[mpich-discuss] mpich2 1.0.8 on windows - domain required?

[Jayesh Krishna]

Hi,
 The machines don't have to be part of the same domain to be part of your
MPI job (This requirement is only for setups which use the SSPI
authentication mechanism to launch MPI jobs).
 Can you run a non-MPI command like hostname on the local machine ?
 
   mpiexec -n 2 hostname
 
 Is the user "thomas" a domain user ? In that case you should register the
username with the domainname (DOMAINNAME\USERNAME) when registering the
username (mpiexec -register) with mpiexec.
 Let us know if you still have problems.
 
Regards,
Jayesh

  _____  

From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Thomas Blom
Sent: Sunday, November 02, 2008 8:45 AM
To: mpich-discuss at mcs.anl.gov
Subject: [mpich-discuss] mpich2 1.0.8 on windows - domain required?


Hello,

I have just subscribed to the list to ask a question about mpich2 on
windows.  (I found the archives but don't see a way to search them).

Is it a requirement that the windows computers participating in mpich2 be
part of a windows domain?  I see things in the documentation that perhaps
imply this, but not state it outright.

My computers are simply on a local network, and part of a "workgroup".
The smpd process manager can "see" the other systems to some extent, since
the result of

smpd -status mb13    // mb13 is the hostname of my other windows pc

correctly finds that smpd is running on my other host.  But executing
mpiexec and providing hostnames in a "machinefile" e.g.

mpiexec -n 4 -machinefile machines echo %COMPUTERNAME%

fails with:

Credentials for thomas rejected connecting to mb13


I have taken care that the username/pass is identical on each machine, the
user is admin, etc.  I have followed steps I've found in various documents
about uninstalling/installing smpd and providing the identical passphrase
on each, running mpiexec -register, etc...

Any ideas?  (Or is it just that I must be running on a domain, which I
cannot find concrete documentation about)

thanks very much, 
thomas blom in austin, tx

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