Worked on the sarchlab/mgpusim repository to deliver Akita v4 compatibility and a comprehensive port API refactor. Focused on updating the simulator’s port creation to use sim.NewPort, replacing the previous sim.NewLimitNumMsgPort approach, and revised mocks and AsRemote interactions to align with the new API. Addressed dependency management by updating Go modules and resolved linting issues to ensure stable, clean builds. The work, implemented in Go, improved the simulator’s stability, testability, and forward compatibility, enabling Akita-based workloads to run smoothly with MGPU Simulator while reducing future maintenance overhead and streamlining the integration of new features.