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Re: thread-safe random numbers...

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> "Rick C. Hodgin"  wrote in message news:5b63a727-afb4-42c2-93d6-> > 
> 844989aa7e58@googlegroups.com...

> > On Wednesday, May 27, 2015 at 11:22:27 PM UTC-4, Chris M. Thomasson 
> > wrote:
> > I am trying to find the standard method for creating
> > random numbers in a thread-safe manner in C.

[...]

> I would just wrap the function you use the call to retrieve the next
> random number in a semaphore of some kind.  That would give it fully
> atomic access, first come, first served, and minimal delay because
> of the speed in the random algorithm (assuming you're using the C
> algorithm).

Why not create an instance of PRNG on a per-thread basis? I
want to try and avoid threads fighting over shared location(s)
as much as possible. A semaphore would work fine, however, the
overheads would be way too much for some of my applications
Rick. 

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thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-05-27 20:22 -0700
  Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-05-28 11:11 -0700
  Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-05-28 11:19 -0700
    Re: thread-safe random numbers... Rosario19 <Ros@invalid.invalid> - 2015-05-29 07:28 +0200
  Re: thread-safe random numbers... James Kuyper <jameskuyper@verizon.net> - 2015-05-28 14:22 -0400
    Re: thread-safe random numbers... Keith Thompson <kst-u@mib.org> - 2015-05-28 12:38 -0700
      Re: thread-safe random numbers... James Kuyper <jameskuyper@verizon.net> - 2015-05-28 16:42 -0400
      Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-05-28 13:57 -0700
      Re: thread-safe random numbers... Nobody <nobody@nowhere.invalid> - 2015-05-29 22:42 +0100
  Re: thread-safe random numbers... Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 11:56 -0700
    Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 14:03 -0700
      Re: thread-safe random numbers... Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 13:44 -0700
  Re: thread-safe random numbers... "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-10 12:01 -0700
    Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 13:53 -0700
      Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 13:58 -0700
      Re: thread-safe random numbers... "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-10 14:04 -0700
        Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 14:23 -0700
          Re: thread-safe random numbers... Keith Thompson <kst-u@mib.org> - 2015-07-10 17:12 -0700
            Re: thread-safe random numbers... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 18:58 -0700
      Re: thread-safe random numbers... Rosario19 <Ros@invalid.invalid> - 2015-07-11 11:13 +0200

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