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Diffstat (limited to 'jni/ruby/benchmark/bm_so_matrix.rb')
-rw-r--r-- | jni/ruby/benchmark/bm_so_matrix.rb | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/jni/ruby/benchmark/bm_so_matrix.rb b/jni/ruby/benchmark/bm_so_matrix.rb new file mode 100644 index 0000000..e2c5c8e --- /dev/null +++ b/jni/ruby/benchmark/bm_so_matrix.rb @@ -0,0 +1,48 @@ +#!/usr/bin/ruby +# -*- mode: ruby -*- +# $Id: matrix-ruby.code,v 1.4 2004/11/13 07:42:14 bfulgham Exp $ +# http://www.bagley.org/~doug/shootout/ + +n = 60 #Integer(ARGV.shift || 1) + +size = 40 + +def mkmatrix(rows, cols) + count = 1 + mx = Array.new(rows) + (0 .. (rows - 1)).each do |bi| + row = Array.new(cols, 0) + (0 .. (cols - 1)).each do |j| + row[j] = count + count += 1 + end + mx[bi] = row + end + mx +end + +def mmult(rows, cols, m1, m2) + m3 = Array.new(rows) + (0 .. (rows - 1)).each do |bi| + row = Array.new(cols, 0) + (0 .. (cols - 1)).each do |j| + val = 0 + (0 .. (cols - 1)).each do |k| + val += m1.at(bi).at(k) * m2.at(k).at(j) + end + row[j] = val + end + m3[bi] = row + end + m3 +end + +m1 = mkmatrix(size, size) +m2 = mkmatrix(size, size) +mm = Array.new +n.times do + mm = mmult(size, size, m1, m2) +end +# puts "#{mm[0][0]} #{mm[2][3]} #{mm[3][2]} #{mm[4][4]}" + + |