Ann build not paralleled

[jianshu93]

Hello,

Thanks for this reimplementation. I noticed when running Ann.building() in the demo it is not paralleled. Apparently, the k-means tree can be paralleled right. any iter() could be change to par_iter(). For example, Lin 147 in ann.rs can be changed to .par_iter() using rayon package?

Thanks,

Jianshu

[uzushino]

Hi @jianshu93

any iter() could be change to par_iter(). For example, Lin 147 in ann.rs can be changed to .par_iter() using rayon package?

That's a good idea.
I don't know how to use random number generator in rayon::par_iter() but I'll give it some thought.

[jianshu93]

Hello uzushino,

Any update on this parallel idea? I am thinking annoy in rust should be faster than the Spotify version with rayon par_iter().

Thanks,

Jianshu