EPIC: Compiler Optimization

[mgkwill]

User story

As a user, I want a compiler that is performant so that large compilations are completed quickly, and compilation speed allows for very large chip and neuron compilations to be completed.

Conditions of satisfaction

• RegViews are investigated to see if they are released between partitions and garbage collected by Python https://github.com/lava-nc/lava/issues/694
• If needed, based on the RegViews investigation, a RegView Manager is created to re-use RegViews on partitions that have converged instead of instead of repartition said layers https://github.com/lava-nc/lava/issues/695
• Investigate RegView reuse in cases where the layer has not converged and come up with an algorithm to increase perf
• Investigate further paths to speed up compiler speed and efficiency

Acceptance tests

• Benchmarking for feed_forward compilation shows a significant speedup on 10 layer network.