[MPICH] MPICH2 on Windows XP Workgroups and Samba networks

Calin Iaru calin at dolphinics.no
Tue Apr 4 09:27:48 CDT 2006

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,

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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