Tuesday, February 1, 2011

OCCAM for OpenCL

I'm thinking about, if I continue this work beyond my Ph.D. work, to develop a version of OCCAM that uses OpenCL. Here are some potential benefits that may result from using OCCAM with OpenCL:
  1. OpenCL is a stream-like language, similar to the programming model that OCCAM already targets. As a result, an OpenCL version of OCCAM would be relatively straightforward to do.
  2. OpenCL is/is becoming a widespread system for running parallel code on multicore as well as other platforms like GPGPU and CELL. As a result, moving to this platform would greatly improve the applicability of OCCAM.
  3. OpenCL is somewhat opaque in how it works under the hood, due to vendors' various proprietary implementations of it for their GPUs, etc. As a result, trying to ensure portable real-time performance on a variety of OpenCL platforms will be likely highly challenging.
  4. OCCAM's modeling of the application and computer system's behavior as a stochastic system can allow the application designer to work around this issue by adapting the application as needed. Providing such functionality may not require the full, multiple degrees of freedom implementation that OCCAM currently provides. Instead, it may only be necessary to provide a stripped-down version that just adapts the application to meet its timing deadline.

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