brlainfo
Displays host topology information.
Synopsis
brlainfo [-l] [host_name ...]brlainfo [-h | -V]
Description
The brlainfo command contacts the LSF topology adapter (RLA) on the specified host and presents topology information to the user. By default, displays information about all hosts that run the RLA.
Options
- -l
- Long format. Displays more host topology information.
- host_name ...
- Displays information only about the specified host.
- -h
- Prints command usage to stderr and exits.
- -V
- Prints LSF release version to stderr and exits.
Default output
Displays the following fields:
- HOSTNAME
- Name of the host that runs the RLA.
- CPUSET_OS
- RLA host operating system.
- NCPUS
- Total number of CPUs.
- FREECPUS
- Number of free CPUS.
- NNODES
- Number of nodes allocated.
- NCPU/NODE
- Number of CPUs per node.
- NSTATIC_CPUSETS
- Number of static cpusets allocated.
Long output (-l)
The -l option displays a long format listing with the following extra fields:
- FREE CPU LIST
- List of free CPUs in the
Usenet.
0-2 - NFREECPUS ON EACH NODE
- Number of free CPUs
on each node.
2/0,1/1 - STATIC CPUSETS
- List of static cpuset
names.
NO STATIC CPUSETS - CPU_RADIUS
-
2,3,3,3,3,3,3,3- 2 CPUs are available within radius 0
- 3 CPUs are available within radius 1, 2, 3, 4, 5, 6, and 7.
CPUs grouped within a smaller radius can be thought of as being closer together and have better communications performance.
Examples
brlainfo hostA hostB hostC
HOSTNAME CPUSET_OS NCPUS NFREECPUS NNODES NCPU/NODE NSTATIC_CPUSETS
hostA LINUX_4 2 2 1 2 0
hostB LINUX_4 4 4 2 2 0
hostC LINUX_4 4 3 2 2 0
brlainfo -l
HOST: hostC
CPUSET_OS NCPUS NFREECPUS NNODES NCPU/NODE NSTATIC_CPUSETS
LINUX_4 4 3 2 2 0
FREE CPU LIST: 0-2
NFREECPUS ON EACH NODE: 2/0,1/1
STATIC CPUSETS: NO STATIC CPUSETS
CPU_RADIUS: 2,3,3,3,3,3,3,3