[MPICH] MPICH2 on Windows XP Workgroups and Samba networks

DevTeam devteam at transvalor.com
Wed Apr 5 04:19:03 CDT 2006

Hi Calin,

As far as I know it's a way found by Microsoft to avoid people using a 
simple XP licence to administrate a server. If you want to have more than 10 
connection you need to have windows 2003 server installed on your machine 
which is much more expensive ...



----- Original Message ----- 
From: "Calin Iaru" <calin at dolphinics.no>
To: <peter_raeth at juno.com>
Cc: <mpich-discuss at mcs.anl.gov>
Sent: Tuesday, April 04, 2006 4:27 PM
Subject: Re: [MPICH] MPICH2 on Windows XP Workgroups and Samba networks

> Hi Petter,
>    suppose you run from mycomputer
>        mpiexec -n 11 \\mycomputer\c$\cpi.exe whit ssm channel enabled. You 
> will have 11 machines trying to connect to the UNC path \\mycomputer. 
> There is a knowledge base article about Windows XP accepting no more than 
> 10 connections from remote machines. These connections are of any type: 
> pipes, mapped drives and more. For reference, see 
> http://support.microsoft.com/?scid=kb;en-us;314882
>    This does not mean that the cluster size is limited to 10 XP machines. 
> It just means that the path from which the test is launched should not 
> belong to any XP node.
> Best regards,
>    Calin
> peter_raeth at juno.com wrote:
>> This is a most interesting comment, "Windows XP which can handle no more 
>> than 10 remote connections."  Does this mean that MPICH2 Windows XP 
>> clusters are limited to 10 nodes?

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