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Parallella Community Supercomputing for Everyone 2014-08-20T13:51:50+00:00 https://parallella.org/forums/feed.php?f=41&t=1652 2014-08-20T13:51:50+00:00 2014-08-20T13:51:50+00:00 https://parallella.org/forums/viewtopic.php?t=1652&p=10236#p10236 <![CDATA[Re: Creating indipendent random numbers on each core]]> the internal memory reduces the available memory considerably. Thus the only solution seems to use my own code.

Statistics: Posted by isk — Wed Aug 20, 2014 1:51 pm

]]> 2014-08-20T12:24:01+00:00 2014-08-20T12:24:01+00:00 https://parallella.org/forums/viewtopic.php?t=1652&p=10233#p10233 <![CDATA[Re: Creating indipendent random numbers on each core]]>
On your last point thats why you search for someone who has done it already (like knuth) and use theirs? Do you even know if the one in the C library is any "good" or are you just going on trust? If you needed a particularly good PRNG you would have to validate the C library anyway.

As far as I know (but i could be wrong), right now the C library is simply broken if you put any writable storage into the shared memory area because for a given program they will all use the same linked C library instance (and variables). Last time I looked (IIRC, some time ago) the C library itself just isn't built with any support for multi-threading whatsoever. It works fine if every core has it's own private copy because then it isn't physically multi-threading.

Statistics: Posted by notzed — Wed Aug 20, 2014 12:24 pm

]]> 2014-08-20T11:21:41+00:00 2014-08-20T11:21:41+00:00 https://parallella.org/forums/viewtopic.php?t=1652&p=10230#p10230 <![CDATA[Re: Creating indipendent random numbers on each core]]> Statistics: Posted by isk — Wed Aug 20, 2014 11:21 am

]]> 2014-08-19T10:20:53+00:00 2014-08-19T10:20:53+00:00 https://parallella.org/forums/viewtopic.php?t=1652&p=10211#p10211 <![CDATA[Re: Creating indipendendt random numbers on each core]]> Statistics: Posted by notzed — Tue Aug 19, 2014 10:20 am

]]> 2014-08-19T12:32:35+00:00 2014-08-18T14:21:13+00:00 https://parallella.org/forums/viewtopic.php?t=1652&p=10190#p10190 <![CDATA[Creating indipendent random numbers on each core]]> Statistics: Posted by isk — Mon Aug 18, 2014 2:21 pm

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