editor's blog
Subscribe Now

Sorting Through the Rubble

Roughly a year ago we talked about Vennsa’s OnPoint tool for identifying what went wrong during verification when something goes wrong. I got an update at DAC recently, where they talked about two concepts they’ve brought to their technology in order to make it easier to decide what to fix when there’s a problem.

The first is that of triage, which automatically tries to combine different failures if they appear to have the same root cause. Prior to this, you would manually ask the tool for possible root causes for each failure; now this evaluation and “binning” (more or less) occurs automatically.

The thing is, any given failure may have more than one candidate root cause, and there may be several failures, some of whose candidate root causes overlap. Understanding this picture and the conclusions the tool draws from it falls into the second new concept, which they call causality analysis. This involves a more precise understanding of all root cause candidates and the trajectories of the possible fixes – that is, the knock-on implications of each fix.

In particular, where a given fix candidate is a candidate for several failures, that fix will get a higher ranking than if it only solves a single failure.

In evaluating which fixes to suggest and how to rank them, it also takes into account the complete set of facts regarding which checkers may have blessed or frowned on various parts of the simulation; any available information regarding the desired state of the system at the failed point; whether a given fix would break something else; and whether it would be better to apply a fix further upstream or downstream in the logic.

One key goal of the improvements is to make it easier to figure out who owns a fix. If a set of failures gets grouped during triage, it’s more evident that there’s an owner for the entire group.

More info in their release

Leave a Reply

featured blogs
May 16, 2022
By Sherry Hess Recently I posted a blog on LinkedIn called " High Tech Everything ." This caught the attention of my friends at Microwave Journal. As such, their lead editor, Pat Hindle,... ...
May 12, 2022
Our PCIe 5.0 IP solutions, including digital controllers and PHYs, have passed PCI-SIG 5.0 compliance testing, becoming the first on the 5.0 integrators list. The post Synopsys IP Passes PCIe 5.0 Compliance and Makes Integrators List appeared first on From Silicon To Softwar...
May 12, 2022
By Shelly Stalnaker Every year, the editors of Elektronik in Germany compile a list of the most interesting and innovative… ...
Apr 29, 2022
What do you do if someone starts waving furiously at you, seemingly delighted to see you, but you fear they are being overenthusiastic?...

featured video

Intel® Agilex™ M-Series with HBM2e Technology

Sponsored by Intel

Intel expands the Intel® Agilex™ FPGA product offering with M-Series devices equipped with high fabric densities, in-package HBM2e memory, and DDR5 interfaces for high-memory bandwidth applications.

Learn more about the Intel® Agilex™ M-Series

featured paper

Build More Cost-Effective and More Efficient 5G Radios with Intel® Agilex™ FPGAs

Sponsored by Intel

Learn how Intel® Agilex™ FPGAs ease development of 5G applications by tackling constantly evolving requirements with flexible, highest performance-per-watt fabric, while providing a path to production and scale with Intel® eASIC™ and full ASIC implementations.

Click to read more

featured chalk talk

IsoMOV

Sponsored by Mouser Electronics and Bourns

Today, your circuit protection device needs to be versatile, handling a wide range of conditions with long-life low capacitance, low leakage, and state-of-the-art energy handling density. In this episode of Chalk Talk, Amelia Dalton chats with Paul Smith from Bourns about IsoMOV - a new integrated circuit protection that brings together the most important circuit protection capabilities in one efficient package.

Click here for more information about Bourns IsoMOV™ Series Hybrid Protection Component