Problem: parallel search engine, Mozart 1.3.1 / Ubuntu 6.06

Adam Meissner KARI ameis at put.poznan.pl
Mon Jan 29 20:42:23 CET 2007


Hello, Everyone!

I installed Mozart 1.3.1 (20050914) under Ubuntu 6.06 LTS - Dapper Drake. 
Unfortunately, the parallel search engine does not work there. It looks 
like the problem lies on the side of the worker, because everything works 
well when the worker is ran on the other machine (with Mozart 1.3.1 
(20040617) under Windows NT 4.0 and cygwin). However, when both the worker 
and the manager reside on the same Ubuntu site the whole computations 
suspend. Below, the partial listing form System Monitor is given (I've 
rewritten it form the screen therefore it may contain typos).

emacs        Sleeping   /usr/bin/emacs -l oz.elc -f run-oz test.oz

emulator.exe Sleeping	/usr/lib/mozart/platform/linux-i486/emulator.exe 
-u x-oz://system/OPI.ozf --

tk.exe       Sleeping   /usr/lib/mozart/platform/linux-i486/tk.exe

ssh          Sleeping   ssh c09 exec ozengine x-oz://system/RemoteServer 
--nodetached --ticket=x-ozticket://127.0.0.1:9000:LBOoiy:wJw/y:w:w:s:IjHFY 
--port=0 --ip=default

sshd         Sleeping   sshd:mozart1 at notty

emulator.exe Sleeping  /usr/lib/mozart/platform/linux-i486/emulator.exe -u 
x-oz://system/RemoteServer -- --nodetached 
--ticket=x-ozticket://127.0.0.1:9000:LBOoiy:wJw/y:w:w:s:IjHFY --port=0 
--ip=default

The network layer, including ssh, is configured properly for sure. Do you 
have any idea how to fix this problem? It is a really important and urgent 
think to me thus I would very appreciate any piece of a good advice.

I'm not a permanent reader of this list, so would you please Cc: your 
reply directly to my account, i.e. Adam.Meissner at put.poznan.pl

With kind regards,

Adam Meissner


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