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Re: Mathematica 8 remote parallel kernels

  • To: mathgroup at smc.vnet.net
  • Subject: [mg120590] Re: Mathematica 8 remote parallel kernels
  • From: "Oleksandr Rasputinov" <oleksandr_rasputinov at hmamail.com>
  • Date: Sat, 30 Jul 2011 06:00:58 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j0truv$d50$1@smc.vnet.net>

Perhaps you are exceeding your quota of kernel licences? (Particularly  
likely on a shared server where others may or may not also be using some 
of the available licences at any given time.) Another possibility, if you  
are trying to launch a large number of parallel kernels, is that you are 
running into some kind of limitation on the number of concurrent TCP/IP 
connections.

Other than that, it is likely platform-dependent, but you do not mention 
what platform you are using. Correctly setting up Windows  
client-to-Windows server parallel kernel operation is slightly more  
difficult than for the other platforms, for example.

On Fri, 29 Jul 2011 09:45:19 +0100, Iv=E1n Pulido Sanchez  
<ijpulido.s at gmail.com> wrote:

> Hello,
>
> When I try to configure remote kernels in Mathematica via
> Evaluation>Parallel Kernel Configuration ... then I go to "Remote  
> Kernels"
> and add hosts, after that I try to Launch the remote kernels and only =

> some
> of them get launched (the number of them varies),and finally I get a msg
> like the following.
>
> KernelObject::rdead: Subkernel connected through remote[nodo2] appears 
> dead.
>>> LinkConnect::linkc: Unable to connect to  
>>> LinkObject[36154 at 192.168.1.104,
> 49648 at 192.168.1.104,38,12]. >> General::stop: Further output of
> LinkConnect::linkc will be suppressed during this calculation. >>
>
> Any ideas how to get this working?
>
> Take into account it sometimes does load some of the remote kernels but
> never all of them. Thanks in advance I hope you can help me with this.



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