Introduction to kernel (GPU) programming in Julia with an NBody simulation

This is a lecture I did recently at MIT. I was a little low energy, but thought the lecture turned out reasonably well and certainly had information that is hard to find elsewhere.

I edited it to remove faces and names (except Valentin, who is a core developer of the Julia language and a personal friend of mine).

00:00 Introduction
01:25 GPUs in Julia
11:52 Nbody intro
15:55 NBody implementation
51:15 CPU parallelization
57:45 KernelAbstractions start
1:20:27 CPU GPU profiling
1:23:17 Discussion

[xxx]

Hey, take care of your hand. I haven't seen you live in a while, I think you were talking about gravity simulations last I checked. Keep it up!

[shyrealist]

I think at the start you were talking about the benefits for debugging but then at the end you cut out all the debugging 😢
I was hoping to see how obvious (from the error messages) the mistakes were and also what were the changes that you had to make when switching to the RocArray?

[DaveJames-zy]

Hope your Friday is figured out. What's the best option for someone of your levels computer programming ability offering a zoom or live tutoring session

[anakimluke]

Syntax highlighting?? Who are you and what have you done with the real james??

[Gordy-iosb]

2 years between now and your last upload. Seems like this channel is pretty much ded, and you're just throwing some scrap.