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

Tue Nov 4 09:08:36 CST 2008

Hi,
 Great to know you were able to get things working (Hmmm... interesting
problem you had there...).
 Let us know if you need any further help.

Regards,
Jayesh

  _____  

From: Thomas Blom [mailto:blomcode at gmail.com] 
Sent: Monday, November 03, 2008 7:38 PM
To: Jayesh Krishna; mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] mpich2 1.0.8 on windows - domain required?

Hello,

I have just been able to finally get things working.  The problem was the
username; in windows you can change the "account name" which I did, but
there is a "User Profile" which is mapped to the account name (which
appears to be unchangeable through "legit" methods), and it appears the
name of this user profile is important -- it is reflected for example in
the env var "USERNAME".  

So I renamed the old account, created a *new* account named thomas, and
was able to mpiexec -validate, and then finally reach it from another
machine to run the example cpi.exe program.

Thanks very much for the great help on this forum.

-thomas blom, austin texas

On Mon, Nov 3, 2008 at 7:06 PM, Thomas Blom <blomcode at gmail.com> wrote:

Thanks so much for your timely and detailed help.  Sorry that I became
involved in other issues today and my reply is delayed.

1.  I removed mpich2 completely and reinstalled, and rebooted between and
after these operations (as every superstitious windows-user has learned to
do when problems occur).  I installed for everyone, as I have done
previously.

2.  mpiexec -validate simply prints the statement "FAIL"

3.  I followed your directions for smpd and mpiexec in debug/verbose mode.
Log files are attached.

I will continue to play with this; thanks again for your continued help.
My intuition is that this problem has to do with my having both renamed
the machine and my user account just prior to setting this up a few days
ago (to make the user accounts the same on both machines and make the
machine-name less unwieldy to type).  But every other test I have
performed to check the validity of the new names passes.

-thomas blom, austin tx 

On Mon, Nov 3, 2008 at 11:22 AM, Jayesh Krishna <jayesh at mcs.anl.gov>
wrote:

Hi,
 Can you try re-installing MPICH2 making sure that MPICH2 is installed for
"Everyone" (the default is "Just me" - the user installing MPICH2) and
re-run mpiexec ?
 Can you validate the username/password registered on mb13 using the
"-validate" option of mpiexec (mpiexec -validate)?

 If that does not work please provide us the debug logs for smpd/mpiexec,

On mb13,

1) Stop any instances of smpd running on the machine using the command,
smpd -stop
2) Run smpd in the debug mode & redirect the output to a log file, smpd -d
> smpd.log
3) In another command window run mpiexec in debug/verbose mode and
redirect the output to a logfile, mpiexec -verbose -n 2 hostname >
mpiexec.log
4) Provide us with the mpiexec/smpd log files.

Regards,
Jayesh

  _____  

From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Thomas Blom

Sent: Monday, November 03, 2008 10:41 AM 

To: mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] mpich2 1.0.8 on windows - domain required?

Yes, I've tried this.  To eliminate questions about the machine name
etc... I have

1.  go through network setup wizards again to establish that the machine
name is mb13 and the workgroup is LOGIC; disable  firewall.
(reboot)

1.5 Verify that I can share a folder on mb13, and from the other computer
can successfully map a drive to \\mb13\sharename -- this establishes that
mb13 is the recognized computer name.  And that other computers can reach
it at that name.

2.  uninstall mpich2 completely
3.  install mpich2
(reboot)

4. mpi -register, and provide username/password of an account on the
machine that is a "computer administrator" (thomas)

I still am unable to simply run mpiexec -n 2 hostname.... I get the same
"Credentials for thomas rejected connecting to mb13"

I am able to run 'smpd -status' and it tells me that smpd is running on
mb13.

Good grief... (my build from source & testing on two bsd-based macs took
about 15 minutes)

-thomas

On Mon, Nov 3, 2008 at 10:21 AM, Jayesh Krishna <jayesh at mcs.anl.gov>
wrote:

Hi,
 Try re-registering your username(thomas)/password in mb13 using "mpiexec
-register" command.

Regards,
Jayesh

  _____  

From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Thomas Blom

Sent: Monday, November 03, 2008 10:12 AM 

To: mpich-discuss at mcs.anl.gov

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

The test command suggested (mpiexec -n 2 hostname) works fine on one of
the machines.  On the other machine (both are winXP) I get the error:

Credentials for thomas rejected connecting to mb13
Aborting: Unable to connect to mb13

This is the result of just running locally, not over a network!  In answer
to the previous question, 'thomas' is not a domain user.  This is just two
winXP machines on a local network that are part of the same "workgroup"
but neither are part of any domain.  

I wonder if this has to do with my having changed the machine name on mb13
... but I have since completely uninstalled and installed mpich2.  I left
the default phrase "behappy" during this installation.  I then ran
wmpiregister and entered my username and password (which I use to login to
each machine sucessfully).

I have tried to play with wmpiconfig, but it is a little difficult to
understand how to use this.  I don't find any documentation for it.

Thanks very much for any help....

-thomas blom, austin tx

On Mon, Nov 3, 2008 at 9:01 AM, Jayesh Krishna <jayesh at mcs.anl.gov> wrote:

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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