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Multi-Vendor EDA Licensing under Windows 8

Daniel Payne

Daniel Payne

Moderator
I've got a contract to update a Verilog training class that uses both:



I'm using my MacBook Pro with virtualization software from Parallels that allows me to run Windows 8.

At first I tried to combine my license files into a single document and save it on the Mac filesystem, but was having reliability issues getting Synplify Pro to accept this combined license file, so in the end I went with two separate license files saved on the PC filesystem. Here's what my license environment variable was set to:

Code: 
LM_LICENSE_FILE      C:\Synopsys\license.lic; C:\MentorGraphics\license.txt

My ModelSim license was node locked, and when I startup Windows 8 this license is available immediately, however the Synopsys license is floating and it takes maybe 35 seconds after I've logged into Windows 8 before lmgrd.exe is running and serving up the Synopsys license.

Surprisingly there's not much documentation on how to get your multi-vendor EDA tools up and running under Windows 8. Each EDA vendor does a good job documenting only their own licensing setup. Maybe that's why we hear so many complaints about the cost of CAD support costs.
 
Last edited:
daniel_payne said:
Code: 
LM_LICENSE_FILE      C:\Synopsys\license.lic; C:\MentorGraphics\license.txt
Click to expand...

I think you can also use company specific environment variables; SNPSLMD_LICENSE_FILE and MGLS_LICENSE_FILE.
We do run our license servers on Linux servers over here though.
Also not all companies are happy to run floating license servers on a virtual machine; so best not to mention that.

greets,
Staf.
 
Staf,

Thanks for the insight. I did chat with tech support at Synopsys and when they found out I was on a virtual Windows 8 box they said, "We'll have to call you back tomorrow, when another expert can help you out...". I was trying to avoid using two license environment variables because it seemed like a single variable and single license file would be cleaner, oh well at least it's working reliably for me now.
 
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