Lustre 1.6 Operations Manual

31.2.9 MX LND
MXLND supports a number of load-time parameters using Linux's module
parameter system. The following variables are available:
Variable
n_waitd
max_peers
cksum
ntx
credits
board
ep_id
polling
hosts
Description
Number of completion daemons.
Maximum number of peers that may connect.
Enables small message (< 4 KB) checksums if set to a non-zero
value.
Number of total tx message descriptors.
Number of concurrent sends to a single peer.
Index value of the Myrinet board (NIC).
MX endpoint ID.
Use zero (0) to block (wait). A value > 0 will poll that many times
before blocking.
IP-to-hostname resolution file.
Of the described variables, only hosts is required. It must be the absolute path to the
MXLND hosts file.
For example:
options kmxlnd hosts=/etc/hosts.mxlnd
The file format for the hosts file is:
IP HOST BOARD
EP_ID
The values must be space and/or tab separated where:
IP is a valid IPv4 address
HOST is the name returned by `hostname` on that machine
BOARD is the index of the Myricom NIC (0 for the first card, etc.)
EP_ID is the MX endpoint ID
31-20 Lustre 1.6 Operations Manual • September 2008