Look at New Parallelisation Technologies
an invention by aschnell
Updated over 5 years ago. 2 hacker ♥️. 1 follower.

The idea is to look at some technologies:

  • C++17 parallel execution
  • TBB (used by g++)
  • Intel AVX-512

Some example programs should be written to demonstrate the possible speed improvement using each technology and even combinations of the technologies.

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This project is part of:

Hack Week 18

Activity

  • over 5 years ago: a_faerber liked this project.
  • over 5 years ago: aschnell started this project.
  • over 5 years ago: aschnell liked this project.
  • over 5 years ago: aschnell originated this project.


    • Comments

    • aschnell
      over 5 years ago by aschnell | Reply

      I used the well-known mandelbrot set as a test program using parallel code and/or AVX-512 instructions. The speedup for parallel code is factor 6.7, for AVX-512 it is 7.6 and for both it is 49.8. For AVX it is important to know that the CPU frequency drops from 3.7 to 3.4 GHz.

      The CPU has 4 cores and hyper-threading. With AVX-512 eight double operations can be done with one instruction.

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