beam search

[Oktai15]

According to README:

Currently, we export components (encoder, decoder) to Caffe2 separately and beam search is implemented in C++. In the near future, we will be able to export the beam search as well. We also plan to add export support to more models.

Where can I find this C++ code or exportable (jit) beam search already in repo?

[cndn]

Sorry README is out-of-date. We already have BeamSearch class fully scripted in ensemble_export.py. Also Pytorch->ONNX->Caffe2 export path as mentioned in README is not supported now. We are switching to TorchScript export so you can call save_to_pytorch() in BeamSearch class to get an exported model.

[Oktai15]

@cndn I see that pytorch-translate has version of BeamSearchV2 that have new improvements, but it doesn't support char source. Why?