Windows Support?

[junha-l]

I see the number of PRs are merged to support Faiss on Windows

Is Faiss supported on Windows officially?

[mdouze]

Yes it is.
We don't have precompiled packages yet, so you'll have to compile it yourself.

[h-vetinari]

@mdouze, oooooh that's interesting re: conda-forge/faiss-split-feedstock#2. Is this something that applies to 1.6.3 already, or only to HEAD?

[mdouze]

We support conda packages for the pytorch channel. The conda-forge channel's packages do not work on windows yet AFAIK

[h-vetinari]

@mdouze
I was simply not aware that things had moved since you opened conda-forge/faiss-split-feedstock#2. There should be no fundamental problem to build for windows on conda-forge as well.

[hcji]

@mdouze I find there has not been a precompiled package on conda-forge for windows. Is there a guide for how to compile the source code for win?

[beauby]

@hcji There are pre-compiled nightly packages available on the pytorch channel (conda install -c pytorch/label/nightly faiss-cpu).

[hcji]

@beauby Thank you. But the GPU version is not ready?

[h-vetinari]

Restarted the conda-forge effort for windows under conda-forge/faiss-split-feedstock#17. With the build system changes from 1.6.3->1.6.4, it might still take a while, but should get there eventually.

[mdouze]

Windows is supported through anaconda now. closing.

[boluochuile]

@beauby That is great!

[h-vetinari]

Starting from today, there are now windows packages in conda-forge. Cuda support for windows is hopefully not far away either: conda-forge/faiss-split-feedstock#19.

Edit: this now needs conda-forge/faiss-split-feedstock#32 instead of conda-forge/faiss-split-feedstock#19

[alextaymx]

May I know the steps to install faiss-gpu using anaconda on windows?

[h-vetinari]

Faiss is not yet available with GPU on windows in conda-forge. It will be available once this PR is merged, but realistically, that will only happen when faiss itself officially supports it - there's ongoing work for this in #1610.

Once that feedstock PR is merged, you will be able to do:

conda install -c conda-forge faiss-gpu