AMBER Archive (2003)

Subject: Re: AMBER: mpich problem

From: Viktor Hornak (viktor.hornak_at_sunysb.edu)
Date: Sun Nov 09 2003 - 18:06:53 CST

Qiang,

Did you try compiling with g77? There may be issues with amber7 (is that
the version you're referring to?) and mpich compiled with ifc. You lose
the higher optimiziation when not compiling with ifc, but it'll help to
troubleshoot the problem. I recall that compiling non-parallel amber7
with ifc worked fine but there were some issues with mpich compiled version.

Cheers,
-Viktor

Qiang Lu wrote:

> Hi amber,
>
> I compiled mpich and sander with ifc on dual cpu xoen(has been set to 4 cpu).
> When I ran benchmark jac program.
>
> mpirun -np 2 /home/qiangl/bin/sander_ifcmpi -O -i mdin -c inpcrd.equil -p prmtop -o bench.jac.out
>
> I got the following error message:
>
> p0_18622: p4_error: Child process exited while making connection to remote process on syngene34.ics.uci.edu: 0
> qiangl_at_syngene33 % /home/qiangl/mpich/bin/mpirun: line 1: 18442 Broken pipe
>
> I did configure the mpirun with ssh i.e./configure -rsh=ssh -cc=$CC
> -fc=$FC, because the rsh is not allowed.
> and I can ssh to syngene34.ics.uci.edu manually with no password. Also
> syngene34.ics.uci.edu has been added to known_hosts.
>
> Also the machine file has been set as following
> In $MPICH_HOME/share/machines.LINUX,
> syngene33.ics.uci.edu:2
> syngene34.ics.uci.edu:2
> syngene35.ics.uci.edu:2
> syngene36.ics.uci.edu:2
> syngene37.ics.uci.edu:2
> syngene38.ics.uci.edu:2
> ....
>
> Does any one knows what happening here. What's wrong with mpirun?
>

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