Hacker News Reader

Here's mine: https://gist.github.com/grishka/ed84e4bbfacfbcf4ddc5e63cfc96...

I suppose the next step for me would be to make use of the GPU, which is a much better fit for this job and I'm sure would increase my hash rate by orders of magnitude, but I researched it for a bit and running code on the GPU on a Mac is cumbersome to say the least.

View on HN

I have always wanted to learn about GPU programming. Now might be the time.

I couldn't resist, so here's the GPU hasher: https://gist.github.com/grishka/c1be1c035f39564debfd4b195bdf...

It gets around 232.5 MH/s on the M1 Max. There's also an optimization that exploits the fact that SHA256 is incremental, so the state for the common prefix could be pre-computed and then copied and only updated with the variable part. This yields around 30% performance boost.

I'm able to get 250MH/s with this. M1 Pro

I made some improvements and it's now 340MH/s

Reply on news.ycombinator.com