Local build is 4x slower than faiss release

[b8188495]

Summary

I'm running the same benchmark on the same machine with a local build and the 1.8.0 release build. The local build is about 4x slower than the release. Can you share the build flags for a release so I can try it out with a local build?

My local build was created with the following commands on an AWS Graviton box (aarch64):

cmake -B build . -DFAISS_ENABLE_GPU=OFF -DFAISS_ENABLE_PYTHON=ON
make -C build -j faiss
make -C build -j swigfaiss
(cd build/faiss/python && python setup.py install)
(cd build/faiss/python && python setup.py build)

Platform

OS: Ubuntu 20

Faiss version: dafdff1

Installed from: compiled locally

Faiss compilation options:
cmake -B build . -DFAISS_ENABLE_GPU=OFF -DFAISS_ENABLE_PYTHON=ON

Running on:

• CPU
• GPU

Interface:

• C++
• Python

Reproduction instructions

[alexanderguzhva]

-DCMAKE_BUILD_TYPE=Release is missing in cmake command line.
Faiss builds the debug build by default