Working with ANN Indexes in Rust

• Building an index

• `Searching an index`_

• `CPU/GPU Interoperability`_

• `Serializing an index`_

Building an index

use cuvs::cagra::{Index, IndexParams};
use cuvs::{Resources, Result};

use ndarray_rand::rand_distr::Uniform;
use ndarray_rand::RandomExt;

/// Example showing how to index and search data with CAGRA
fn cagra_example() -> Result<()> {
    let res = Resources::new()?;

    // Create a new random dataset to index
    let n_datapoints = 65536;
    let n_features = 512;
    let dataset =
        ndarray::Array::<f32, _>::random((n_datapoints, n_features), Uniform::new(0., 1.0));

    // build the cagra index
    let build_params = IndexParams::new()?;
    let index = Index::build(&res, &build_params, &dataset)?;

    Ok(())
}