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Invasive Parallel Computing - An Introduction

Technology roadmaps foresee already today 1000 and more processors being integrated in a single MPSoC in the year 2020. For such systems, the control of many concurrent applications can obviously not be organized in a fully centralized way any more as it is done in today’s multi-core processor systems. Also, feature variations are expected to become a severe problem threatening not only performance but also correctness of computations. One way shown how be able to cope with an expected increase of run-time uncertainties is to exploit flexibility of as well the code to be executed as the reconfigurability of the underlying hardware resources. The only major question is at what price this can and should be done, to what degree, and in the control of whom such adaptations shall take place. In this introductory talk, we present a novel paradigm for an application-driven, decentralized as well as resource-aware organization of concurrent applications on future large scale MPSoCs called "Invasive Computing". The main idea of "Invasive Computing" relies on the vision that application-developers are typically conscious of the temporal computational demands of their programs and that these should be able to spread their load at run-time on processors, communication and memory resources themselves in phases called invasion.

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