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eff0898a13
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
46 lines
1.1 KiB
Python
46 lines
1.1 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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from __future__ import print_function
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import sys
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import time
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import numpy as np
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def ivecs_read(fname):
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a = np.fromfile(fname, dtype='int32')
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d = a[0]
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return a.reshape(-1, d + 1)[:, 1:].copy()
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def fvecs_read(fname):
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return ivecs_read(fname).view('float32')
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def load_sift1M():
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print("Loading sift1M...", end='', file=sys.stderr)
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xt = fvecs_read("sift1M/sift_learn.fvecs")
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xb = fvecs_read("sift1M/sift_base.fvecs")
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xq = fvecs_read("sift1M/sift_query.fvecs")
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gt = ivecs_read("sift1M/sift_groundtruth.ivecs")
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print("done", file=sys.stderr)
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return xb, xq, xt, gt
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def evaluate(index, xq, gt, k):
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nq = xq.shape[0]
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t0 = time.time()
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D, I = index.search(xq, k) # noqa: E741
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t1 = time.time()
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recalls = {}
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i = 1
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while i <= k:
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recalls[i] = (I[:, :i] == gt[:, :1]).sum() / float(nq)
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i *= 10
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return (t1 - t0) * 1000.0 / nq, recalls
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