc), |
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106 put_int (dm->r, dm->nb+1), put_int (dm->s, dm->nb+1)); |
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107 |
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108 CXSPARSE_NAME (_dfree) (dm); |
| 5610 | 109 } |
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110 |
| 6066 | 111 return retval; |
| 112 } | |
| 113 #endif | |
| 114 | |
| 115 DEFUN_DLD (dmperm, args, nargout, | |
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116 "-*- texinfo -*-\n\ |
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117 @deftypefn {} {@var{p} =} dmperm (@var{S})\n\ |
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118 @deftypefnx {} {[@var{p}, @var{q}, @var{r}, @var{S}] =} dmperm (@var{S})\n\ |
| 6066 | 119 \n\ |
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120 @cindex @nospell{Dulmage-Mendelsohn} decomposition\n\ |
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121 Perform a @nospell{Dulmage-Mendelsohn} permutation of the sparse matrix\n\ |
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122 @var{S}.\n\ |
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123 \n\ |
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124 With a single output argument @code{dmperm} performs the row permutations\n\ |
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125 @var{p} such that @code{@var{S}(@var{p},:)} has no zero elements on the\n\ |
| 6066 | 126 diagonal.\n\ |
| 127 \n\ | |
| 128 Called with two or more output arguments, returns the row and column\n\ | |
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129 permutations, such that @code{@var{S}(@var{p}, @var{q})} is in block\n\ |
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130 triangular form. The values of @var{r} and @var{S} define the boundaries\n\ |
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131 of the blocks. If @var{S} is square then @code{@var{r} == @var{S}}.\n\ |
| 6066 | 132 \n\ |
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133 The method used is described in: @nospell{A. Pothen & C.-J. Fan.}\n\ |
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134 @cite{Computing the Block Triangular Form of a Sparse Matrix}.\n\ |
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135 ACM Trans. Math. Software, 16(4):303-324, 1990.\n\ |
| 6066 | 136 @seealso{colamd, ccolamd}\n\ |
| 137 @end deftypefn") | |
| 138 { | |
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139 #if HAVE_CXSPARSE |
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140 |
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141 if (args.length () != 1) |
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142 print_usage (); |
| 6066 | 143 |
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144 return ovl (dmperm_internal (false, args(0), nargout)); |
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145 |
| 5610 | 146 #else |
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147 err_disabled_feature ("dmperm", "CXSparse"); |
| 5610 | 148 #endif |
| 149 } | |
| 150 | |
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151 /* |
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153 %! n = 20; |
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154 %! a = speye (n,n); |
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155 %! a = a(randperm (n),:); |
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156 %! assert (a(dmperm (a),:), speye (n)); |
| 5610 | 157 |
| 7243 | 158 %!testif HAVE_CXSPARSE |
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159 %! n = 20; |
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160 %! d = 0.2; |
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161 %! a = tril (sprandn (n,n,d), -1) + speye (n,n); |
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162 %! a = a(randperm (n), randperm (n)); |
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163 %! [p,q,r,s] = dmperm (a); |
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164 %! assert (tril (a(p,q), -1), sparse (n, n)); |
| 5610 | 165 */ |
| 166 | |
| 6066 | 167 DEFUN_DLD (sprank, args, nargout, |
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168 "-*- texinfo -*-\n\ |
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169 @deftypefn {} {@var{p} =} sprank (@var{S})\n\ |
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170 @cindex structural rank\n\ |
| 6066 | 171 \n\ |
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172 Calculate the structural rank of the sparse matrix @var{S}.\n\ |
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173 \n\ |
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174 Note that only the structure of the matrix is used in this calculation based\n\ |
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175 on a @nospell{Dulmage-Mendelsohn} permutation to block triangular form. As\n\ |
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176 such the numerical rank of the matrix @var{S} is bounded by\n\ |
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177 @code{sprank (@var{S}) >= rank (@var{S})}. Ignoring floating point errors\n\ |
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178 @code{sprank (@var{S}) == rank (@var{S})}.\n\ |
| 6066 | 179 @seealso{dmperm}\n\ |
| 180 @end deftypefn") | |
| 181 { | |
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182 #if HAVE_CXSPARSE |
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183 |
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184 if (args.length () != 1) |
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185 print_usage (); |
| 6066 | 186 |
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187 return ovl (dmperm_internal (true, args(0), nargout)); |
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188 |
| 6066 | 189 #else |
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190 err_disabled_feature ("sprank", "CXSparse"); |
| 6066 | 191 #endif |
| 192 } | |
| 193 | |
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194 /* |
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195 %!testif HAVE_CXSPARSE |
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196 %! assert (sprank (speye (20)), 20) |
| 7243 | 197 %!testif HAVE_CXSPARSE |
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198 %! assert (sprank ([1,0,2,0;2,0,4,0]), 2) |
| 6066 | 199 |
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200 %!error sprank (1,2) |
| 6066 | 201 */ |