LM_LICENSE_FILE or MGLS_LICENSE_FILE for RTL simulation

When you install the tools under Linux, you need to specify the License file location . This is done by specifying the following variables:

LM_LICENSE_FILE --> path to license file for all tools which use FLEXLM licensing

MGLS_LICENSE_FILE --> specific license variable for Mentor Graphics tools

You will need to edit the .bashrc or .cshrc file in your login and add the following variables there

export LM_LICENSE_FILE = <path to your license.dat file>

export MGLS_LICENSE_FILE = <path to your license.dat file>

export PATH = $PATH:<path to modelsim executable>:<path to quartus tool executable>

Save and close the .bashrc/.cshrc file. Start a new terminal and you can invoke the tools .