Platform LSF Reference Version 6.2

hosts
Platform LSF Reference
305
For example, some systems map internal compute nodes to single LSF host names. A
host file might contains 64 lines, each specifying an LSF host name and 32 node names
that correspond to each LSF host:
...
177.16.1.1 atlasD0 atlas0 atlas1 atlas2 atlas3 atlas4 ... atlas31
177.16.1.2 atlasD1 atlas32 atlas33 atlas34 atlas35 atlas36 ... atlas63
...
In the new format, you still map the nodes to the LSF hosts, so the number of lines
remains the same, but the format is simplified because you only have to specify ranges
for the nodes, not each node individually as an alias:
...
177.16.1.1 atlasD0 atlas[0-31]
177.16.1.2 atlasD1 atlas[32-63]
...
Example hosts file
192.168.1.1 hostA hostB
192.168.2.2 hostA hostC host-C
In this example, hostA has 2 IP addresses and 3 aliases. The alias hostB specifies the
first address, and the aliases
hostC and host-C specify the second address. LSF uses
the official host name,
hostA, to identify that both IP addresses belong to the same
host.