Sea Of Processors Use Case


Core counts have been increasing steadily since IBM's debut of the Power 4 in 2001, eclipsing 100 CPU cores and over 1,000 for AI accelerators. While sea of processor architectures feature a stamp and repeat design, per-core workloads aren't always going to be symmetrically balanced. For example, a cloud provider (AI or compute) will rent out individual core clusters to customers for specialize... » read more

SparseP: Towards Efficient Sparse Matrix Vector Multiplication on Real Processing-In-Memory Systems


Abstract "Several manufacturers have already started to commercialize near-bank Processing-In-Memory (PIM) architectures. Near-bank PIM architectures place simple cores close to DRAM banks and can yield significant performance and energy improvements in parallel applications by alleviating data access costs. Real PIM systems can provide high levels of parallelism, large aggregate memory bandwi... » read more

Multicore Debug Evolves To The System-Level


The proliferation and expansion of multicore architectures is making debug much more difficult and time-consuming, which in turn is increasing demand for more comprehensive system-level tools and approaches. Multicore/multiprocessor designs are the most complex devices to debug. More interactions and interdependencies between cores mean more things possibly can go wrong. In fact, so many pro... » read more

The Benefits Of Using Embedded Sensing Fabrics In AI Devices


AI chips, regardless of the application, are not regular ASICs and tend to be very large, this essentially means that AI chips are reaching the reticle limits in-terms of their size. They are also usually dominated by an array of regular structures and this helps to mitigate yield issues by building in tolerance to defect density due to the sheer number of processor blocks. The reason behind... » read more

Embedded Multicore: Enablement Of Heterogeneous OSes And Mixed Criticality Systems


The implementation of multicore embedded systems is becoming increasingly common. The decision to realize a design using multiple processors may be influenced by a number of factors; broadly these are technical goals to attain, a time to market to achieve, and target design and production costs. Using multicore in a design requires a number of key decisions, which, as with most embedded systems... » read more

Pushing Performance: Analysis and Optimization of Multicore Communication with SLX


In theory, multicore programming should be simple: Tasks are placed on available cores and allocated a data buffer in the shared memory to communicate data between two tasks. However, the amount of communication resources in the latest multicore SoC is very limited. One cannot deal with all the data communications required by all the tasks without being able to understand communication conte... » read more

Finding And Avoiding Concurrency Bugs


Understanding the intended and unintended interactions between hardware and software components is changing as architectures become more heterogeneous and interconnect topologies get more complicated. This affects performance, power consumption and cost of the project. Lots of universities are researching this from a software perspective, while a small number are looking at the implications fro... » read more

Multicore Software Design For An LTE Base Station


This paper presents a typical base station design scenario, where decisions about HW/SW partitioning, the number of processing elements, and operational system parameters, among other things, need to be made early on by system architects. SLX determines the impact of these various design decisions and parameter selections, while exploring different target architecture configurations and checks ... » read more

Inaccurate Assumptions Mean Software Issues


It doesn’t seem that long ago when features and functionality were being added to next generation processors and SoCs ahead of demand. Actually, I recall when new processors were released, embedded software developers were forced to think of innovative ways to exploit the new features in order to differentiate the product to not be left behind. Today, in many respects it seems as if the... » read more

Creating Software Separation For Mixed Criticality Systems


The continued evolution of powerful embedded processors is enabling more functionality to be consolidated into single heterogeneous multicore devices. Mixed criticality designs, those designs which contain both safety-critical and non-safety critical processes, can successfully leverage these devices and meet the regulatory requirements for IEC safety standards and the highest level of ISO. Thi... » read more

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