I switched to SFMT [0]. But that was some years ago, there might be faster
options now.
I also generated it in megabyte batches and consume it from there, generating a
new megabyte as needed.
Lastly, I had some code to make sure I did not consume more bits of entropy
than required. Two uniform choices, one bit. Three choices: fractional bits.
[0]
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/
— Remco
-----Original Message-----
From: folkert <folk...@vanheusden.com>
To: computer-go@computer-go.org
Sent: Sun, 29 Mar 2015 17:50
Subject: [Computer-go] fast + good RNG
Hi,
I measured that std::mt19937_64 (the mersenne twister from the standard
c++ libraries) uses about 40% cpu time during playouts.
So I wonder: is there a faster prng while still generating good enough
random?
Folkert van Heusden
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