The present paper focuses on applications that are periodic and have both latency and throughput constraints. For these applications, pipeline scheduling is effective for reducing energy consumption. Thus, the present paper proposes a pipelined task scheduling method for minimizing the energy consumption of GALS MP-SoC under latency and throughput constraints. First, we model target GALS MP-SoC...

Embedded systems often contain multiple applications, some of which have real-time requirements and whose performance must be guaranteed. To efficiently execute applications, modern embedded systems contain Globally Asynchronous Locally Synchronous (GALS) processors, network on chip, DRAM and SRAM memories, and system software, e.g. microkernel and communication libraries. In this paper we desc...

This paper proposes a new approach to on-line identi® cation of continuous timedelay systems from sampled input± output data. In order to track the time-varying time-delay and system parameters, the linear recursive least-squares (RLS) method is combined in a bootstrap manner with the genetic algorithm (GA) which has a high potential for global optimization. The time-delay is coded into binary ...

Abstract This report discusses the power efficient communication in a Network-on-Chip (NoC) on a Globally-Asynchronous-Locally-Synchronous (GALS) system, stepping away from a fully synchronous design. The focus is on the communication window with the control and data signals, which are both examined for the possibility of minimizing power consumption. For the estimation of the power consumption...

This paper presents methods for addressing two sources of variability in the context of microprocessors within-die process variability and dynamic thermal variability and shows the improvements in performance and energy efficiency obtained by applying them to a globally asynchronous, locally synchronous (GALS) microprocessor design. The GALS design style partitions the core into several indepen...

Why did the registration of Gals for name as a trademark and publication Constitutional Tribunal’s ruling stop largest protest movements women’s rights in democratic Poland despite unaccomplished goals? What was source 2018 2021 demobilization acts subsequent waves non-mobilization? Drawing on theory moral injury narrative research methodology, this article aims to account determinants Gals’ Al...

We present a new technique for the concurrent asynchronous/GALS implementation of polychronous specifications. We start from programs written in multi-clock languages such as Signal/Polychrony or Esterel. We provide compact data structures and corresponding algorithms for program analysis, following the theory of weakly endochronous systems. Finally, we produce multi-threaded deterministic asyn...

Many systems on chip (SOCs) use a globally-asynchronous locally-synchronous (GALS) design style to solve timing and scalability issues. This design style however also introduces two fundamental problems for debug; (1) how to obtain a consistent state, and (2) how to force the SOC to arrive in an erroneous state. The CSAR debug approach presented here addresses these problems. It uses temporal a...

Testing of chips built using deep sub-micron technology is becoming harder since crosstalk and small variations in the fabrication processes are adversely affecting circuit dynamic behaviour. The resulting logic and delay faults can only be detected using at-speed testing of the circuits. Faults resulting from crosstalk become more prominent among long links connecting two clock domains in a sy...