Summary:
If Predictor Exporter save_to_db is called in CUDAContext, a failure occurs since the following FeedBlob() tries to store a string (meta data), but for CUDA blobs we assume they are tensors.
+ fix a typo in data_parallel_model that I bumped on.
Reviewed By: asaadaldien
Differential Revision: D5099837
fbshipit-source-id: 69d01b35a9a1816bf083f13d8a6ce88e1f5aecb7
Summary: This is moving predictor exporter's code to open-source.
Differential Revision: D4815409
fbshipit-source-id: ce1508a2b6b973c91b0420928d2b4c3953f26e6c