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New Intel chips will have lots more cores, need Scala

Pat Farrell
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Joined: Aug 11, 2007
Posts: 4655
    
    5

WashPost story on Intel massively parallel cores

Today, Intel, the world's largest chipmaker, is revealing details about
a new chip that seeks to improve performance not by boosting frequency,
but by putting more processors or "cores" onto a single chip.


While the Post story talks about ten cores, its clear that Intel will have 16, 32, or even more cores in future chips.

I'm pretty sure that Java is not the answer to run that many cores well. I hope Scala helps.
Ulf Dittmer
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Joined: Mar 22, 2005
Posts: 41823
    
  63
Do you mean Scala-on-JVM or some Java-less dialect of Scala?

It'll be interesting to see how different languages (or parallel processing frameworks) take advantage of this. Just distributing large data structures over the various cores, and then working on them in parallel is probably not the (complete) answer. High Performance Fortran (HPF) tried that, but didn't succeed. And that's even though it did require hints as to how exactly to distribute and align the arrays across processors.


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Pat Farrell
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Joined: Aug 11, 2007
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Originally posted by Ulf Dittmer:
Do you mean Scala-on-JVM or some Java-less dialect of Scala?


I didn't know that there was anything but Scala running on JVM.

I believe, IMHO, etc., that Java threading is too hard. The solution is to have a language that is less procedural, and let the compiler do the parallel chopping and reassembly.

Whether Scala is it or not, too early to tell.
Jesper de Jong
Java Cowboy
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Joined: Aug 16, 2005
Posts: 14146
    
  18

Intel already has a 80-core processor, which they made for research purposes.

Here's a YouTube video of it, and here's Intel's news release about it. They say it uses only 62 Watts, which is about the same as or even less than a Core 2 Duo processor.


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Pat Farrell
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Joined: Aug 11, 2007
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Originally posted by Jesper Young:
Intel already has a 80-core processor, which they made for research purposes.


Thanks, I didn't know about that one in particular. But Intel's direction has been clear for a while. It won't be long before 16 processors are in mass market PCs. Maybe even in iPhones.

And unless we get either better tools, or get much smarter developers, most of those CPUs will be wasted.
Stefan Wagner
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Joined: Jun 02, 2003
Posts: 1923

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