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 Decoding Formal

Posts Tagged ‘formal analysis’

Another Reason to Stay an Extra Day in Austin

Friday, June 3rd, 2016

If you are attending the Design Automation Conference (DAC) in Austin, Texas, June 5-9, and need a good reason to stay an extra day, look no further. Oski Technology is offering a one-day primer on advanced formal verification techniques at the DAC Decoding Formal one-day training, “Achieving Formal Sign-off”, on Thursday, June 9, from 10 a.m. until 5 p.m. at the Hilton Hotel, Austin. 
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Achieving Formal Sign-off: Key Learnings for Trainees and Experts

Monday, May 2nd, 2016

Formal sign-off is possible with today’s technology and methodology. But to get to formal sign-off takes an understanding of what is possible with formal verification, and an immersion in ongoing practice with formal methods and techniques. Moreover, early experiences with formal can determine later success with formal verification and sign-off. Even with a deep knowledge of a formal verification tool and extensive training from the tool vendor, exponential formal proof complexity often gets in the way of exhaustive coverage. Often what is needed is training in formal verification methodology and formal test planning that includes an exhaustive list of end-to-end checkers, as well as the mastering of formal techniques that help overcome complexity. (more…)

Recap of the 2016 Oski Formal Puzzler – “Chessboard Challenge” (+ Video)

Thursday, March 24th, 2016

In December 2015, Oski challenged formal users to build the fastest testbench to solve our Oski Formal Puzzler – the Chessboard ChallengeBerkeley Math Circle Monthly Contest 8, 2011, proposed and designed by Evan O’Dorney, three-time Putnam Fellow.  Jesse Bingham from Intel submitted the winning entry, as was announced during a presentation at the recent meeting of the Decoding Formal Club in Santa Clara, CA on February 29, 2016. This was an opportunity to promote the adoption of formal verification across the semiconductor industry, and share formal techniques by showing how they might be used to solve a fun formal puzzle. (more…)

Happy Birthday, Decoding Formal!

Thursday, September 24th, 2015

On the radio yesterday, we heard that the song “Happy Birthday To You”, one of the most widely sung tunes in the world, was ruled by federal judge George H. King to finally be in the public domain!

This welcome news seems to come at the right time, as Oski Technology plans to celebrate the second anniversary of the Decoding Formal Club at our quarterly meeting on October 21 at Computer History Museum, in Mountain View.

Since it was founded in October 2013, the Decoding Formal Club has drawn the attention of engineers, designers and verification managers. In a relatively short time we have covered much ground, and become a forum where formal knowledge and experience can be shared among the growing community of formal enthusiasts. In turn, Oski’s featured presentations have covered many aspects of formal sign-off methodology: Bounded Proof, Abstraction Models, Formal Test Planning, End-to-End Checkers and Constraint Management.

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The Impact of Great Teachers

Friday, May 1st, 2015

My daughter has been learning violin for the last 5 years with a wonderful Suzuki teacher. She emphasizes proper posture, beautiful tone and a good work ethic. This has built a solid foundation for my daughter to venture into learning other instruments. Last fall my daughter started playing flute for her school band, and viola at Young String Ensemble, the youngest division of Portland Youth Philharmonic, founded in 1929 as the first youth orchestra in the United States.

To help her prepare for the upcoming audition for the more advanced Portland Youth Conservatory Orchestra, we decided she would take some viola lessons with the Oregon Symphony Principal Violist. We were totally blown away after just one lesson.

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Formal Training in High Demand

Thursday, June 19th, 2014

This year at DAC, a question asked repeatedly got our attention: Do you offer advanced formal training program?

While we are not surprised by the request itself, the number, size, type and location of companies that asked about this was surprising. It included a wide spectrum of companies, from the U.S., Japan, Korea, China, along with large companies with established formal teams as well as small start-ups with no formal experience. Even EDA vendors asked if we could do training for them. (more…)

How Long Does It Take to Formally Verify This Design?

Friday, June 13th, 2014

This year at DAC, we asked attendees to participate in a guessing game – make an educated guess about how long it takes to formally verify a design based on the given design description and statistics.

Oski Guessing Game DAC 2014

How Long Does it Take to Formally Verify This Design?

Here is a recap of the information provided to participants:

Design Description

Reorder IP packets that can arrive out of order and dequeue them in order; when an exception occurs, the design flushes the IP packets for which exceptions has occurred. Support 36 different inputs that can send the data for one or more ports. Another interface provides dequeue requests for different ports. Design supports 48 different ports.

Design Interface

Packets arrive with valid signal; a request/grant mechanism for handling requests from 36 different sources; All 36 inputs are independent and can arrive concurrently; All 48 ports can be dequeued in parallel using another request/grant mechanism.

Design Micro-architecture Details

Supports enqueue and dequeue for IP packets for 362 different input and 48 different ports respectively; 48 different queues used to store IP packets for different ports; A round robin arbiter resolves contention between enqueue requests from different sources for the same port at the same cycle. (more…)

Cooley’s Report: Only Half The Story?

Friday, May 23rd, 2014

Every year John Cooley publishes a DAC “must-see” list – a veritable treasure map of good stories. While this list has served DAC attendees in the past, in recent years it has continued to miss an important segment of the ecosystem: the growing number of service providers.

Oski Technology is one such service provider. In fact Oski is the only service provider in the formal verification space, and plays an important role in promoting formal adoption in the industry. Formal can improve verification efficiency and productivity, lead to reduced project cost and shorten time-to-market. Since 2005 we have partnered with many leading semiconductor companies to tape out mission-critical designs and build up their internal formal expertise. (more…)

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