DataIntelligenceCrew
Fail to use this library
Hi,
I am trying to run the example, but when I run go get github.com/DataIntelligenceCrew/go-faiss it shows:
# github.com/DataIntelligenceCrew/go-faiss
../../autotune.go:12:6: could not determine kind of name for C.FaissParameterSpace
../../autotune.go:39:2: could not determine kind of name for C.faiss_ParameterSpace_free
../../autotune.go:18:10: could not determine kind of name for C.faiss_ParameterSpace_new
../../autotune.go:29:7: could not determine kind of name for C.faiss_ParameterSpace_set_index_parameter
../../autotune.go:27:8: could not determine kind of name for C.free
I use local Mac env, and I have copy libfaiss_c.so to /usr/local/lib/
By any chance you know the reason? Thanks!
Just tried again, the error becomes:
# github.com/DataIntelligenceCrew/go-faiss
./autotune.go:5:10: fatal error: 'faiss/c_api/AutoTune_c.h' file not found
#include <faiss/c_api/AutoTune_c.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
Did you install the header files? If you did but they aren't being found, you can set the environment variable CGO_CFLAGS to -I <path_to_include_dir>.
Do I need to install the header files? I thought just copy libfaiss_c.so to /usr/local/lib/ is enough.
How should I install this faiss/c_api/AutoTune_c.h header file?
Yes, CGO needs the header files. They should be installed if you use make install after you compile faiss. You can use the cmake option -DCMAKE_INSTALL_PREFIX= to set the install location.
When I run the make -C build install command after make -C build -j faiss, it shows:
(base) qi@Tians-MacBook-Pro faiss % make -C build install
[ 61%] Built target faiss
[ 62%] Built target swigfaiss_swig_compilation
[ 64%] Linking CXX shared library libfaiss_python_callbacks.dylib
Undefined symbols for architecture x86_64:
"_PyGILState_Ensure", referenced from:
(anonymous namespace)::PyThreadLock::PyThreadLock() in python_callbacks.cpp.o
"_PyGILState_Release", referenced from:
(anonymous namespace)::PyThreadLock::~PyThreadLock() in python_callbacks.cpp.o
"_PyObject_CallFunction", referenced from:
PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o
PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o
"_PyString_AsString", referenced from:
PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o
"_PyString_FromStringAndSize", referenced from:
PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o
"_PyString_Size", referenced from:
PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o
"faiss::FaissException::FaissException(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, char const*, char const*, int)", referenced from:
PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o
PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o
"faiss::IOReader::fileno()", referenced from:
vtable for PyCallbackIOReader in python_callbacks.cpp.o
"faiss::IOWriter::fileno()", referenced from:
vtable for PyCallbackIOWriter in python_callbacks.cpp.o
"typeinfo for faiss::FaissException", referenced from:
PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o
PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o
"typeinfo for faiss::IOReader", referenced from:
typeinfo for PyCallbackIOReader in python_callbacks.cpp.o
"typeinfo for faiss::IOWriter", referenced from:
typeinfo for PyCallbackIOWriter in python_callbacks.cpp.o
"vtable for faiss::FaissException", referenced from:
faiss::FaissException::~FaissException() in python_callbacks.cpp.o
NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
"vtable for faiss::IOReader", referenced from:
faiss::IOReader::IOReader() in python_callbacks.cpp.o
faiss::IOReader::~IOReader() in python_callbacks.cpp.o
NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
"vtable for faiss::IOWriter", referenced from:
faiss::IOWriter::IOWriter() in python_callbacks.cpp.o
faiss::IOWriter::~IOWriter() in python_callbacks.cpp.o
NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [faiss/python/libfaiss_python_callbacks.dylib] Error 1
make[1]: *** [faiss/python/CMakeFiles/faiss_python_callbacks.dir/all] Error 2
make: *** [all] Error 2
Maybe this is why it didn't install the header files....By any chance you know the reason?...
Try make -C install without the build. It looks like it's trying to build
the python bindings.
On Thu, Jun 17, 2021, 7:57 PM xiaomai @.***> wrote:
When I run the make -C build install command after make -C build -j faiss, it shows:
(base) qi@Tians-MacBook-Pro faiss % make -C build install [ 61%] Built target faiss [ 62%] Built target swigfaiss_swig_compilation [ 64%] Linking CXX shared library libfaiss_python_callbacks.dylib Undefined symbols for architecture x86_64: "_PyGILState_Ensure", referenced from: (anonymous namespace)::PyThreadLock::PyThreadLock() in python_callbacks.cpp.o "_PyGILState_Release", referenced from: (anonymous namespace)::PyThreadLock::~PyThreadLock() in python_callbacks.cpp.o "_PyObject_CallFunction", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_AsString", referenced from: PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_FromStringAndSize", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_Size", referenced from: PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "faiss::FaissException::FaissException(std::__1::basic_string<char, std::__1::char_traits
, std::__1::allocator > const&, char const*, char const*, int)", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "faiss::IOReader::fileno()", referenced from: vtable for PyCallbackIOReader in python_callbacks.cpp.o "faiss::IOWriter::fileno()", referenced from: vtable for PyCallbackIOWriter in python_callbacks.cpp.o "typeinfo for faiss::FaissException", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "typeinfo for faiss::IOReader", referenced from: typeinfo for PyCallbackIOReader in python_callbacks.cpp.o "typeinfo for faiss::IOWriter", referenced from: typeinfo for PyCallbackIOWriter in python_callbacks.cpp.o "vtable for faiss::FaissException", referenced from: faiss::FaissException::~FaissException() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for faiss::IOReader", referenced from: faiss::IOReader::IOReader() in python_callbacks.cpp.o faiss::IOReader::~IOReader() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for faiss::IOWriter", referenced from: faiss::IOWriter::IOWriter() in python_callbacks.cpp.o faiss::IOWriter::~IOWriter() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [faiss/python/libfaiss_python_callbacks.dylib] Error 1 make[1]: *** [faiss/python/CMakeFiles/faiss_python_callbacks.dir/all] Error 2 make: *** [all] Error 2 Maybe this is why it didn't install the header files....By any chance you know the reason?...
— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/DataIntelligenceCrew/go-faiss/issues/7#issuecomment-863633536, or unsubscribe https://github.com/notifications/unsubscribe-auth/AFB5PWNXY7VKUHVKNB62LUDTTKDXFANCNFSM464RNCOQ .
Sorry, that command is wrong. You may need to pass the cmake option to disable building the python bindings.
On Thu, Jun 17, 2021, 9:11 PM Paul Ouellette @.***> wrote:
Try
make -C installwithout the build. It looks like it's trying to build the python bindings.On Thu, Jun 17, 2021, 7:57 PM xiaomai @.***> wrote:
When I run the make -C build install command after make -C build -j faiss, it shows:
(base) qi@Tians-MacBook-Pro faiss % make -C build install [ 61%] Built target faiss [ 62%] Built target swigfaiss_swig_compilation [ 64%] Linking CXX shared library libfaiss_python_callbacks.dylib Undefined symbols for architecture x86_64: "_PyGILState_Ensure", referenced from: (anonymous namespace)::PyThreadLock::PyThreadLock() in python_callbacks.cpp.o "_PyGILState_Release", referenced from: (anonymous namespace)::PyThreadLock::~PyThreadLock() in python_callbacks.cpp.o "_PyObject_CallFunction", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_AsString", referenced from: PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_FromStringAndSize", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o "_PyString_Size", referenced from: PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "faiss::FaissException::FaissException(std::__1::basic_string<char, std::__1::char_traits
, std::__1::allocator > const&, char const*, char const*, int)", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "faiss::IOReader::fileno()", referenced from: vtable for PyCallbackIOReader in python_callbacks.cpp.o "faiss::IOWriter::fileno()", referenced from: vtable for PyCallbackIOWriter in python_callbacks.cpp.o "typeinfo for faiss::FaissException", referenced from: PyCallbackIOWriter::operator()(void const*, unsigned long, unsigned long) in python_callbacks.cpp.o PyCallbackIOReader::operator()(void*, unsigned long, unsigned long) in python_callbacks.cpp.o "typeinfo for faiss::IOReader", referenced from: typeinfo for PyCallbackIOReader in python_callbacks.cpp.o "typeinfo for faiss::IOWriter", referenced from: typeinfo for PyCallbackIOWriter in python_callbacks.cpp.o "vtable for faiss::FaissException", referenced from: faiss::FaissException::~FaissException() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for faiss::IOReader", referenced from: faiss::IOReader::IOReader() in python_callbacks.cpp.o faiss::IOReader::~IOReader() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for faiss::IOWriter", referenced from: faiss::IOWriter::IOWriter() in python_callbacks.cpp.o faiss::IOWriter::~IOWriter() in python_callbacks.cpp.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [faiss/python/libfaiss_python_callbacks.dylib] Error 1 make[1]: *** [faiss/python/CMakeFiles/faiss_python_callbacks.dir/all] Error 2 make: *** [all] Error 2 Maybe this is why it didn't install the header files....By any chance you know the reason?...
— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/DataIntelligenceCrew/go-faiss/issues/7#issuecomment-863633536, or unsubscribe https://github.com/notifications/unsubscribe-auth/AFB5PWNXY7VKUHVKNB62LUDTTKDXFANCNFSM464RNCOQ .
Oh, it works! But I can not find the libfaiss.so after the build...It is not in the /build/c_api or /build/lib
Currently make -C build install shows:
(base) qi@Tians-MacBook-Pro faiss % make -C build install
[ 64%] Built target faiss
[ 81%] Built target faiss_c
[ 83%] Built target gtest
[ 85%] Built target gtest_main
[100%] Built target faiss_test
Install the project...
-- Install configuration: ""
-- Up-to-date: /usr/local/lib/libfaiss.dylib
-- Up-to-date: /usr/local/include/faiss/AutoTune.h
-- Up-to-date: /usr/local/include/faiss/Clustering.h
-- Up-to-date: /usr/local/include/faiss/IVFlib.h
-- Up-to-date: /usr/local/include/faiss/Index.h
-- Up-to-date: /usr/local/include/faiss/Index2Layer.h
-- Up-to-date: /usr/local/include/faiss/IndexBinary.h
-- Up-to-date: /usr/local/include/faiss/IndexBinaryFlat.h
-- Up-to-date: /usr/local/include/faiss/IndexBinaryFromFloat.h
-- Up-to-date: /usr/local/include/faiss/IndexBinaryHNSW.h
-- Up-to-date: /usr/local/include/faiss/IndexBinaryHash.h
-- Up-to-date: /usr/local/include/faiss/IndexBinaryIVF.h
-- Up-to-date: /usr/local/include/faiss/IndexFlat.h
-- Up-to-date: /usr/local/include/faiss/IndexHNSW.h
-- Up-to-date: /usr/local/include/faiss/IndexIVF.h
-- Up-to-date: /usr/local/include/faiss/IndexIVFFlat.h
-- Up-to-date: /usr/local/include/faiss/IndexIVFPQ.h
-- Up-to-date: /usr/local/include/faiss/IndexIVFPQFastScan.h
-- Up-to-date: /usr/local/include/faiss/IndexIVFPQR.h
-- Up-to-date: /usr/local/include/faiss/IndexIVFSpectralHash.h
-- Up-to-date: /usr/local/include/faiss/IndexLSH.h
-- Up-to-date: /usr/local/include/faiss/IndexLattice.h
-- Up-to-date: /usr/local/include/faiss/IndexNNDescent.h
-- Up-to-date: /usr/local/include/faiss/IndexNSG.h
-- Up-to-date: /usr/local/include/faiss/IndexPQ.h
-- Up-to-date: /usr/local/include/faiss/IndexPQFastScan.h
-- Up-to-date: /usr/local/include/faiss/IndexPreTransform.h
-- Up-to-date: /usr/local/include/faiss/IndexRefine.h
-- Up-to-date: /usr/local/include/faiss/IndexReplicas.h
-- Up-to-date: /usr/local/include/faiss/IndexResidual.h
-- Up-to-date: /usr/local/include/faiss/IndexScalarQuantizer.h
-- Up-to-date: /usr/local/include/faiss/IndexShards.h
-- Up-to-date: /usr/local/include/faiss/MatrixStats.h
-- Up-to-date: /usr/local/include/faiss/MetaIndexes.h
-- Up-to-date: /usr/local/include/faiss/MetricType.h
-- Up-to-date: /usr/local/include/faiss/VectorTransform.h
-- Up-to-date: /usr/local/include/faiss/clone_index.h
-- Up-to-date: /usr/local/include/faiss/index_factory.h
-- Up-to-date: /usr/local/include/faiss/index_io.h
-- Up-to-date: /usr/local/include/faiss/impl/AdditiveQuantizer.h
-- Up-to-date: /usr/local/include/faiss/impl/AuxIndexStructures.h
-- Up-to-date: /usr/local/include/faiss/impl/FaissAssert.h
-- Up-to-date: /usr/local/include/faiss/impl/FaissException.h
-- Up-to-date: /usr/local/include/faiss/impl/HNSW.h
-- Up-to-date: /usr/local/include/faiss/impl/LocalSearchQuantizer.h
-- Up-to-date: /usr/local/include/faiss/impl/NNDescent.h
-- Up-to-date: /usr/local/include/faiss/impl/NSG.h
-- Up-to-date: /usr/local/include/faiss/impl/PolysemousTraining.h
-- Up-to-date: /usr/local/include/faiss/impl/ProductQuantizer-inl.h
-- Up-to-date: /usr/local/include/faiss/impl/ProductQuantizer.h
-- Up-to-date: /usr/local/include/faiss/impl/ResidualQuantizer.h
-- Up-to-date: /usr/local/include/faiss/impl/ResultHandler.h
-- Up-to-date: /usr/local/include/faiss/impl/ScalarQuantizer.h
-- Up-to-date: /usr/local/include/faiss/impl/ThreadedIndex-inl.h
-- Up-to-date: /usr/local/include/faiss/impl/ThreadedIndex.h
-- Up-to-date: /usr/local/include/faiss/impl/io.h
-- Up-to-date: /usr/local/include/faiss/impl/io_macros.h
-- Up-to-date: /usr/local/include/faiss/impl/lattice_Zn.h
-- Up-to-date: /usr/local/include/faiss/impl/platform_macros.h
-- Up-to-date: /usr/local/include/faiss/impl/pq4_fast_scan.h
-- Up-to-date: /usr/local/include/faiss/impl/simd_result_handlers.h
-- Up-to-date: /usr/local/include/faiss/invlists/BlockInvertedLists.h
-- Up-to-date: /usr/local/include/faiss/invlists/DirectMap.h
-- Up-to-date: /usr/local/include/faiss/invlists/InvertedLists.h
-- Up-to-date: /usr/local/include/faiss/invlists/InvertedListsIOHook.h
-- Up-to-date: /usr/local/include/faiss/utils/AlignedTable.h
-- Up-to-date: /usr/local/include/faiss/utils/Heap.h
-- Up-to-date: /usr/local/include/faiss/utils/WorkerThread.h
-- Up-to-date: /usr/local/include/faiss/utils/distances.h
-- Up-to-date: /usr/local/include/faiss/utils/extra_distances-inl.h
-- Up-to-date: /usr/local/include/faiss/utils/extra_distances.h
-- Up-to-date: /usr/local/include/faiss/utils/hamming-inl.h
-- Up-to-date: /usr/local/include/faiss/utils/hamming.h
-- Up-to-date: /usr/local/include/faiss/utils/ordered_key_value.h
-- Up-to-date: /usr/local/include/faiss/utils/partitioning.h
-- Up-to-date: /usr/local/include/faiss/utils/quantize_lut.h
-- Up-to-date: /usr/local/include/faiss/utils/random.h
-- Up-to-date: /usr/local/include/faiss/utils/simdlib.h
-- Up-to-date: /usr/local/include/faiss/utils/simdlib_avx2.h
-- Up-to-date: /usr/local/include/faiss/utils/simdlib_emulated.h
-- Up-to-date: /usr/local/include/faiss/utils/simdlib_neon.h
-- Up-to-date: /usr/local/include/faiss/utils/utils.h
-- Up-to-date: /usr/local/include/faiss/invlists/OnDiskInvertedLists.h
-- Up-to-date: /usr/local/share/faiss/faiss-config.cmake
-- Up-to-date: /usr/local/share/faiss/faiss-config-version.cmake
-- Up-to-date: /usr/local/share/faiss/faiss-targets.cmake
-- Up-to-date: /usr/local/share/faiss/faiss-targets-noconfig.cmake
-- Up-to-date: /usr/local/include/faiss/c_api/AutoTune_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/Clustering_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexFlat_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexIVFFlat_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexIVF_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexLSH_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexPreTransform_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexScalarQuantizer_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/IndexShards_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/Index_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/MetaIndexes_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/VectorTransform_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/clone_index_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/error_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/error_impl.h
-- Up-to-date: /usr/local/include/faiss/c_api/faiss_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/impl/AuxIndexStructures_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/index_factory_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/index_io_c.h
-- Up-to-date: /usr/local/include/faiss/c_api/macros_impl.h
-- Up-to-date: /usr/local/include/faiss/c_api/utils/distances_c.h
No, I can only find libfaiss.dylib, I searched all files in faiss, and there is no libfaiss.so...
Do you have libfaiss_c.so in build/c_api? If not, you could try building again with -DFAISS_ENABLE_PYTHON=OFF passed to cmake. You got the same error as https://github.com/DataIntelligenceCrew/go-faiss/issues/5.
Yes, I tried again, my commands are:
cmake -B build -DFAISS_ENABLE_GPU=OFF -DFAISS_ENABLE_PYTHON=OFF -DFAISS_ENABLE_C_API=ON -DBUILD_SHARED_LIBS=ON .
make -C build
make -C build install
But still no libfaiss.so in build...
Oh I think MacOS uses .dylib instead of .so. It should work with the dylib.
Yes, but when I run go get github.com/DataIntelligenceCrew/go-faiss, it shows:
# github.com/DataIntelligenceCrew/go-faiss
ld: library not found for -lfaiss_c
clang: error: linker command failed with exit code 1 (use -v to see invocation)
And libfaiss.dylib is already in the /usr/local/lib
The error indicates that it can't find libfaiss_c, not libfaiss. Also /usr/local/lib might not be searched. You could try installing the library in /usr/lib instead or adding /usr/local/lib to DYLD_LIBRARY_PATH. I don't use MacOS so I'm not sure.
I had same issue you need just copy libfaiss_c.dylib to /usr/local/lib. sudo cp build/c_api/libfaiss_c.dylib /usr/local/lib/libfaiss_c.dylib
After that everything worked fine.
In total on MacOs I made this steps: git clone -b v1.7.2 https://github.com/facebookresearch/faiss.git cd faiss export CMAKE_PREFIX_PATH=/opt/homebrew/opt/openblas:/opt/homebrew/opt/libomp:/opt/homebrew cmake -B build -DFAISS_ENABLE_GPU=OFF -DFAISS_ENABLE_C_API=ON -DBUILD_SHARED_LIBS=ON -DFAISS_ENABLE_PYTHON=OFF . make -C build sudo make -C build install sudo cp build/c_api/libfaiss_c.dylib /usr/local/lib/libfaiss_c.dylib
ive tried to install go-faiss using instructions above , despite I've got the same error.
Adding export CGO_CFLAGS="-I /usr/local/include" to my bash profile solved problem.
PS After i have another one error, solved by export LIBRARY_PATH=${LIBRARY_PATH}:/usr/local/lib
PSS in the begging I have to switch 1.7.2 -> 1.7.3
I had same issue you need just copy libfaiss_c.dylib to /usr/local/lib. sudo cp build/c_api/libfaiss_c.dylib /usr/local/lib/libfaiss_c.dylib
After that everything worked fine.
In total on MacOs I made this steps: git clone -b v1.7.2 https://github.com/facebookresearch/faiss.git cd faiss export CMAKE_PREFIX_PATH=/opt/homebrew/opt/openblas:/opt/homebrew/opt/libomp:/opt/homebrew cmake -B build -DFAISS_ENABLE_GPU=OFF -DFAISS_ENABLE_C_API=ON -DBUILD_SHARED_LIBS=ON -DFAISS_ENABLE_PYTHON=OFF . make -C build sudo make -C build install sudo cp build/c_api/libfaiss_c.dylib /usr/local/lib/libfaiss_c.dylib
You are a lifesaver lol
