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Concrete analyzes all compiled circuits and calculates some statistics. These statistics can be used to find bottlenecks and compare circuits. Statistics are calculated in terms of basic operations. There are 6 basic operations in Concrete:
clear addition: x + y where x is encrypted and y is clear
encrypted addition: x + y where both x and y are encrypted
clear multiplication: x * y where x is encrypted and y is clear
encrypted negation: -x where x is encrypted
key switch: building block for table lookups
packing key switch: building block for table lookups
programmable bootstrapping: building block for table lookups
You can print all statistics using show_statistics configuration option:
This code will print:
Each of these properties can be directly accessed on the circuit (e.g., circuit.programmable_bootstrap_count).
Imagine you have a neural network with 10 layers, each of them tagged. You can easily see the amount of additions and multiplications required for matrix multiplications per layer:
Circuit analysis also considers !