What is the difference between a graph and a circuit about concrete-ml HOT 4 CLOSED

Graph is for representing computation (e.g., a graph can represent (x * 2) + y).
Circuit is the result of compilation.

We convert Python functions to graphs, and then graphs to MLIR. We give the MLIR to our compiler, compiler compiles the code into a native binary, and gives back a circuit that contains that native binary. And we use circuits for encryption, running, etc.

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Thanks，I have one more question，How is graph evaluation and noise simulation implemented in fhe_simulation_inference function？

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Hello @maxwellgodv and sorry for the late answer, most of our team was off for the past days ! You can find more information about the simulation process in Concrete's documentation. However, Concrete-ML does not use Concrete's latest simulation version yet (it will soon). This means that currently, simulation is basically still walking through the graph and adding random noise when needed. Here's a similar answer from @umut-sahin.

Hope this helps !

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Hello @maxwellgodv, if you think we successfully answered your question, feel free to close this issue !

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