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Re^2: Help to create procgrop file for parallel runs with FF on Ubuntu 10


Hi Alex,

thanks very much.  This did do the trick!  Up and running!


On Tue May 25 '10 10:12am, Alex Granovsky wrote

>the simplest way is to use MPICH (note not MPICH2, these two are very different things) version of Firefly.

>Assume you have installed Firefly in /home/gordon/firefly directory,
>and your input file is /home/gordon/test.inp

>Create the file with the name "procgrp" that contains the only string:

>local 1
>Assume it is also in /home/gordon directory

>Then, run Firefly as follows:

>/home/gordon/firefly/firefly -r -f -p -stdext -i /home/gordon/test.inp -o /home/gordon/test.out -ex /home/gordon/firefly -t /tmp/scratch/test -p4pg /home/gordon/procgrp &

>Basically, this will do the trick.

>And yes, read the documents you have mentioned for the explanation of command line options.

>On Mon May 24 '10 3:00pm, Gordon wrote
>>Dear forum followers,

>>I am a windows user whom has very recently switched to Ubuntu 10 (and knows little about LINUX/UNIX), and am struggling to get FF running parallel jobs on a single node with 2 CPUs (serial jobs are working).  What I have found on this forum indicates I need to download the MPICH package (done), install it (not sure how) and create a procgrop file (not done, not sure how) to tell FF I want to run a parallel job (i.e. -np 2).

>>The following links are typically supplied on this forum in order to proceed:
>and it has been mentioned several time one needs to create a "progrop" file with little further elaboration.

>>If anyone reading this has previously managed to install MPICH2 (the current release) AND created a procgrop file in LINUX to be able to run FF in parallel AND is willing to help someone who has essentially zero experience with UNIX/LINUX, please feel free to offer suggestions for getting started, web resources etc.  I am happy to slowly figure things out myself, but I have many other responsibilities, so any help in avoiding re-creating the wheel would be extremely appreciated, so I don't waste time I do not have.

>>I realise this may be so basic it doesn't deserve attention here, in which case feel free to contact me directly at my email address.

>>At the end of the day, I just need FF running in parallel, but am willing to learn how to make it happen.


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