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Re: Kernels dying on parallel code

  • To: mathgroup at smc.vnet.net
  • Subject: [mg111471] Re: Kernels dying on parallel code
  • From: "Jon Harrop" <usenet at ffconsultancy.com>
  • Date: Mon, 2 Aug 2010 07:06:49 -0400 (EDT)
  • References: <i33ctt$85p$1@smc.vnet.net>

I only have a license for 4 kernels but I'd expect Mathematica to tell me that 
rather than spew out pages of errors every time I try to use parallelism. I 
just wanted to check that everyone else was seeing the same behaviour.

Cheers,
Jon.

"Zach Bjornson" <bjornson at mit.edu> wrote in message 
news:i33ctt$85p$1 at smc.vnet.net...
> Do you have a proper license for 8 kernels? The normal home(?) license is 
> only
> for four kernels; this may be Mathematica's way of saying you can only use
> four. Just a guess.
>
> Quoting Jon Harrop <usenet at ffconsultancy.com>:
>
>> I have an 8-core desktop composed of two quadcore Xeons. Whenever I try 
>> to
>> run parallel Mathematica 7.0.1 code it tries to spawn 8 kernels and then
>> four of them die, resulting in lots of communication errors. Is this 
>> normal?
>>
>> --
>> Dr Jon Harrop, Flying Frog Consultancy Ltd.
>> http://www.ffconsultancy.com
>>
>>
>>
>
>
> 



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