# Hspice

## Environment

Set the environment variable META_QUEUE to 1 to activate vendor queueing. Set the environment variable META_QUEUE_TIME to limit how long to retry to acquire a license.

The variable LM_LICENSE_FILE also needs to be set in the environments, although its value will be overridden if you use Altair Accelerator with the wrapper ```vw vwrap```.

For example, if the environment used to run hspice is called HSPICE, add the following lines:
``````# Add this line to the HSPICE.start.tcl file
setenv META_QUEUE 1
``````# Fragment of ..../environments/HSPICE.start.csh
``````% ves HSPICE