faiss/contrib/ivf_tools.py
Matthijs Douze f2369fcc82 benchmark SSD IndexIVF
Summary: This is some code for benchmakring the SSD reads.

Reviewed By: MDSilber

Differential Revision: D24457715

fbshipit-source-id: 475668e4dc450dc4652ef8828111335c236bfa44
2020-10-21 18:21:39 -07:00

26 lines
871 B
Python

# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import numpy as np
import faiss
def get_invlist(invlists, l):
""" returns the inverted lists content. """
ls = invlists.list_size(l)
list_ids = np.zeros(ls, dtype='int64')
ids = codes = None
try:
ids = invlists.get_ids(l)
faiss.memcpy(faiss.swig_ptr(list_ids), ids, list_ids.nbytes)
codes = invlists.get_codes(l)
list_codes = np.zeros((ls, invlists.code_size), dtype='uint8')
faiss.memcpy(faiss.swig_ptr(list_codes), codes, list_codes.nbytes)
finally:
if ids is not None:
invlists.release_ids(l, ids)
if codes is not None:
invlists.release_codes(l, codes)
return list_ids, list_codes