Yesterday we posted a research paper that talks about Amdahl’s law in multicore era. Here are a couple of links to whitepapers and articles by Intel researchers that discuss mitigating the effects of Amdahl’s law by Improving Multi-Core Architecture Power Efficiency through EPI Throttling and Asymmetric Multiprocessing.
Link to Bob Crepps’ article
Link to Murali Annavaram’s [...]

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Taking a big step in the IC business, Apple Computer Inc. has acquired PA Semi Inc., a supplier of embedded microprocessors, for $278 million in cash, according to Forbes.
Full Story on EETimes
Another link on tgdaily

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The chip maker says it has now fixed all design flaws in the silicon. The three Phenom X3 processors, which AMD officially released April 23, add some additional clock speeds to the lineup and help fill in the gap between the company’s traditional dual-core Athlon processors and its high-end quad-core Phenom models.
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Another Link

Review of AMD Tricore [...]

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As multi-core CPUs make parallel processing systems more prevalent, and more affordable, there is an increasing need for frameworks that help to handle threading, synchronization, deadlock detection, memory management, data pipelining, vertical/horizontal data partitioning, and so on. ArchitectZone lists the following two-part article series that will discuss some of the special design, development and testing [...]

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Mark D. Hill and Michael R. Marty apply Amdahl’s law to multicore chips in the following paper.
Link to Paper

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Steve Furniss, Sun’s vice-president of global sales and services, believes the old Moore’s Law is not working anymore, and what the computer industry needs is a new paradigm. He says the advent of Web 2.0 and other business applications are causing growth on a scale that “is beyond everyone’s comprehension”, and the processing speeds of [...]

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Although its a little late to announce that ‘The multicore era is upon us’, ZDNet has the following story which shows the roadmap of various processors.
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Until now, programmers have been looking up to Moore’s law to speed-up their sequential program with each subsequent processor. But due to the physical limitations in chip design, the programmers’ “free lunch” is over: Multi-core architectures – multiple CPUs on a single chip – bring improved power efficiency, while each of the cores could be [...]

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Ali Akoglu and his students at The University of Arizona are working on hybrid hardware/software systems that one day might use machine intelligence to allow the spacecraft to heal themselves.
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An overview of Tim Mattson’s keynote speech at IEEE DATC Electronic Design Processes Workshop held in Monterey, California. Tim is a principal engineer at Intel’s Applications Research Laboratory.
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It hasn’t taken long for some of Nvidia’s recent acquisitions to bear fruit. Just a few months ago the company got its hands on trailblazing games physics company Ageia. Now it appears the PhysX engine is already running on Nvidia graphics cards.
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The processors we are seeing now, and will continue to see in at least the medium-term, will offer performance improvements only to those applications that can take advantage of many cores at one time. Allinea Software sees this as the perfect opportunity for their particular expertise.
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With AMD Phenom X4 9100e quad-core processors, digital media enthusiasts and performance-hungry users can experience the powerful computing capabilities of a true multi-core architecture with a processor operating at a maximum of 65-watts.
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The Cluster Exploratory (CluE) program is providing NSF-funded researchers access to software and services running on a Google-IBM cluster to explore innovative research ideas in data-intensive computing.
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ElcomSoft, a leader in password recovery, has added multiprocessor and multicore support to ElcomSoft Distributed Password Recovery v. 2.50.
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Through new research, standards and tools, the industry is just starting to address what’s being called a software gap between a rising tide of multicore processors and a lack of parallel programming tools and techniques to make use of them.
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Two such terms currently in circulation are ‘virtualisation’ and ‘hypervisor’. Why is there now so much fuss about hypervisors? The answer is the emergence of multicore processors.
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Article in .pdf

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Sometimes you can have your scalability and boost it, too. The author considers how to set superlinear speedups by harnessing more resources.
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More Herb Sutter’s talks and articles

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