Cadence® system design and verification solutions, integrated under our Verification 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.
More Support Log In
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 technology. 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.
Get email delivery of the Cadence blog featured here
Today I'd like to dive into one of the topics I mentioned in my blog in August -- measuring chip power. This seems to be one of the questions I get from many people. How can a design team effectively measure power all throughout the design flow, with the key phrase being "throughout the entire flow"?
Power measurement requirements have evolved over the years from rough estimations to the need to have more precise power calculations. Because power specifications have become stricter, most design teams today can't treat power as a luxury, and just do the best they can towards the end of the flow. Power consumption today has to be gauged up front, worked towards during the design flow, and measured accurately at the end.
Still, there are many challenges to tackle. One of the main challenges is the lack of finalized design data early on in the flow. Let's look at the availability of quality design data throughout the flow:
As you can see, we do have quite a bit of information available at the project planning stage. However, most of this information is preliminary information. Can we get an accurate measurement on what the chip's final power consumption is going to be at this stage? Probably not. Can we get a good estimate? Absolutely! However, if anything changes in the project specs, it's important to propagate that to the estimate.
Next up is RTL and logic synthesis. In my opinion, the biggest "incomplete data" factor at this stage is the lack of physical optimization logic, and the clock network. For high random logic designs, the clock tree can consume up to 30% of total chip power, so this is actually a pretty big unknown at this point. Then, we have the RC difference between wireload and actual wires. All these factors can contribute to a significant difference, which is why synthesis-stage power calculations should be treated as a refined estimate at best. However, at this stage, you should already have an almost-finalized activity vector set -- at least one for average usage and one for peak power usage.
At design implementation we pretty much have most, if not all, of the design information needed. Indeed, at late stage design implementation (post-route), your power measurements should be spot-on with signoff, provided you are using the same activity vectors. Still, there are a few things that might derail your power measurement efforts. The most obvious two are: (1) the consistency of power models being used between implementation and signoff, especially for large macros, and (2) the consistency of the power calculation engine between implementation and signoff.
So, I've thrown out the main challenges of getting good power measurement at different stages of the design flow. Although these challenges may seem overwhelming at times, there are ways of overcoming or minimizing the risks associated with each of these challenges. Stay tuned for my next blog to find out what they are!
How about correlating signoff power calculation vs. actual Silicon power consumption? What are the factors causing miscorrelation, and what are techniques to handle them?
In Case of RTL compiler we have option called report power,if we give that command the tool generates Leackage,Net,Switching power so the question is In what condition tool generates that report
1. By Taking all the input conditions
2. Or Specific conditions
Can any one help this
Thank you for your patience.