A Unified Runtime System for Heterogeneous Multi-core Architectures

Using program behaviour to exploit heterogeneous multi-core processors

Multi-core CPU architectures have become prevalent in recent years. A number of multi-core CPUs consist of not only multiple processing cores, but multiple different types of processing cores, each with different capabilities and specialisations. These heterogeneous multi-core architectures (HMAs) can deliver exceptional performance; however, they are notoriously difficult to program effectivel...

Exploiting the Cell/BE Architecture with the StarPU Unified Runtime System

Core specialization is currently one of the most promising ways for designing power-efficient multicore chips. However, approaching the theoretical peak performance of such heterogeneous multicore architectures with specialized accelerators, is a complex issue. While substantial effort has been devoted to efficiently offloading parts of the computation, designing an execution model that unifies...

Modeling and Simulation of a Dynamic Task-Based Runtime System for Heterogeneous Multi-core Architectures

Targeting the Parallella

Heterogeneous computing involves the combined use of processing elements with different architectures and is widely considered a prerequisite in the quest for higher performance and lower power consumption. To support this trend, the OpenMP standard has been recently augmented with directives that target systems consisting of general-purpose hosts and accelerator devices that may execute portio...

Towards a multifrontal QR factorization for heterogeneous architectures over runtime systems

During the last decade, computer architectures for high performance computing have considerably evolved toward heterogeneous systems equipped with different types of computational units and a higher number of cores per chips. An example of popular heterogeneous architectures widely adopted in the high performance computing domain are GPU-based systems. In the work presented in this talk we stud...