AMD 64 X2 Processor: Any what to tell what program/process is assigned to processor?

Discussion in 'Windows 64bit' started by The Frozen Canuck, Jan 14, 2006.

  1. Or does the core logic split some programs/processes between two processor?

    Canuck
    The Frozen Canuck, Jan 14, 2006
    #1
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  2. Only multithreaded processes can make use of multiple cores at once. In
    Windows, a 'process' defines the memory address space. It is 'threads' that
    run on a given core/processor within a 'process'. A single-threaded
    application can only run on a single processor at a time. Which
    processor/core to assign is typically left up to the OS scheduler.

    Also, while some older programs were written as 'multithreaded'
    applications, they were never tested on true multi-processor systems and
    therefore don't actually work correctly in situations where they are running
    multiple threads simultaneously. These programs are typically fixed by
    setting up a 'shim' through the Windows Application Compability Toolkit to
    force all their threads to run on a single processor. In these cases, the
    'shim' usually forces all threads associated with that program to always run
    on core/processor 0.

    --
    Chuck Walbourn
    SDE, Windows Gaming & Graphics

    This posting is provided "AS IS" with no warranties, and confers no rights.
    Chuck Walbourn [MSFT], Jan 16, 2006
    #2
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