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replace mersenne twister by pcg #99

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rurban opened this issue Nov 22, 2015 · 0 comments
Open

replace mersenne twister by pcg #99

rurban opened this issue Nov 22, 2015 · 0 comments
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@rurban
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enhancement
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0.4

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rurban commented Nov 22, 2015 •
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http://www.pcg-random.org/
See branch pcg

First without inlining 6% slower, now with inlining regained the 6% (5a39798)
pcg quality is better, but only 64bit.

http://xoroshiro.di.unimi.it/xoroshiro128plus.c is broken.
@rurban rurban self-assigned this Nov 22, 2015
@rurban rurban added this to the 0.4 milestone Nov 22, 2015
rurban pushed a commit that referenced this issue Nov 22, 2015
replace 32bit mersenne twister with pcg
41e3aa4 
and added bounds argument for rand and num rand.
See GH #99
rurban pushed a commit that referenced this issue Nov 22, 2015
replace 32bit mersenne twister with pcg
40d9df3 
and added bounds argument for rand and num rand.
See GH #99
rurban pushed a commit that referenced this issue Nov 22, 2015
replace 32bit mersenne twister with pcg
dea2f7d 
and added bounds argument for rand and num rand.
See GH #99

But it is 6.8% slower than mt:
3m11.529s vs 2m58.521s for binarytrees.pn
@rurban rurban mentioned this issue Dec 7, 2015
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rurban pushed a commit that referenced this issue Jan 14, 2016
replace 32bit mersenne twister with pcg
29365e9 
and added bounds argument for rand and num rand.
See GH #99

But it is 6.8% slower than mt:
3m11.529s vs 2m58.521s for binarytrees.pn
rurban pushed a commit that referenced this issue Dec 2, 2019
@rurban
replace 32bit mersenne twister with pcg
c2f5d16 
and added bounds argument for rand and num rand.
See GH #99

But it is 6.8% slower than mt:
3m11.529s vs 2m58.521s for binarytrees.pn
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