Installation of MPI in a cluster of SMPs

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04-21-2010

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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!

Sonia_

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LEARN ABOUT DEBIAN

mkfs.exfat

MKEXFATFS(8)						      System Manager's Manual						      MKEXFATFS(8)

NAME

       mkexfatfs - create an exFAT file system

SYNOPSIS

       mkexfatfs [ -i volume-id ] [ -n volume-name ] [ -p partition-first-sector ] [ -s sectors-per-cluster ] [ -v ] device

DESCRIPTION

       mkexfatfs creates an exFAT file system on a block device.  device is a special file corresponding to the device.

OPTIONS

       Command line options available:

       -i volume-id
	      A 32-bit hexadecimal number. By default a value based on current time is set.

       -n volume-name
	      Volume name (label), up to 15 characters. By default no label is set.

       -p partition-first-sector
	      First  sector  of  the partition starting from the beginning of the whole disk.  exFAT super block has a field for this value but in
	      fact it's optional and does not affect anything. Default is 0.

       -s sectors-per-cluster
	      Number of physical sectors per cluster (cluster is an allocation unit in exFAT). Must be a power of 2, i.e. 1, 2, 4, 8, etc. Cluster
	      size  can  not exceed 32 MB. Default cluster sizes are: 4 KB if volume size is less than 256 MB, 32 KB if volume size is from 256 MB
	      to 32 GB, 128 KB if volume size is 32 GB or larger.

       -v     Print version and copyright.

EXIT CODES

       Zero is returned on successful creation. Any other code means an error.

AUTHOR

       Andrew Nayenko

SEE ALSO

       mkfs(8)

								   January 2011 						      MKEXFATFS(8)

High Performance Computing