3 Replies Latest reply on Jan 19, 2011 3:05 PM by himanshu.gautam

    Image - Multidimensional NDRange - Advantage?

    steveh_ol

      Hi,

      for an algorithm working on an image pixel by pixel, is there an actual advantage if one uses a e.g. two dimensional NDRange for the global and local threads rather than a one dimensional NDRange?

      For example the global thread number could be a 2 dimensional (image.width, image.height) NDRange or with image.width*image.height a one dimensional.

      I pack my image data to a one dimensional array with size image.width*image.height, so i would have to do an additional computation on the GPU to get my array index from the 2 dimensional global NDRange.

      Did I miss any possible advantage that comes with e.g. a 2-dimensional NDRange in my particular case?

       

      Thank you in advance,

      Greetings,

      steve