Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
I have been struggling with ASSURA LVS, The DRC runs fine however when LVS is run, the following error appears in the error log:
Error: failed to initialize OpenAccess because:
Requested minor API version '202' which is supported by OpenAccess build '22.41.010' is newer than the minor API version '201' of the shared library of OpenAccess build '22.41.004'
I tried searching for the Open Access version of 22.41.010 and had no luck. I have tried to search the cadence forum and support is under temporary unavailability.
I remember doing one thing before running the LVS but I doubt the reason might have been that. Since Open Acess allows objects and doesnt have typical via definitions as in cdb such as "M1_PSUB" or "M1_NWELL", I went to the Constraints manager and allowed all Vias as Valid Vias in all tech file values since I needed some of those for my basic inverter layout which were not available in default standiard vias. Thereafter after completing the design got no DRC but got prompted for this error as LVS failed to run.
I am also attaching the text file of the error log.
My guess is that you have the $OA_HOME UNIX Environment variable set, pointing to an older installation of OpenAccess. You should really have each tool use the OpenAccess version that it is shipped with.
Looking at the versions mentioned in the log files, they both appear to use 22.41.010 - so I'm not sure what you can have this set to.
I would recommend doing:
unsetenv OA_HOME (if using csh)
unset OA_HOME (if using ksh or bash)
before starting Assura (or Virtuoso).
There's also a possibility that your installations were configured incorrectly - so maybe you can check the "share/oa" link in $ASSURAHOME and $CDSHOME (or wherever "cds_root virtuoso" points) to see that it's pointing to:
UNIX_183> ls -l $ASSURAHOME/share/oa
lrwxrwxrwx 1 ccops ccusers 16 Nov 16 2011 /apps/ASSURA41/615/04.12.011/share/oa -> ../oa_v22.41.010/
UNIX_184> ls -l $CDSHOME/share/oa
lrwxrwxrwx 1 ccops ccusers 16 Jul 29 2011 /apps/IC615/06.15.505/share/oa -> ../oa_v22.41.010/
UNIX_185> assura -W
UNIX_186> virtuoso -W