LSF Version 7.3 - Administering Platform LSF

How LSF Permanent Licensing Works
154 Administering Platform LSF
Example permanent license file
The following is an example of a permanent license file.
The license server daemon is configured to run on
hosta, using TCP port 1700. It
allows 10 single-processor hosts to run Platform LSF 7 and Platform LSF Make,
with no expiry date.
How LSF Permanent Licensing Works
This section is intended to give you a better understanding of how LSF licensing
works in a production environment with a permanent license. It does not contain
information required to install your license.
Platform LSF uses the FLEXlm license management product from GLOBEtrotter
Software to control its licenses. LSF licenses are controlled centrally through the
LSF master LIM.
FLEXlm license server
Permanent LSF licenses are managed by the FLEXlm license server daemon
(
lmgrd). The FLEXlm license server daemon runs on a license server host you
choose (for failover purposes, the daemon can run on multiple hosts).
The
lmgrd daemon starts the LSF vendor license daemon lsf_ld, which
periodically keeps track of how many LSF licenses are checked out and who has
them. Only one
lsf_ld can run on a host. If lsf_ld stops running, lmgrd
immediately stops serving LSF licenses to all LSF hosts.
The LIM on the LSF master hosts contacts the license server host to get the
necessary LSF licenses. It then propagates licenses to all LSF server hosts and client
hosts. Multiple LSF clusters can get licenses from the same license server host.
The TIMEOUT ALL parameter in the FLEXlm license option file changes timeout
values, including how quickly the master host releases licenses during failover. LSF
supports a minimum timeout value of 15 minutes. For information about how to
configure the TIMEOUT ALL parameter, see the FLEXlm documentation.