Why I don't have
access to /afs/ece/usr/mems directory? Check the following:
How do I run Cadence,
Coventor, Abaqus... etc? See corresponding help file at: http://www.ece.cmu.edu/~mems/intranet/ Most of the CAD software runs on Windows PCs, LINUX
or Sun Solaris machines. There are several Linux Xeon PCs in HH1107,
and some older Sun Blade 100s remotely accessible from the cluster.
MEMS Lab graduate students also have access to some Sun (elvis, belushi)
and Linux (boole) machines in the
CSSI
compute cluster or on a Linux machine (mems.ece.cmu.edu).
What is NODAS ? How to use NODAS ? NODAS
stands for Nodal Design of Actuators and Sensors, and enables simulation of
MEMS in conjunction with electronic circuits. The major funcationality includes:
We currently support the following technologies:
We also support a special version of AMS technology developed by MEMSCAP.
This version contains cross section tools and 3D visualizer. To start
Cadence, run xmems_cds. Please
NOTE: the technologies are NOT compatible with each other, and you can NOT
run them in the same directory. For example, your should start your
ams_cds cadence in a seperate directory with where you start your hp_cds
cadence. Otherwise, it may screw up your directory structure. For
detailed instructions for mumps, hp and ams, please see http://www.ece.cmu.edu/~mems/cadence
Why do I get
Error "..." defined differently elsewhere
messages when I use NODAS ?
This started to appear when we moved to a Cadence 5.0
(as they have changed their default discipline.h). NODAS
was upgraded for all the technologies in Spring '05. If you
get this error it means you have your own copy of older NODAS
libraries. Please verify that your library is different
from the official libraries that appear when you start xxx_cds
in a new directory. If they are identical, please delete your
own personal copy of the NODAS libraries When I start jazz_cds,
tsmc_cds, why there are a few warnings in Cadence information
window? This is normal. We are trying to remove as many
unnecessary warnings as possible to avoid confusion. But in most cases,
these warnings should not give you trouble in using Cadence. How do I see the past
design archives? We currently support several technologies (see NODAS question above) When you run xxx_cds (where xxx is one of the supported technologies) in a newly created directory, the
past design archives will be automatically included your cds.lib. For ams_cds/xmems_cds, things are slightly different because we had submitted an entire engineering wafer run, and not single chip runs to AMS. We
had 4 ams submissions. If you start Cadence in a new directory by
using xmems_cds/ams_cds, the fourth submission designs will be included by default. If
you want to see the previous three runs, you have to edit cds.lib. For example, if you want to see asimps2 submission,
change this line in your cds.lib: Similarly, for asimps1 submission, change the line to: Then, quit and restart your cadence. Note: You can only include one submission archive at a
time. These submissions have library name conflicts and will not work
normally if you put any two of the INCLUDE lines in one cds.lib file.
I am doing DRC/simulation on a large design, and it takes too long.
How do I make it go faster? There are two issues: storage
speed and compute speed.
Frequently Asked Questions
klog <username>
then, enter your password.
pts mem mems:group | grep <your ece username>
if you are not on mems:group, contact your advisor to
give you read permission.
INCLUDE /afs/ece/usr/mems/layout/cadence/ams_archive/asimps3/cds.lib
to:
INCLUDE /afs/ece/usr/mems/layout/cadence/ams_archive/asimps2/cds.lib
if you want asimps2 submission.
INCLUDE /afs/ece/usr/mems/layout/cadence/ams_archive/asimps1/cds.lib
and for sensors1 submission, change the line to:
INCLUDE /afs/ece/usr/mems/layout/cadence/ams_archive/sensors1/cds.lib