Faiss: FAISS on Raspberry Pi

[sharma-n]

Summary

Installing FAISS for python (from source) on raspberry pi throws an error:
Makefile:22: recipe for target 'swigfaiss.o' failed
The above error is thrown after a long list of errors, the first of which is:
swigfaiss.cpp:3348:3: error: #error "SWIG wrapped code invalid in 32 bit architecture, regenerate code using -DSWIGWORDSIZE32"
I have also attached the complete log.txt.

Any help would be appreciated.

Platform

Raspberry Pi 3B+

OS: Raspbian

Running on:

• [x] CPU
• [ ] GPU

Interface:

• [ ] C++
• [x] Python

Reproduction instructions

1. Configured FAISS by ./configure --without-cuda (configuration file successfully recognizes python)
2. Compiled and installed using: make -j4 & make install (Successfully compiles and installs)
3. Try to install python wrapper using: make -C python (throws error)

[mdouze]

I am quite pessimistic about the possibility to compile with a 32 bit arch. Can you compile with -m64 ?

[sharma-n]

Trying to do make -C python -m 64 end up giving make: *** No rule to make target '64'. Stop.

Any idea of what kind of changes I would need to do to make it work with 32 bit arch? What does the regenerate code using -DSWIGWORDSIZE32 refer to?

[mdouze]

SWIGWORDSIZE32 is probably a flag needed for SWIG.

My point is that it might be easier to set up a compile chain in 64 bits than to port Faiss to 32 bits.

[JinHai-CN]

We compiled successfully on 64-bit Linux on Raspberry Pi.

[mdouze]

If you feel like it, please share as much info as possible here on how to compile for Raspberry Pi.

[lucmos]

I'm hitting the same error when trying to install faiss on a raspberry pi, with armv7l
Do you have any news on this?

[JinHai-CN]

We compiled FAISS successfully on Raspberry Pi 4B and integrated it into Milvus: https://github.com/milvus-io/milvus/tree/aarch64

Platform information:
CPU: Cortex-A72(armv8).
OS: Ubuntu 18.04

Main change is about compiling option.

Detailed change please refer to: https://github.com/milvus-io/milvus/commit/651b1224ae293262782b3e4a29418952baa135e9
FAISS located under directory: core/src/index/thirdparty/faiss

[mdouze]

Excellent! Thanks.
Closing issue.

[openhisilicon]

Hi, Can't Faiss run on 32-bit ARMV7?