Newsgroups: comp.parallel.pvm
From: haferman@icaen.uiowa.edu (Jeff Haferman)
Subject: Re: NOT using /pvm3/bin/PVM_ARCH
Organization: University of Iowa, Iowa City, IA, USA
Date: 27 Sep 1994 16:28:20 GMT
Message-ID: <369h74$kpv@nexus.uiowa.edu>

In article <367qfg$450@taco.cc.ncsu.edu>, jvbutera@unity.ncsu.edu (Jeffrey Victor Butera) writes:
> I'm having some difficulties "forcing" PVM to use executables and
> I/O files NOT the in the standard /pvm3/bin/PVM_ARCH directories.
> 
> PVM version 3.3.4
> PVM_ARCH = RS6K
> PVM_ROOT = ~/pvm3
> 
> I think my problems are related to the fact that I have PVM
> running over 8 workstations no the SAME file server.  Hence, if I want
> each node to look for a different executable or input file, I have to 
> expressly tell it.
> 
> My hostfile looks like:
> 
> crsc1.math.ncsu.edu ep=$HOME/crsc1 wd=$HOME/crsc1
> crsc2.math.ncsu.edu ep=$HOME/crsc2 wd=$HOME/crsc2
> ....
> crsc8.math.ncsu.edu ep=$HOME/crsc8 wd=$HOME/crsc8
> 
> On this sample program, I have each node read in two numbers from a
> different data file, append these to a vector and then pass the vector
> to the next node.  Hence, the result should be something like
> v=[x01 x02 x11 x12 .. x71 x72] where xij refers to node i, input j
> for 8 nodes.  Inevitably, at least one node is looking at an input file
> from another node - I'm getting v=[x01 x02 x01 x02 x21 x22] for three nodes.
> IE: node 0 and 2 "find" their own input file OK, but node 1 is (somehow)
> getting hold of node 0's data.  There is no path set to any of these
> directories.   And if it's any help, it *always* the second machine
> in the list above that "finds" the data for the first machine.
> (IE: crsc2 reads crsc1's input.data file) Or, if the second machine in the
> list happens to be the host, then the program hangs indefintely.
> 
> Any ideas?
> Jeff Butera
> 
-- 
==============================================================================
+            Jeff Haferman                         PH: (319) 335-5384        +
+ Department of Mechanical Engineering             FX: (319) 335-5669        +
+  and Center for Global and Regional            The University of Iowa      +
+        Environmental Research                   Iowa City, IA  52242       +
==============================================================================
+ http://www.cgrer.uiowa.edu/people/haferman e-mail:haferman@icaen.uiowa.edu +
==============================================================================


