graph import/export functions have been deleted

[rgerganov]

I need to use ggml_graph_export and ggml_graph_import but their implementation was deleted in commit 9d0762e. The function prototypes are still in ggml.h.

Were these functions deleted on purpose or accidentally?

[slaren]

It was removed intentionally, there was some discussion about it from #988 (comment).

[rgerganov]

OK, thanks. I am thinking on how to implement DNN filters for object detection and image processing in FFmpeg with ggml. IIUC, we need a mechanism for loading model weights + compute graph, set input, execute and get output. That's why I thought about using graph import/export.

I will try to build a PoC for my YOLO example in order to have some concrete requirements.

[ggerganov]

Yes, the import/export graph functionality, although very general, did not seem to have much practical use (apart from being difficult to maintain). You should be able to simply read gguf files and construct the graph based on the meta data in the header. Should be enough for this use case.