Then wouldn't it be possible to make PRNG's plugable. The Mersenne
twister is still good as it is but definitely not suitable for every and
any case. Marsialigla's might be a better choice nowadays.
And the seeding can nowadays often been done from reading hardware
random, like on the Raspberry Pi.
e.g.
http://scruss.com/blog/2013/06/07/well-that-was-unexpected-the-raspberry-pis-hardware-random-number-generator/
But that is not an exclusive.
Thaddy
On 28-Jan-16 1:30 PM, Jonas Maebe wrote:
Ondrej Pokorny wrote on Thu, 28 Jan 2016:
Regarding: http://bugs.freepascal.org/view.php?id=29526 (because I
cannot answer on closed issues).
Also: the entire state of the random number generator consists of
regular global variables, so it is not safe to use it from multiple
threads in parallel.
Would it make sense to you to make random thread-safe? E.g. with the
use of "threadvar" instead of "var" for the global variables in
question?
No. The Mersenne twister has a lot of state (about 2KB). Duplicating
this for every thread, along with associated slowdown, is not worth
it. It's better to use a class that encapsulates the state of a random
number generator and then instantiate this class for every thread.
Jonas
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