Google Tech Talks
February 6, 2009
ABSTRACT
Over the last several decades computer architects have been phenomenally successful turning the transistor bounty provided by Moore's Law into chips wi...
Google Tech Talks February 6, 2009
ABSTRACT
Over the last several decades computer architects have been phenomenally successful turning the transistor bounty provided by Moore's Law into chips with ever increasing single-threaded performance. During many of these successful years, however, many researchers paid scant attention to multiprocessor work. Now as vendors turn to multicore chips, researchers are reacting with more papers on multi-threaded systems. While this is good, we are concerned that further work on single-thread performance will be squashed.
To help understand future high-level trade-offs, we develop a corollary to Amdahl's Law for multicore chips [Hill & Marty, IEEE Computer 2008]. It models fixed chip resources for alternative designs that use symmetric cores, asymmetric cores, or dynamic techniques that allow cores to work together on sequential execution. Our results encourage multicore designers to view performance of the entire chip rather than focus on core efficiencies. Moreover, we observe that obtaining optimal multicore performance requires further research BOTH in extracting more parallelism and making sequential cores faster.
This talk is based on an HPCA 2008 keynote address.
Speaker: Mark D. Hill Mark D. Hill (http://www.cs.wisc.edu/~markhill) is professor in both the computer sciences department and the electrical and computer engineering department at the University of Wisconsin--Madison, where he also co-leads the Wisconsin Multifacet (http://www.cs.wisc.edu/multifacet/) project with David Wood. His research interests include parallel computer system design, memory system design, computer simulation, and recently transactional memory. He earned a PhD from University of California, Berkeley. He is an ACM Fellow and a Fellow of the IEEE.
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(PS. to my below message on the challenges of architecture evolution and the current OS monopoly)
The future of the OS market may crack open with luck. The world's future OS belongs to the best parallelization code writers on the planet. YOU guys can kick MS tail. Monopoly my a**. Cheers to the future.
FASCINATING. What a clearly presented lecture. Covers basics and extrapolates. It is time for the Wintel monopoly to be broken up. PERIOD.
Microsoft should open up its OS for SUN Niagara or SPARC multicore chips. Intel should focus on a clean break and make improvemed processors.
Instead we have Microshaft's approach to multicore parallelism (how to increase "F" in the lecture) : we have a cool aero glassy interface. the graphic part of the OS can run on another core.
It is common knowledge that in Computer Science we typically make the trade between speed and size. Some people call that the Space vs. Time tradeoff. Yes we can do more faster but yes it is more complicated so we use more space in our code sets to sole sets of ever increasingly complex problems.
¥ŸŸŸŸ¥ ¥½¹º½¥ ¥ŸŸŸŸ¥ 1-Highlight This text 2-Post on 5 different Videos 3-Close out browser 4-Open Internet back up 5-Look at the Youtube Mainpage 6-Thank JadedTombstone
a neuron cant calculate shit. i'd think it would be better to compare a neuron to a transistor. and ye, getting to that much transistors might be a few years ahead too ^_^ Anyways, fucking awesome video.
Yes, I agree with you that the capitalist system enslaves us. It is quite obvious how it is a protectionist racket of cronyism. With all bail-outs to the politicians friends.
But we must also be careful to not confuse the true solidarity that exists amongst people doing business with each other on a voluntary basis which could be even more altruistic if only government didn't threaten and mug us people that is trying to do peaceful exchange.
Autoshare makes certain YouTube activities public on the services you choose. Select only the services you are comfortable with - like Facebook, Twitter, or Google Reader - to let your friends know what you like on YouTube. You can turn Autoshare off at any time.
The future of the OS market may crack open with luck. The world's future OS belongs to the best parallelization code writers on the planet. YOU guys can kick MS tail. Monopoly my a**. Cheers to the future.
Covers basics and extrapolates. It is time for the Wintel monopoly to be broken up. PERIOD.
Microsoft should open up its OS for SUN Niagara or SPARC multicore chips. Intel should focus on a clean break and make improvemed processors.
Instead we have Microshaft's approach to multicore parallelism (how to increase "F" in the lecture) : we have a cool aero glassy interface. the graphic part of the OS can run on another core.
Thank you Microshaft.
¥½¹º½¥
¥ŸŸŸŸ¥
1-Highlight This text
2-Post on 5 different Videos
3-Close out browser
4-Open Internet back up
5-Look at the Youtube Mainpage
6-Thank JadedTombstone
/▌
/ \
This is Bob, copy and paste to help Bob take over Youtube.
Anyways, fucking awesome video.
But we must also be careful to not confuse the true solidarity that exists amongst people doing business with each other on a voluntary basis which could be even more altruistic if only government didn't threaten and mug us people that is trying to do peaceful exchange.