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0 pointsthe__alchemist10mo ago0 comments

This is confusing: GPUs seem great for scientific computations. You often want f64 for scientific computation. GPUs aren't good with f64.

I'm trying to evaluate if I can get away with f32 for GPU use for my molecular docking software. Might be OK, but I've hit cases broadly where f64 is fine, but f32 is not.

I suppose this is because the dominant uses games and AI/ML use f32, or for AI even less‽

0 comments

oivey10mo ago

You need cards like the A100 / H100 / H200 / B200. GPUs aren’t fundamentally worse at f64. Nvidia just makes it worse in many cards for market segmentation.

j / k navigate · click thread line to collapse

0 pointsthe__alchemist10mo ago0 comments

This is confusing: GPUs seem great for scientific computations. You often want f64 for scientific computation. GPUs aren't good with f64.

I'm trying to evaluate if I can get away with f32 for GPU use for my molecular docking software. Might be OK, but I've hit cases broadly where f64 is fine, but f32 is not.

I suppose this is because the dominant uses games and AI/ML use f32, or for AI even less‽

0 comments

oivey10mo ago

You need cards like the A100 / H100 / H200 / B200. GPUs aren’t fundamentally worse at f64. Nvidia just makes it worse in many cards for market segmentation.

j / k navigate · click thread line to collapse