AMBER Archive (2002)

Subject: Re: mpich, I/O, Master node, filesystem

From: David Case (case_at_scripps.edu)
Date: Thu Aug 08 2002 - 00:14:25 CDT


On Thu, Aug 08, 2002, Jianhui Wu wrote:
>
> A computer guy asked me
> whether the I/O is done by the master node (in a batch mode) or via
> the shell node (in an interactive mode).

The master node (node 0) does all I/O. The program is running in what
I think everyone would call "batch mode".

> Secondly, do MPICH
> requires a shared filesystem (instead of distributed filesystem)?

No, a shared filesystem is not required; the "slave" nodes never access
any filesystem (shared or otherwise.)

...dac

-- 

================================================================== David A. Case | e-mail: case_at_scripps.edu Dept. of Molecular Biology, TPC15 | fax: +1-858-784-8896 The Scripps Research Institute | phone: +1-858-784-9768 10550 N. Torrey Pines Rd. | home page: La Jolla CA 92037 USA | http://www.scripps.edu/case ==================================================================