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PRESTOR-1: a processor extending multithreaded architecture

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PRESTOR-1: a processor extending multithreaded architecture

Content Provider	IEEE Xplore Digital Library
Author	Tanaka, K.
Copyright Year	2005
Description	Author affiliation: Sch. of Inf. Sci., Japan Adv. Inst. of Sci. & Technol., Japan (Tanaka, K.)
Abstract	Multithreaded processors are globally spreading. Multithreaded architecture enables fast context switching for tolerating memory access latency and bridging synchronization gap, and thus enables efficient utilization of execution pipelines. However, it cannot avoid all pipeline stalls; stalls still occur when all processor built-in threads are in a wait state or there are not enough threads in a task/process to fill up all available context slots, since the mechanism for switching active threads is effective only for processor built-in threads' contexts. We developed a new multithreaded processor, PRESTOR-1, that increases the virtual number of built-in threads' contexts and enables seamless task/thread switching by allocating and swapping task/thread contexts hierarchically between processor and memory in a multitasking environment. The processor supports real-time applications through hierarchical task/thread allocation based on the task/thread priority and fast response mechanisms for interrupt requests exploiting the multiple-context architecture. Moreover, the processor has reconfigurable caches that provide a priority-based partitioning cache and a FIFO buffer. In this paper, we describe the details of PRESTOR-1.
File Size	515459
File Format	PDF
ISBN	0769524834
ISSN	15373223
DOI	10.1109/IWIA.2005.39
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Yarn Pipelines Delay Large-scale systems Prototypes Large scale integration Packaging Registers Information science Multitasking
Content Type	Text
Resource Type	Article

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