Answers Database

Workstation Licensing: Using multiple license files at once


Record #507

Problem Title:
Workstation Licensing: Using multiple license files at once


Problem Description:



Solution 1:




PROGRAM: Xilinx License Manager

VERSION: 5.0, 5.1, 5.2.x

PLATFORM: All Workstation

SHORT DESCRIPTION:

LM_LICENSE_FILE can now point to more than one license file.

LONG DESCRIPTION:

PROBLEM:

Users may have two separate license files, in two separate directories;
how can XLM 'see' both of them?

SOLUTION:

For customers who have Xilinx feature ONLY in their Xilinx
license, it is better to NOT use this feature, and to just
be sure that the license in $XACT/license/license.dat is
correct.

For customers who have licenses from Xilinx and Cadence, for
example, it is necessary to set up an environment such that
the license manager will look at the total pool of licenses,
rather than just one or the other of the files.

This is done by setting the LM_LICENSE_FILE variable to point
to both licenses, as:

  setenv LM_LICENSE_FILE /xact/license/license.dat:/home/davem/license/license.d
at

 or

  setenv LM_LICENSE_FILE 2100@zippo:2100@pog

The first method tells the programs to look at the named files; the
second tells what sockets on what servers to connect to.  In either case,
the user MUST set the environment variable XLM_ENABLE_LM_LICENSE_FILE:

  setenv XLM_ENABLE_LM_LICENSE_FILE

Then when ppr starts, it connects to the first server in the list,
asking for a PPR license; if that fails, it connects to the next, and so on,
if there were more than two.

This capability is NEW in XACT 5.0/5.1/5.2.x; in the previous releases,
we explicitly disabled this functionality.




End of Record #507