GPU-Computing macOS Big Sur vs iBuntu Lux Sur

Hello,

Let’s test this beauty from the last post on… LuxMark ;-). The thing is that I wanted to compare OpenCL. I know that OpenCL in both systems is not working entirely right. I found on macOS that (multi-GPU case) clFinish(q) is slow down each time, on iBuntu -cl-fast-relaxed-math causes a black-scenes on Lux Ball… and on Darknet on OpenCL it is more things wrong, but maybe there are my bugs, so… ;-). In one system performance test, let’s look at the 4 x AMD Radeon RX 6900 XT.

MMM03

iBuntu Lix Sur (why not?!), AMD Ubuntu GPU-Driver v21.20, LuxMark 3.x, Scene Lux Ball, -cl-fast-relaxed-math (disabled, cause of errors!):
Test01-iBuntu

macOS Big Sur 11.5.1, Apple GPU-Driver OpenCL 1.2 (Jun 25 2021 18:15:31), LuxMark 3.x, Scene Lux Ball, -cl-fast-relaxed-math (disabled, cause of iBuntu to check the same!):
Test01-macOS

iBuntu Lix Sur (why not?!), AMD Ubuntu GPU-Driver v21.20, LuxMark 3.x, Scene Neuman Mic, -cl-fast-relaxed-math (disabled, cause of errors!):
Test02-iBuntu

macOS Big Sur 11.5.1, Apple GPU-Driver OpenCL 1.2 (Jun 25 2021 18:15:31), LuxMark 3.x, Scene Neuman Mic, -cl-fast-relaxed-math (disabled, cause of iBuntu to check the same!):
Test02-macOS

iBuntu Lix Sur (why not?!), AMD Ubuntu GPU-Driver v21.20, LuxMark 3.x, Scene Hotel Lobby, -cl-fast-relaxed-math (disabled, cause of errors!):
Test03-iBuntu

macOS Big Sur 11.5.1, Apple GPU-Driver OpenCL 1.2 (Jun 25 2021 18:15:31), LuxMark 3.x, Scene Hotel Lobby, -cl-fast-relaxed-math (disabled, cause of iBuntu to check the same!):
Test03-macOS

What are the conclusions..? Like all passionate associate scientists who have to pay from their own money for research equipment lab and cannot buy Radeon Pro or Instinct GPU cards, I decided to move to iBuntu. I re-tried the tests on macOS Big Sur 11.5.1 I did last time. I am super happy to use iBuntu. Overall my research will be on it. I test only macOS, and with a vast temptation cannot use macOS once it is not correct. I plan to use iBuntu to not break any license. Thanks for reading, happy weekend!

p ;).

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