GPU support for Qdrant

[aksh-wot]

I want to use GPU for vector matching. Can we use GPU for vector matching and indexing for faster results.

[generall]

Hi @aksh-wot, according to our benchmarks, there are no significant speedup considering the price of GPU.
The only place where it can do the difference is linear search (at least I didn't see any implementations which would provide meaningful GPU support for HNSW).

We will continue to investigate possibilities from our side, but the results are expected not earlier than second half of 2024