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bfstate
Langue: en
Version: 179724 (CentOS - 06/07/09)
Section: 1 (Commandes utilisateur)
NAME
bfstate - Report status of LAM buffers.SYNTAX
bfstate [-ghlp] [-B <#msgs>] <node(s)>OPTIONS
- -g
- Include information on system messages.
- -h
- Print the command help menu.
- -l
- Print buffer levels and limits.
- -p
- Display individual packet information.
- -B <#msgs>
- Limit the number of messages reported.
DESCRIPTION
Most MPI users will probably not need to use the bfstate command; see mpimsg(1). This command is only installed if LAM/MPI was configured with the --with-trillium switch.The bfstate command displays information on LAM network message buffers on any node in the multicomputer. For each message, bfstate outputs the following information:
- NODE
- node containing the message
- DEST
- destination node of the message
- EVENT
- message event (see nsend(2))
- TYPE
- message type
- LENGTH
- message length in bytes
The -l option prints the following summary on each node's buffer system, after all messages for that node have been displayed.
- -
- maximum size of the internal buffer pool
- -
- amount of space currently used in the pool.
Individual message buffers hold network message packets, which may be only part of a complete user message. Normally, bfstate summarizes packets into complete messages. If all packets for a message are not on the same node, no information is displayed. The -p option disables this behaviour and one line on information is displayed for each packet. The -B option changes the maximum number of packet buffers acquired (and hence displayable) from the node.
EXAMPLES
- bfstate n12-14
- Display the status of all network message buffers on nodes 12 through 14.
DIAGNOSTICS
If no buffered messages are found, only the title line is displayed and information from the -l option, if present.SEE ALSO
bfctl(1), mpimsg(1)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre