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BESTNODE(M1) MOSIX Commands BESTNODE(M1)
NAME
BESTNODE - Select best node to run on
SYNOPSIS
bestnode [-u] [-n] [-G] [-w] [-m{mb}]
DESCRIPTION
Bestnode selects the best node to run a new job.
Bestnode normally prints the selected node's IP address. If the -u argu-
ment is used and the node has an associated MOSIX node number, bestnode
prints its MOSIX node number instead.
The selection is normally for the immediate sending of a job to the
selected node by means other than mosrun(1) (such as "rsh", "ssh", or
MPI). MOSIX is updated to assume that a new process will soon start on
the selected node: when calling bestnode for any other purpose (such as
information gathering), use the -n argument, to prevent misleading MOSIX
that a new process is about to be started.
The -G argument widens the node selection to the whole multi-cluster grid
- otherwise, only nodes within the local cluster are chosen (the local
partition, if the cluster is partitioned).
The -m{mb} argument narrows the selection to nodes that have at least mb
Megabytes of free memory.
When the -w argument is used, bestnode waits until an appropriate node is
found: otherwise, if no appropriate node is found, bestnode prints "0"
and exits.
SEE ALSO
mosrun(1), mosix(7).
MOSIX May 2006 MOSIX
Copyright © 1999-2008 Amnon Barak. All rights reserved.