Evaluation of Cache Replacement Policies Using Various Typical Simulation Approaches


A technical paper titled “Improving the Representativeness of Simulation Intervals for the Cache Memory System” was published by researchers at Complutense University of Madrid, imec, and KU Leuven. Abstract: "Accurate simulation techniques are indispensable to efficiently propose new memory or architectural organizations. As implementing new hardware concepts in real systems is often not... » read more

Formal Verification’s Usefulness Widens


Formal verification is being deployed more often and in more places in chip designs as the number of possible interactions grows, and as those chips are used in more critical applications. In the past, much of formal verification was focused on whether a chip would function properly. But as designs become more complex and heterogeneous, and as use cases change, formal verification is being u... » read more

Design Space Simulator Of Distributed Multi-Chiplet Manycore Architectures For Comm-Intensive Applications


A technical paper titled “Muchisim: A Simulation Framework for Design Exploration of Multi-Chip Manycore Systems” was published by researchers at Princeton University. Abstract: "Current design-space exploration tools cannot accurately evaluate communication-intensive applications whose execution is data-dependent (e.g., graph analytics and sparse linear algebra) on scale-out manycore sys... » read more

A Flexible Cluster Tool Simulation Framework With Wafer Batch Dispatching Time Recommendation


The semiconductor manufacturing process consists of multiple steps and is usually time-consuming. Information like the turnaround time of a certain batch of wafers can be very useful for manufacturing engineers. A simulation model of manufacturing process can help predict the performance of manufacturing process efficiently, which is very beneficial to the manufacturing engineers. The simulatio... » read more

The Good Old Days Of EDA


Nostalgia is wonderful, but there is something about being involved in the formative years of an industry. Few people ever get to experience it, and it was probably one of the most fortuitous events to have happened in my life. Back in the early '80s, little in the way of design automation existed. There were a few gate- and transistor-level simulators, primarily for test and a few 'calculators... » read more

System State Challenges Widen


Knowing the state of a system is essential for many analysis and debug tasks, but it's becoming more difficult in heterogeneous systems that are crammed with an increasing array of features. There is a limit as to how many things engineers can keep track of, and the complexity of today's systems extends far beyond that. Hierarchy and abstraction are used to help focus on the important aspect... » read more

The Limits Of AI-Generated Models


In several recent stories, the subject of models has come up, and one recurrent theme is that AI may be able to help us generate models of a required abstraction. While this may be true in some cases, it is very dangerous in others. If we generalize, AI should be good for any model where the results are predominantly continuous, but discontinuities create problems. Unless those are found and... » read more

Anatomy Of A System Simulation


The semiconductor industry has greatly simplified analysis by consolidating around a small number of models and abstractions, but that capability is breaking down both at the implementation level and at the system level. Today, the biggest pressure is coming from the systems industry, where the electronic content is a small fraction of what must be integrated together. Systems companies tend... » read more

Memory And High-Speed Digital Design


As DRAM gets faster, timing constraints, jitter, and signal integrity become harder to control. The real challenge is to understand what can go wrong early in the design process, and that becomes more complex with each new version of memory and higher signal speeds. Stephen Slater, product manager for EDA products at Keysight, talks about how simulation can be applied to these issues, what to t... » read more

Maximizing Design Flexibility For Multi-Layered And Diffractive Optical Components


A broad range of optical devices use nanostructured layers and surfaces to manipulate beams of light through diffraction and interference. Example devices include diffraction gratings, metasurfaces, diffractive optical elements, and metalenses. While the purpose and function of these devices can differ, they offer similar challenges from the point of view of simulation. In this white paper, ... » read more

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