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SMT
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abalfazl hossein
Ranch Hand
Joined: Sep 06, 2007
Posts: 547
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To utilize a dual core processor, the operating system must be able to recognize multi-threading and the software must have simultaneous multi-threading technology (SMT) written into its code. SMT enables parallel multi-threading wherein the cores are served multi-threaded instructions in parallel. Without SMT the software will only recognize one core. Adobe Photoshop is an example of SMT-aware software. SMT is also used with multi-processor systems common to servers.
May someone explain more how to write a software to support SMT?
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William Brogden
Author and all-around good cowpoke
Rancher
Joined: Mar 22, 2000
Posts: 11691
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As far as I know standard Java automatically handles using assigning Threads to multiple processor cores and has since version 1. It is build into the JVM.
Bill
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Java Resources at www.wbrogden.com
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Henry Wong
author
Sheriff
Joined: Sep 28, 2004
Posts: 13409
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All modern JVM passes the handling of threads to the underlying threading system. And all of the top threading systems -- Windows, POSIX, and Solaris -- will place different threads on different cores of a multiprocessor system.
Unless you are using a really old, or not common JVM, I think it is safe to assume that your threads will scale with multiprocessor systems.
Henry
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Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
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subject: SMT
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