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Adaptive Scheduling for Time-Triggered Network-on-Chip-Based Multi-Core Architecture Using Genetic Algorithm


Abstract "Adaptation in time-triggered systems can be motivated by energy efficiency, fault recovery, and changing environmental conditions. Adaptation in time-triggered systems is achieved by preserving temporal predictability through metascheduling techniques. Nevertheless, utilising existing metascheduling schemes for time-triggered network-on-chip architectures poses design time computatio... » read more

End-To-End Traceability


Despite standards such as ISO 26262 and IEC 61508, there are still disconnects and gaps in the supply chain and design-through-manufacturing flows. Kurt Shuler, vice president of marketing at Arteris IP, digs into what's missing, why changes made in one area are not reflected in other areas and throughout the product lifecycle, and why various different phases of the flow don't always match up ... » read more

What Is An xPU?


Almost every day there is an announcement about a new processor architecture, and it is given a three-letter acronym — TPU, IPU, NPU. But what really distinguishes them? Are there really that many unique processor architectures, or is something else happening? In 2018, John L. Hennessy and David A. Patterson delivered the Turing lecture entitled, "A New Golden Age for Computer Architecture... » read more

More NoC Wisdom


A common experience for anyone promoting a disruptive technology is that prospective customers understand that what is being offered is different. Still, without a familiar reference to compare, they extrapolate expectations unreliably. Sometimes expectations are extrapolated to infinity: “My existing solution has limitations, but the new technology should have no limitations.” Sometimes ex... » read more

Using Machine Learning For Characterizations Of NoC Components


Modern NoC (Network-on-Chip) is built of complex functional blocks, such as packet switches and protocol converters. PPA (performance/power/area) estimates for these components are highly desirable during early design phases – long before NoC gate level netlist is synthesized. At this stage a NoC component is a soft module, described by a set of architectural parameters, like the bit width of... » read more

NoC Experiences From The Trenches


Network-on-chip (NoC) interconnect as an alternative to traditional crossbars is already well-proven, but there are still plenty of design teams on the cusp of a transition or who maybe do not yet see a need for a change. As with a switch to any new technology, the first hurdles are often simply misconceptions. When new users first evaluate any new technology, they often make the mistake of att... » read more

Better Optimization For Many-Core AI Chips


The rise of massively parallel computing has led to an explosion of silicon complexity, driven by the need to process data for artificial intelligence (AI) and machine learning (ML) applications. This complexity is seen in designs like the Cerebras Wafer Scale Engine (figure 1), a tiled manycore, multiple wafer die with a transistor count into the trillions and nearly a million compute cores. ... » read more

Automotive AI Hardware: A New Breed


Arteris IP functional safety manager Stefano Lorenzini recently presented “Automotive Systems-on-Chip (SoCs) with AI/ML and Functional Safety” at the Linley Processor Conference. A main point of the presentation was that conventional wisdom on AI hardware markets is binary. There’s AI in the cloud: Big, power-hungry, general-purpose. And there’s AI at the edge: Small, low power, limited... » read more

Interconnects In A Domain-Specific World


Moving data around is probably the least interesting aspect of system design, but it is one of three legs that defines the key performance indicators (KPI) for a system. Computation, memory, and interconnect all need to be balanced. Otherwise, resources are wasted and performance is lost. The problem is that the interconnect is rarely seen as a contributor to system functionality. It is seen... » read more

SoC Integration Complexity: Size Doesn’t (Always) Matter


It’s common when talking about complexity in systems-on-chip (SoCs) to haul out monster examples: application processors, giant AI chips, and the like. Breaking with that tradition, consider an internet of things (IoT) design, which can still challenge engineers with plenty of complexity in architecture and integration. This complexity springs from two drivers: very low power consumption, eve... » read more

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