faiss/benchs/bench_hamming_knn.py
Michael Norris eff0898a13 Enable linting: lint config changes plus arc lint command (#3966)
Summary:
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/3966

This actually enables the linting.

Manual changes:
- tools/arcanist/lint/fbsource-licenselint-config.toml
- tools/arcanist/lint/fbsource-lint-engine.toml

Automated changes:
`arc lint --apply-patches --take LICENSELINT --paths-cmd 'hg files faiss'`

Reviewed By: asadoughi

Differential Revision: D64484165

fbshipit-source-id: 4f2f6e953c94ef6ebfea8a5ae035ccfbea65ed04
2024-10-22 09:46:48 -07:00

30 lines
1.0 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import time
import numpy as np
import faiss
if __name__ == "__main__":
faiss.omp_set_num_threads(1)
for d in 4, 8, 16, 13:
nq = 10000
nb = 30000
print('Bits per vector = 8 *', d)
xq = faiss.randint((nq, d // 4), seed=1234, vmax=256**4).view('uint8')
xb = faiss.randint((nb, d // 4), seed=1234, vmax=256**4).view('uint8')
for variant in "hc", "mc":
print(f"{variant=:}", end="\t")
for k in 1, 4, 16, 64, 256:
times = []
for _run in range(5):
t0 = time.time()
D, I = faiss.knn_hamming(xq, xb, k, variant=variant)
t1 = time.time()
times.append(t1 - t0)
print(f'| {k=:} t={np.mean(times):.3f} s ± {np.std(times):.3f} ', flush=True, end="")
print()