BFSTATE(1) LAM COMMANDS BFSTATE(1)
bfstate - Report status of LAM buffers.
bfstate [-ghlp] [-B <#msgs>] <node(s)>
-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.
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 sys-
tem, 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.
Display the status of all network message buffers on nodes 12
If no buffered messages are found, only the title line is displayed and
information from the -l option, if present.
LAM 7.1.1 September, 2004 BFSTATE(1)
Man(1) output converted with