Cary Chin, Director of Technical Marketing at Synopsys, has an intriguing take on how to approach verification now that the mandate for design project managers is to meet the low power requirement of the target end-product.   Chin says that if we look at verification in terms of fine and broad “granularity,” users will meet their verification goals with a lot less angst and anguish.    However, at first glance,  I had no idea what Chin was talking about…which is why we asked him to join us and talk about this idea.

Ed: Cary,  you’ve been recently talking about granularity in verification, especially in terms of low power.  What does this all mean?  

Cary:  When I think of granularity in low power design, I’m thinking about the size of the “chunks” that we manipulate to improve the energy efficiency (or “low power performance”) of a design.  For example, in most of today’s low power methodologies, large functional blocks are the boundaries we work within – we can shut down these blocks or manipulate the voltage to save energy when peak performance isn’t required.  This boundary level isn’t just a matter of convenience; our tools and methodologies for both implementation and verification can only deal with certain levels of complexity, so we are confined in many dimensions in how we can pursue finer granularity.

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