Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / benchmark-1.1.1 / benchmark_permute.m

diff --git a/octave_packages/benchmark-1.1.1/benchmark_permute.m b/octave_packages/benchmark-1.1.1/benchmark_permute.m
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+% 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')
+