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Poseidon2 perf improvement #758

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@danny-shterman danny-shterman commented Feb 6, 2025

Poseidon2 CPU perf improvement by 17% for sponge and 10% for non-sponge.
Changes are only in CPU backend file and the tests file.

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cuda-backend-branch: danny/poseidon2_improvement1 # specify the branch here

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