mk-61 edited a comment on issue #16173: Saving and loading cudNN autotune and graph optimization URL: https://github.com/apache/incubator-mxnet/issues/16173#issuecomment-598392266 How about adding a method to Symbol, to calculate certain aspects of a model? In C API it would look something like: `int MXCalculateDigest(SymbolHandle handle, /* type TBD * / selector)?` It would calculate a hash of - MXNet version - model structure - attributes, filtered by the selector argument - anything else? Then any library / optimizer would call it, add some other, optimization-specific details (CUDA version, hardware details, it's own library version, etc.) and would make a decision on whether to use some saved optimization result or perform a new optimization step? I can imagine it can save it as a graph attribute, for instance. It will save us from piping through a centralized API particulars of specific libraries / optimisations, and will give more control to optimisers, who will decide, which aspects are relevant to them and which are not.
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