Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification 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 a group of PVT simulation data (~50 sets) and have been unsuccesful in creating a plot with ViVA. This problem can be attributed to the fact that I have limited memory installed on my PC and my attempts had resulted in memory allocation error.
At the moment, I have an ocean script that utilizes for-loop to go through each simulation data and plot the desired waveforms. What I noticed during the script execuation is that the child processes, java and virtuoso, will consume ever increasing memory with each plot command until all available memory are used up and the program will exit with the memory allocation error.
Is it possible get java and virtuoso to release up the memory before OCEAN opens the next set of simulation data? What I am thinking is something like this: Open results -> plot results -> freeze graphc -> clear memory -> open next results and etc?
Also, is it also possible to enable Fast Viewing Support in OCEAN with the hope that this step will result in lower memory requirement?
I have IC220.127.116.110.12
Your best bet would be to move to IC615, because that has much improved memory management for waveform data (as well as the new graph implementation). You could run in 64 bit mode to help though in IC614 (run "virtuoso -64").
In reply to Andrew Beckett:
I would try moving to IC615 to see if that version will help to alleviate the memory management.
Is there a way to make sure that plotting with fastview is enable in OCEAN? I did envGetVal("spectre.outputs" "fastViewOption") and the system returned "t", however, I still find the plotting to be very slow.Thanks!
In reply to slim5:
First of all, the fastViewOption will only have an effect if RTSF output is turned on for the simulation (and that will only do anything if the output format is psfbin or psfxl). Secondly, it only helps for signals directly plotted in the waveform tool, and if you build a signal and plot it using plot(), you will most likely not get the speed benefit. That's because it has to load in the entire waveform, and the optimisation is lost.
psfxl output format should help significantly in terms of data load time, so use that if you can (this is the default from IC615 ISR4 onwards).
And IC615 will help in terms of load and draw performance anyway because in IC614 the graph is a separate (Java) process, and so the data is loaded into the ocean/virtuoso process, and then may be sent across to the java process using IPC; in IC615 it is a single process using Qt graphics, and so there's no IPC needed. The graphics performance should (in general) be better.
If after doing this you still have performance issues, please contact customer support - this is something that has had a lot of focus on, especially in IC615.