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Posts Tagged ‘abstract primitives’

Portable Stimulus Layer 1: Test Abstraction

Thursday, May 14th, 2015

From the number of blog views, it’s clear that the topic of “portable stimulus” is of considerable interest to our readers. As a reminder, Accellera’s Portable Stimulus Working Group (PSWG) is developing a standard in this area and Breker is helping to lead this effort. In our last two posts on this topic, we have outlined our guiding principles for any proposed standard, based on our own experience over the years with our most advanced customers. We also split the goal of the portable stimulus effort into three parts: defining the tests using abstract primitive operations, scheduling the tests across multiple threads and multiple processors, and randomizing the control flow to verify the full range of realistic use-case scenarios.

For this post, we’re going to explore the first level in more detail. We made the statement in our last post that the test abstraction level can be standardized using a simple application programming interface (API) to specify the abstract steps of the test. The API defines the access to a base-class library providing the primitive operations used to create portable tests. First of all, let’s be clear that this is not a theoretical proposal. We have provided a library with a defined API for several years and this is a key building block of our own portable stimulus and test solution. We know that this approach works from our own customers and believe that it would be an excellent foundation for a standard.


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