[mpich-discuss] Race condition when accessing ~/.smpd duringstartup

[Jayesh Krishna]

 Hi,
  Good to know its working for you now. 
  Let us know if you encounter any other problems.

Regards,
Jayesh

-----Original Message-----
From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Reuti
Sent: Tuesday, November 25, 2008 12:22 PM
To: mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] Race condition when accessing ~/.smpd
duringstartup

Am 25.11.2008 um 17:25 schrieb Jayesh Krishna:

>  Hi,
>   The "SMPD_OPTION_NO_DYNAMIC_HOSTS" option should be available in the 
> latest stable release of MPICH2, 1.0.8.
>   Can you retry by deleting all entries in your existing smpd config 
> file (".smpd") and replacing it with a single line
>
>         phrase=MYPASSPHRASEFORSMPD
>
>   In the above setup SMPD should not be modifying the file. In our 
> nightly tests we create the smpd config file in the shared (shared 
> among multiple machines) home directory of the user & set the 
> "SMPD_OPTION_NO_DYNAMIC_HOSTS".
>
Okay, found it.

Also before the mpiexec the above environment variable (i.e. in a new
session/window on the node) it must also be set. I was already wondering,
why only one host was mentioned in ~/.smpd since I set it, but not all
other any longer.

Once the entry ist there, the shutdown will also try to remove the
entries, independent whether at time of shutdown the environment variable
is set or not.

Thx a lot, it's working now for me without any `sleep`command.

-- Reuti
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