Installation of MPI in a cluster of SMPs

 
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Special Forums UNIX and Linux Applications High Performance Computing Installation of MPI in a cluster of SMPs
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Old 04-21-2010
Installation of MPI in a cluster of SMPs

Hi,

I've installed mpich2 v. 1.2.1p1 on a cluster of dual-processors with the default options (in previous versions I used 'ssm' device, but now I use 'nemesis').

I'd like that every time I execute a job (e.g. with 2 MPI-processes), each job's process be dispatched on a different machine (until to complete the maximum number of machines) and not on a same machine, viz :

Job A with 2 process:

Machine 1:
CPU0 Empty
CPU1 Used
Machine 2:
CPU0 Empty
CPU1 Used

but now it is scheduled as

Machine 1:
CPU0 Used
CPU1 Used
Machine 2:
CPU0 Empty
CPU1 Empty

Regards!Smilie
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4S-BACKEND_SETUP(1J)						      4store						      4S-BACKEND_SETUP(1J)

NAME
4s-backend-setup -- Create a new 4store KB SYNOPSIS
4s-backend-setup kbname [--node node-number] [--cluster cluster-size] [--segments segment-count] kb-name --node Number of this node in the cluster, values range from 0 to cluster-size - 1. The default is 0. --cluster The number of nodes in the cluster. The default is 1. --segments The number of segments in the cluster. The default is 2. We recommend one for each CPU core in the cluster as a good starting point. Higher numbers tend to consume more resources, but may result in increased performance. NOTES
Once crated with 4s-backend-setup KBs should be started with 4s-backend(1) SEE ALSO
4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1) EXAMPLES
$ 4s-backend-setup --node 0 --cluster 1 --segments 4 demo Creates the indexes for a single-machine KB with four segments, named "demo". 4store May 31, 2019 4store