% Copyright (C) 2009 VZLU Prague % % This file is part of OctaveForge. % % OctaveForge is free software; you can redistribute it and/or modify % it under the terms of the GNU General Public License as published by % the Free Software Foundation; either version 2 of the License, or % (at your option) any later version. % % This program is distributed in the hope that it will be useful, % but WITHOUT ANY WARRANTY; without even the implied warranty of % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the % GNU General Public License for more details. % % You should have received a copy of the GNU General Public License % along with this software; see the file COPYING. If not, see % <http://www.gnu.org/licenses/>. % % function benchmark_permute (n) % description: % Test speed of array permuting. % % arguments: % n = dimension size (n^5 is number of elements) % % results: % % time_21345 = time for [2,1,3,4,5] permutation % time_13425 = time for [1,3,4,2,5] permutation % time_34125 = time for [3,4,1,2,5] permutation % time_45123 = time for [4,5,1,2,3] permutation % function results = benchmark_permute (n, rep) benchutil_default_arg ('n', 30); benchutil_initialize (mfilename) a = zeros (n, n, n, n, n); tic; b = permute (a, [2,1,3,4,5]); time_21345 = toc benchutil_set_result ('time_21345') tic; b = permute (a, [1,3,4,2,5]); time_13425 = toc benchutil_set_result ('time_13425') tic; b = permute (a, [3,4,1,2,5]); time_34125 = toc benchutil_set_result ('time_34125') tic; b = permute (a, [4,5,1,2,3]); time_45123 = toc benchutil_set_result ('time_45123')

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