sshloginfile in GNU parallel

[yacob sen]

Dear All,

I am trying to implement gnu parallel on a cluster with several nodes and each node has up to 12 cores.

Here "file_name" name contains two parameters that is fed to my script "program.sh". My script needs two parameters to run. 

While "login_server_names" contains the address to each of the nodes in the cluster.

Example of what my "file_name" comprise:

1     1

1     2

1     3

..........

1   12

Example of what (my_login_server_name) file comprise.  For a single node case, my "login_server_name" will have a similar address:

node_1_server_address

node_1_server_address

-----

node_1_server_address

or equivalently 

12/node_1_server_address

Here is my understanding of the gnu parallel implementations on a single node:

cat  $file_name | parallel -u -j 12  --sshloginfile  $login_server_name --colsep '  '   program.sh {1} {2}

My idea is for the above command is to distribute each of my jobs to each of the cores of a single node. If my implementation is correct, this is what I expect the gnu  parallel to do:

At core 1 of node 1:

"program.sh 1    1"  ought to run

At core 2 of node 1:

"program.sh  1     2"  ought to run

------------------------

so on

--------------------------

At core 12 of node 1:

"program.sh  1     12"  ought to run

Please confirm 

All the best,

Yacob

PS. For several nodes, the above command will also work accordingly.