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Created by Martin Bauer@bauerReporter1 of 3 tasks completed1/3 tasks

Fluctuating (Randomized, Thermalized) LBM

  • get random number from external field, add kernel to test suite @winterhalter
  • physical test case to check random number correlation (auto correlation function?) @kuron
  • final version should compute random numbers in the kernel itself. 'mulhi' / 'mullo' functions are required - philox RNG - write a pystencils function similar to bitoperations for these operations - on x86 there are intrinsics for mulhi/mullo, alternatively one could also use AES instead of philox since there is also a intrinsic for that - on GPU there should also be an intrinsic - C fallback as one-liner - two versions required for drawing float & double random numbers - fast versions produce 2 or more RN per step, how to handle this?

Fixes walberla/walberla#80 (closed)

Edited by Martin Bauer