08-27-2012
Thank you again for your response.
Our backbone is 1GB as far as I know, but would have to check. The bigger issue is with nodes on the WAN, we should be lucky to sustain 1MB on those lines. That means we should consider compression/decompression for the results.
I will have our administrator look into setting up NFSes on the available nodes.
Our application stack is fairly standard: FreeBSD 8.x with a C++/mysql/python application. This should eliminate the diversity problem, but that doesn't mean we will not run into hardware issues. We may even have to assign the jobs greedily to the node with the fastest CPU first.
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LEARN ABOUT DEBIAN
pbsnodes
pbsnodes(8B) PBS pbsnodes(8B)
NAME
pbsnodes - pbs node manipulation
SYNOPSIS
pbsnodes [-{a|x}] [-q] [-s server] [node|:property]
pbsnodes -l [-q] [-s server] [state] [nodename|:property ...]
pbsnodes [-{c|d|o|r}] [-q] [-s server] [-n] [-N "note"] [node|:property]
DESCRIPTION
The pbsnodes command is used to mark nodes down, free or offline. It can also be used to list nodes and their state. Node information is
obtained by sending a request to the PBS job server. Sets of nodes can be operated on at once by specifying a node property prefixed by a
colon.
Nodes do not exist in a single state, but actually have a set of states. For example, a node can be simultaneously "busy" and "offline".
The "free" state is the absence of all other states and so is never combined with other states.
In order to execute pbsnodes with other than the -a or -l options, the user must have PBS Manager or Operator privilege.
OPTIONS
-a All attributes of a node or all nodes are listed. This is the default if no flag is given.
-x Same as -a, but the output has an XML-like format.
-c Clear OFFLINE from listed nodes.
-d Print MOM diagnosis on the listed nodes. Not yet implemented. Use momctl instead.
-o Add the OFFLINE state. This is different from being marked DOWN. OFFLINE prevents new jobs from running on the specified
nodes. This gives the administrator a tool to hold a node out of service without changing anything else. The OFFLINE state
will never be set or cleared automatically by pbs_server; it is purely for the manager or operator.
-p Purge the node record from pbs_server. Not yet implemented.
-r Reset the listed nodes by clearing OFFLINE and adding DOWN state. pbs_server will ping the node and, if they communicate
correctly, free the node.
-l List node names and their state. If no state is specified, only nodes in the DOWN, OFFLINE, or UNKNOWN states are listed.
Specifying a state string acts as an output filter. Valid state strings are "free", "offline", "down", "reserve", "job-
exclusive", "job-sharing", "busy", "time-shared", or "state-unknown".
-N Specify a "note" attribute. This allows an administrator to add an arbitrary annotation to the listed nodes. To clear a
note, use -N "" or -N n.
-n Show the "note" attribute for nodes that are DOWN, OFFLINE, or UNKNOWN. This option requires -l.
-q Supress all error messages.
-s Specify the PBS server's hostname or IP address.
SEE ALSO
pbs_server(8B) and the PBS External Reference Specification
Local pbsnodes(8B)