Cadence Remote Access

I"m looking for a company that offers short term Cadence Virtuoso
Layout Licence leasing. I have heard they exist, but have been unable
to locate them. If anyone had heard of these types of companies could
you please let me know. Or if anyone has any good suggeston for
working remotely using Cadence for Layout, please let me know (I've
used Exceed on Demand and its to slow) . I have heard of people
Loading the Cadence software on their home computer, then pulling the
Cadence Licence over the network, any thoughts?

 

That's how I do it - along with pulling the design object and all libraries
home as well. That way only the license request/response goes over the long
wire.

Don't know about license leasing companies. Sorry...

/daytripper

 

Not a lawyer, or even a company spokesman, just relating what I have
heard in discussions about this kind of thing:

Leasing a license is specifically forbidden by the license agreement.
Running on a machine not at the company site, is also a violation,
unless the remote machine is within the specified distance of the
license host machine.

The first makes sense. After all, Cadence makes money by selling people
licenses. Myself, I find the second odd, but cannot remember the reason
I heard given for it.

Myself, I would call Cadence Sales and ask. There may be a license model
that fits your need.

 

I use Nomachine's NX. It works great, especially for layout (vs VNC).

 

I know of at least five different service bureaus - including two of the
largest in the New England area - that support home-based employees using the
method I described. They pay (dearly) for the licenses, and I'd be surprised
if their Cadence reps are unaware of such practices, and that Cadence actually
cares where their customers seat their employees, as long as they're using
legitimate, paid-for licenses.

That doesn't address the assertion, of course.
Anything is possible - including the irrational...

/daytripper (and if you need more proof of *that*: GWB was re-elected ;-)

 

I was going to add, some fabless companies rent spare machines (datacenter)
from
hosting companies. Obviously, the physical CPUs never leave the
hosting-firm's (remote)
site, but rather the customer's selected O/S and apps are loaded onto the
rented CPUs,
and billed on machine-time (and bandwidth.)

Regardless, the ASIC-companies which operate VPNs for their employees,
generally
use a commercial metaware-server (Tarantella, Citrix, etc.) so all the
EDA-applications
run inside the company, but displayed on the remote-employee's (VPN) client.
This
arrangement sidesteps and legal complications. (Not ***cough*** Marvell,
though, they
don't believe in VPN, period...@!!#$!)

Once I tried to run Cadence signalscan over an ssh-tunnel -- WOW, was that
slow!
(over 4 minutes for the intro-dialog to come up, over a 768Kbps DSL-link!)

VNC-session (hosted by the Linux server which was running the EDA-tools)
was slightly better. gotomypc was actually usable (though still sluggish),
though that's
a Windows remote-desktop app (so I had my office Win2000 PC left running
24/7.)

 

I also work in Cadence using NoMachine NX and highly recommend it.
It's at least 2x better than VNC, and 100x better than X11 over SSH.
The free client/server package works great for up to 2 connections per
server. There's a GNU implementation called freenx but I haven't
tried it yet.