Results 1 to 3 of 3

Thread: OpenCL system, device type

  1. #1
    Junior Member
    Join Date
    Nov 2007
    Posts
    9

    OpenCL system, device type

    In specification
    A device is defiend as below,

    Device: A device is a collection of compute units. A command-queue is used to queue
    commands to a device. Examples of commands include executing kernels, or reading and writing memory objects. OpenCL devices typically correspond to a GPU, a multi-core CPU, and other processors such as DSPs and the Cell/B.E. processor.


    Does this mean a platform cannot have more than one device of type CPU which is being host CPU/multicore CPU?
    Or would it be implementation defined?

  2. #2
    Senior Member
    Join Date
    Sep 2002
    Location
    Santa Clara
    Posts
    105

    Re: OpenCL system, device type

    The platform *can* have more than one device of type CPU. This totally depends on the OpenCL implementation as to how they want to expose the multi-core CPU to the user. For example, a 8-core CPU could be exposed as 1 CL device with 8 compute-units or 2 CL devices with 4 compute units and so on.

  3. #3
    Member
    Join Date
    Nov 2009
    Location
    Scotland
    Posts
    72

    Re: OpenCL system, device type

    Have a look at "device fission" in AMD's OpenCL implementation, e.g. here

Similar Threads

  1. Predefined Macros: device type
    By sean.settle in forum Suggestions for next release
    Replies: 11
    Last Post: 05-11-2012, 04:35 AM
  2. Reaction-diffusion: an ideal system for OpenCL?
    By tim_hutton in forum OpenCL
    Replies: 5
    Last Post: 10-28-2011, 03:44 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •