Macros to Work With Parallelism - Macros to Work With Parallelism - 2025.2 English

Vitis Libraries
Release Date
2026-02-09
Version
2025.2 English

There are two macros that are defined to work with parallelism:

  • The XF_NPIXPERCYCLE(flags) macro resolves to the number of pixels processed per cycle.
    • XF_NPIXPERCYCLE(XF_NPPC1) resolves to 1
    • XF_NPIXPERCYCLE(XF_NPPC2) resolves to 2
    • XF_NPIXPERCYCLE(XF_NPPC4) resolves to 4
    • XF_NPIXPERCYCLE(XF_NPPC8) resolves to 8
  • The XF_BITSHIFT(flags) macro resolves to the number of times to shift the image size to right to arrive at the final data transfer size for parallel processing.
    • XF_BITSHIFT(XF_NPPC1) resolves to 0
    • XF_BITSHIFT(XF_NPPC2) resolves to 1
    • XF_BITSHIFT(XF_NPPC4) resolves to 2
    • XF_BITSHIFT(XF_NPPC8) resolves to 3