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Revert D69984379: mem mapping and zero-copy python fixes

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Differential Revision:
D69984379

Original commit changeset: 9437b4ad92ef

Original Phabricator Diff: D69984379

fbshipit-source-id: 3cb921fa79b6f20b6455b17e50acc3cb96bcbe7b
This commit is contained in:
Saumya Agarwal 2025-03-11 11:43:17 -07:00 committed by Facebook GitHub Bot
parent 631b0fde4f
commit fbc7db2cce
8 changed files with 8 additions and 92 deletions
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11
faiss/impl/mapped_io.cpp
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@ -1,10 +1,3 @@
/*
* 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.
*/
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
@ -18,8 +11,8 @@
#elif defined(_WIN32) #elif defined(_WIN32)
#include <Windows.h> // @manual #include <Windows.h>
#include <io.h> // @manual #include <io.h>
#endif #endif

7
faiss/impl/mapped_io.h
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@ -1,10 +1,3 @@
/*
* 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.
*/
#pragma once #pragma once
#include <cstddef> #include <cstddef>

14
faiss/impl/maybe_owned_vector.h
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@ -1,10 +1,3 @@
/*
* 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.
*/
#pragma once #pragma once
#include <cstddef> #include <cstddef>
@ -57,13 +50,6 @@ struct MaybeOwnedVector {
c_size = owned_data.size(); c_size = owned_data.size();
} }
explicit MaybeOwnedVector(const std::vector<T>& vec)
: faiss::MaybeOwnedVector<T>(vec.size()) {
if (vec.size() > 0) {
memcpy(owned_data.data(), vec.data(), sizeof(T) * vec.size());
}
}
MaybeOwnedVector(const MaybeOwnedVector& other) { MaybeOwnedVector(const MaybeOwnedVector& other) {
is_owned = other.is_owned; is_owned = other.is_owned;
owned_data = other.owned_data; owned_data = other.owned_data;

10
faiss/impl/zerocopy_io.cpp
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@ -1,10 +1,3 @@
/*
* 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.
*/
#include <faiss/impl/zerocopy_io.h> #include <faiss/impl/zerocopy_io.h>
#include <cstring> #include <cstring>
@ -44,9 +37,6 @@ void ZeroCopyIOReader::reset() {
} }
size_t ZeroCopyIOReader::operator()(void* ptr, size_t size, size_t nitems) { size_t ZeroCopyIOReader::operator()(void* ptr, size_t size, size_t nitems) {
if (size * nitems == 0) {
return 0;
}
if (rp_ >= total_) { if (rp_ >= total_) {
return 0; return 0;
} }

7
faiss/impl/zerocopy_io.h
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@ -1,10 +1,3 @@
/*
* 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.
*/
#pragma once #pragma once
#include <cstdint> #include <cstdint>

1
faiss/python/swigfaiss.swig
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@ -32,7 +32,6 @@
#pragma SWIG nowarn=341 #pragma SWIG nowarn=341
#pragma SWIG nowarn=512 #pragma SWIG nowarn=512
#pragma SWIG nowarn=362 #pragma SWIG nowarn=362
#pragma SWIG nowarn=509
// we need explict control of these typedefs... // we need explict control of these typedefs...
// %include <stdint.i> // %include <stdint.i>

3
tests/test_fast_scan_ivf.py
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@ -270,9 +270,8 @@ class TestEquivPQ(unittest.TestCase):
index_pq = faiss.index_factory(32, "PQ16x4np") index_pq = faiss.index_factory(32, "PQ16x4np")
index_pq.pq = index.pq index_pq.pq = index.pq
index_pq.is_trained = True index_pq.is_trained = True
codevec = faiss.downcast_InvertedLists( index_pq.codes = faiss. downcast_InvertedLists(
index.invlists).codes.at(0) index.invlists).codes.at(0)
index_pq.codes = faiss.MaybeOwnedVectorUInt8(codevec)
index_pq.ntotal = index.ntotal index_pq.ntotal = index.ntotal
Dnew, Inew = index_pq.search(xq, 4) Dnew, Inew = index_pq.search(xq, 4)

37
tests/test_io.py
View File

@ -481,40 +481,3 @@ class TestIVFPQRead(unittest.TestCase):
finally: finally:
if os.path.exists(fname): if os.path.exists(fname):
os.unlink(fname) os.unlink(fname)
class TestIOFlatMMap(unittest.TestCase):
def test_mmap(self):
xt, xb, xq = get_dataset_2(32, 0, 100, 50)
index = faiss.index_factory(32, "SQfp16", faiss.METRIC_L2)
# does not need training
index.add(xb)
Dref, Iref = index.search(xq, 10)
fd, fname = tempfile.mkstemp()
os.close(fd)
try:
faiss.write_index(index, fname)
index2 = faiss.read_index(fname, faiss.IO_FLAG_MMAP_IFC)
Dnew, Inew = index2.search(xq, 10)
np.testing.assert_array_equal(Iref, Inew)
np.testing.assert_array_equal(Dref, Dnew)
finally:
if os.path.exists(fname):
os.unlink(fname)
def test_zerocopy(self):
xt, xb, xq = get_dataset_2(32, 0, 100, 50)
index = faiss.index_factory(32, "SQfp16", faiss.METRIC_L2)
# does not need training
index.add(xb)
Dref, Iref = index.search(xq, 10)
serialized_index = faiss.serialize_index(index)
reader = faiss.ZeroCopyIOReader(
faiss.swig_ptr(serialized_index), serialized_index.size)
index2 = faiss.read_index(reader)
Dnew, Inew = index2.search(xq, 10)
np.testing.assert_array_equal(Iref, Inew)
np.testing.assert_array_equal(Dref, Dnew)