AMBER Archive (2007)

Subject: AMBER: Error: "Suspended (tty input)" & "Unit 6 Error on OPEN: md.out"

From: Khatcharin Siriwong (skhatcha_at_kku.ac.th)
Date: Sat Apr 21 2007 - 02:42:14 CDT

Dear All,

I am testing Amber9 on Linux cluster. Parallel jobs are controlled by
MPICH2 (ch_p4 and ch_gm devices)
For eth0 device, I used command

mpirun.ch_p4 -np 2 -machinefile eth2
$AMBERHOME/exe/sander.MPI -O -i gbin -o md.out1 -c md12.x

The calculation was successed.

But when I switched to myrinet device with command

mpirun.ch_gm -np 2 -machinefile myri2
$AMBERHOME/exe/sander.MPI -O -i gbin -o md.out2 -c md12.x

I obtained error message as "Suspended (tty input)"
Then I tried either

mpirun.ch_gm -s -np 2 -machinefile myri2
$AMBERHOME/exe/sander.MPI -O -i gbin -o md.out2 -c md12.x

or

mpirun.ch_gm -np 2 -machinefile myri2
$AMBERHOME/exe/sander.MPI -O -i gbin -o md.out2 -c md12.x
< /dev/null

I obtained error as "Unit 6 Error on OPEN: md.out2" from both
commands.
As I know, this error message concerns overwrite output.
However, I am sure that I have added a flag "-O" (a letter O, not
zero). Any suggestion?

Best Regards,
Khatcharin

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