[mpich-discuss] Problem with MPICH2 v1.0.8 on WindowsXP

pisoir ondrej.sluciak at gmail.com
Mon Dec 15 07:42:33 CST 2008

Hi Bob,

Thanks for your advice. It seems that the 2nd solution would be my last 
chance. I just don't know if I want Vista running as the 2nd computer. I 
only have 1 router between the computers, so the 1st solution is not 
applicable for me. I just don't understand why the setting of mpi is so 
different and more complicated than setting mpi on linux.


bob ilgner wrote:
> Hi Ondrej,
> I have had this behaviour on 2 occasions with XP and 1.0.8:
> 1) Router interference from a second  network router prevented 
> validation or any other MPI comms. Switching 2nd router off and using 
> only 1 router solved problem.
> 2) Nothing but nothing helped and I fiddled my guts out and received 
> some good advice. So installed Vista on 2nd partition and booted into 
> that for MPI work. Worked a charm.
> Regards, bob
> On Mon, Dec 15, 2008 at 12:11 AM, pisoir <ondrej.sluciak at gmail.com 
> <mailto:ondrej.sluciak at gmail.com>> wrote:
>     Hello,
>     I have one problem on Windows XP SP3 and I'm starting to feel
>     really desperate now. Thanks to help of this:
>     http://lists.mcs.anl.gov/pipermail/mpich-discuss/2008-November/000037.html
>     I was able to get over the validation of mpiexec (mpiexec
>     -validate returned SUCCESS). Anyway, if I want to run even the
>     simplest program possible,i.e.  mpiexec -host second_host
>     hostname, I always get the error:
>     Credentials for Ondrej rejected connecting to shrek
>     Aborting: Unable to connect to shrek
>     (Ondrej is the name of first computer, shrek is the name of
>     second). If I do "smpd -status shrek" (from Ondrej computer), I get:
>     smpd running on shrek
>     So it seems that everything is ok. I turned off the firewalls, I
>     can ping each other and also the shared folders are accessible
>     from both computers. Just the mpi is not running as it should. I
>     reinstalled mpich2 and rebooted computer so many times, that it
>     couldn't be reinstalled and rebooted any more. Does anyone have
>     some similar problems or at least have any clue how to solve this?
>     Thanks.
>     Ondrej

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