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authork0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-07-10 13:08:40 +0000
committerk0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-07-10 13:08:40 +0000
commit433af16167aec949c6345ad41b78b17c440b4a6d (patch)
tree42b9a14817cccef4a57177329381f97a7a2ac75c /benchmark/bm_so_spectralnorm.rb
parentf992f4251874a025de09ffecf0f2b8cb984f2201 (diff)
benchmark: drop all bm_ prefix for legacy driver.rb
benchmark/*.rb is only benchmarks now. We don't need prefixes. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'benchmark/bm_so_spectralnorm.rb')
-rw-r--r--benchmark/bm_so_spectralnorm.rb50
1 files changed, 0 insertions, 50 deletions
diff --git a/benchmark/bm_so_spectralnorm.rb b/benchmark/bm_so_spectralnorm.rb
deleted file mode 100644
index 6b97206689..0000000000
--- a/benchmark/bm_so_spectralnorm.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-# The Computer Language Shootout
-# http://shootout.alioth.debian.org/
-# Contributed by Sokolov Yura
-
-def eval_A(i,j)
- return 1.0/((i+j)*(i+j+1)/2+i+1)
-end
-
-def eval_A_times_u(u)
- v, i = nil, nil
- (0..u.length-1).collect { |i|
- v = 0
- for j in 0..u.length-1
- v += eval_A(i,j)*u[j]
- end
- v
- }
-end
-
-def eval_At_times_u(u)
- v, i = nil, nil
- (0..u.length-1).collect{|i|
- v = 0
- for j in 0..u.length-1
- v += eval_A(j,i)*u[j]
- end
- v
- }
-end
-
-def eval_AtA_times_u(u)
- return eval_At_times_u(eval_A_times_u(u))
-end
-
-n = 500 # ARGV[0].to_i
-
-u=[1]*n
-for i in 1..10
- v=eval_AtA_times_u(u)
- u=eval_AtA_times_u(v)
-end
-vBv=0
-vv=0
-for i in 0..n-1
- vBv += u[i]*v[i]
- vv += v[i]*v[i]
-end
-
-str = "%0.9f" % (Math.sqrt(vBv/vv)), "\n"
-# print str