I am attempting to install the parallel version of ADF on an RS/6000 and
an athlon running linux to run some tests. I recompiled ADF on the
RS/6000 choosing pvm in the configure script (the binaries would not run)
and installed the pre-compiled executables on the linux box again choosing
pvm in the configure script. I then installed pvm and compiled it on
both machines.

The adf programs seem to work fine (give the expected answers in to the
provided example scripts)
The pvm installation also seems fine as the examples that came with it
work fine.

This works on both computers:
Configure pvm to only see the localhost
Run the example H2O geometry optimization
execute adf -d -n2 in script
this splits the process into two and there are kid output files
in directory defined by $PVM_WD

However, if I then add the second host from the pvm console and
re-run the same calculation with adf -n2
the program gets down to input for parallel execution where it fails
with :
Requested number of nodes (nproc): 2
 Allow only one task per CPU (duphost not specified)
 File for starting kids (prog): /usr/ADF2/bin/adfs
 ERROR: failed to create child processes on host cynthia.chem.ualberta.ca
  info = 0
 Error kid 1, error code: -7

***************************************************************************************************

              Q U I C K X

 ppspaw: unable to start child processes

There are no errors in the /tmp/pvml* files and I don't know what to do
to track this down. It's seems to me that if adfs and pvm can spawn a
second task on the local machine then it should work over the network
since the basic pvm tests do.

I really don't know how to track this problem down, any help would be
appreciated.

kjharris_at_sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org
Received on 2002-03-03 09:19:51