Monday, February 7, 2011

Sky Discussion


Quantization
  • cache simulation to see the behavior, miss rate high??
  • modifying data frequently, impact the performance.
  • what has been called before during and after this routine, cache data, (later...)
  • try to simulate in Cachegrind... to check the miss for each lines... and each source code.

Memory access pattern
  • similar to the cats image. (pcb_large), memory behaves very similar, show relative low cache miss rate
  • sim_num_cycles, print the number of warp around.

Work
  • cachegrind to analyze the fusion... check the cache miss before and after fusion (the line inspecting feature in cachegrind)
  • loop bound graph in cblk for other color images
  • 3-D plot in mpfast, separate reads and writes count, and showing the intensity
  • vectorization for quantization? on 32 bit quad core processor
  • visual cache behavior

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