This book introduces new massively parallel computer (MPSoC) architectures called invasive
tightly coupled processor arrays. It proposes strategies architecture designs and programming
interfaces for invasive TCPAs that allow invading and subsequently executing loop programs with
strict requirements or guarantees of non-functional execution qualities such as performance
power consumption and reliability. For the first time such a configurable processor array
architecture consisting of locally interconnected VLIW processing elements can be claimed by
programs either in full or in part using the principle of invasive computing. Invasive TCPAs
provide unprecedented energy efficiency for the parallel execution of nested loop programs by
avoiding any global memory access such as GPUs and may even support loops with complex
dependencies such as loop-carried dependencies that are not amenable to parallel execution on
GPUs. For this purpose the book proposes different invasion strategies for claiming a desired
number of processing elements (PEs) or region within a TCPA exclusively for an application
according to performance requirements. It not only presents models for implementing invasion
strategies in hardware but also proposes two distinct design flavors for dedicated hardware
components to support invasion control on TCPAs.
