respected sir ,
the program is recognized by all the nodes now.thanku very 
much.this was when i tried to run test program in amber6/test as 
make test.sander
Now I tried to test run a realcase promblem as
mpirun -np 4 sander_classic -O -i ...
But just after the program started it stops with following 
message
   $ mpirun -np 4 sander_classic -O -i minim.in -o test.out -p 
test.top -c test.coord -r tres
tart -ref test.coord
  All processors started
  All processors started
   Unit    5 Error on OPEN: minim.in
[0] MPI Abort by user Aborting program !
[0] Aborting program!
p0_13126:  p4_error: : 1
  All processors started
   Unit    5 Error on OPEN: minim.in
[0] MPI Abort by user Aborting program !
[0] Aborting program!
p0_10876:  p4_error: : 1
-----------------------------------------------------------------------------
It seems that [at least] one of processes that was started with 
mpirun
did not invoke MPI_INIT before quitting (it is possible that more 
than
one process did not invoke MPI_INIT -- mpirun was only notified of 
the
first one, which was on node n0).
mpirun can *only* be used with MPI programs (i.e., programs that
invoke MPI_INIT and MPI_FINALIZE).  You can use the "lamexec" 
program
to run non-MPI programs over the lambooted nodes.
-----------------------------------------------------------------------------
Killed
   Unit    5 Error on OPEN: minim.in
[0] MPI Abort by user Aborting program !
[0] Aborting program!
  All processors started
p0_12186:  p4_error: : 1
what is the promblem.many here in my department are waiting for ur 
invaluable help
thanking u -goldsmith
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Received on Fri Jul 11 2003 - 16:53:00 PDT