CCL: Question

[David Hall <drhall]![bu.edu>]

 My favorite solution to this is to use gnu parallel

https://savannah.gnu.org/projects/parallel/" target="_blank">https://savannah.gnu.org/projects/parallel/

parallel <cmds.sh

will execute the commands in the file in parallel.

Assuming the commands are similar, you can see the man page for ways to execute this without creating a file of commands

-David

On Mon, Jul 9, 2012 at 9:51 AM, John McKelvey jmmckel:+:gmail.com <owner-chemistry+/-ccl.net> wrote:

Sent to CCL by: John McKelvey [jmmckel{=}gmail.com]
Hello...

I'm trying to get 4 processes to run simultaneously on a 4 processor
box and wait until they are all finished before proceeding.  Don't
have "fork" , "wait" or "sleep" available in free ftn compiler...

I think I can do a "call system(cmd1&cmd2&cmd3&cmd4)" to get the 4
processes running at the same time, but I then need to wait till all 4
are finished before proceeding to the next step.  I could do a "grep
*.out > wclist" and check the value of wclist in an "infinite loop"
until satisfied, i.e. wclist=4, but would this eat a lot of cycles?

Would be happy to check out forums for this...


Many thanks..

John



--
John McKelvey
10819 Middleford Pl
Ft Wayne, IN 46818
260-489-2160
jmmckel ~ gmail.com



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