Worked on the Purdue-SoCET/tensor-core repository, delivering six features and resolving two bugs over three months focused on CPU architecture and digital design. Developed and integrated branch prediction logic, including a branch predictor unit and branch handling overhaul, to improve pipeline efficiency and reduce misprediction impact. Enhanced verification infrastructure by building SystemVerilog testbenches and aligning interfaces, while maintaining code quality through disciplined version control and Makefile-driven builds. Refactored fetch and branch modules for maintainability, streamlined control flow, and addressed linting issues to keep CI clean. Utilized Verilog, SystemVerilog, and Makefile, emphasizing robust hardware verification and maintainable processor architecture.
March 2025 performance summary for Purdue-SoCET/tensor-core. Delivered key architectural and maintenance improvements: (1) BTB update gating and branch resolution enhancements to update only once per unique branch with gating via btb_updated, last_branch_PC tracking, and reset behavior to maintain BTB correctness across the FU and branch unit, boosting branch prediction reliability; (2) Fetch module interface cleanup and fetch control flow simplification to remove unused signals, streamline stall handling, and align the testbench with interface changes, improving maintainability and verification; (3) Lint/CI maintenance by removing outdated out.txt to eliminate Verilator lint warnings and keep CI clean. These changes reduce risk of mispredictions and stalls, improve testability, and contribute to a more robust, maintainable codebase.
March 2025 performance summary for Purdue-SoCET/tensor-core. Delivered key architectural and maintenance improvements: (1) BTB update gating and branch resolution enhancements to update only once per unique branch with gating via btb_updated, last_branch_PC tracking, and reset behavior to maintain BTB correctness across the FU and branch unit, boosting branch prediction reliability; (2) Fetch module interface cleanup and fetch control flow simplification to remove unused signals, streamline stall handling, and align the testbench with interface changes, improving maintainability and verification; (3) Lint/CI maintenance by removing outdated out.txt to eliminate Verilator lint warnings and keep CI clean. These changes reduce risk of mispredictions and stalls, improve testability, and contribute to a more robust, maintainable codebase.
February 2025: Delivered significant enhancements to Purdue-SoCET/tensor-core focused on branch handling and fetch-path robustness. Implemented a Branch Handling Overhaul with a refactored interface and testbench, and integrated a Branch Predictor with the fetch pipeline including misprediction handling and PC updates. Added unit tests and ensured clean imports to improve reliability and maintainability. These changes reduce the impact of branch mispredictions, accelerate the fetch/decode path, and improve overall pipeline efficiency.
February 2025: Delivered significant enhancements to Purdue-SoCET/tensor-core focused on branch handling and fetch-path robustness. Implemented a Branch Handling Overhaul with a refactored interface and testbench, and integrated a Branch Predictor with the fetch pipeline including misprediction handling and PC updates. Added unit tests and ensured clean imports to improve reliability and maintainability. These changes reduce the impact of branch mispredictions, accelerate the fetch/decode path, and improve overall pipeline efficiency.
January 2025 monthly summary for Purdue-SoCET/tensor-core. Delivered verification infrastructure and targeted feature work with a focus on business value and maintainability. Key outputs include an ALU SystemVerilog test bench with Makefile integration and interface alignment, a branch predictor unit (BPU) with enhanced branching logic and expanded test coverage (including BGEU scenarios), and a refactor that relocates predictor artifacts to a dedicated predictor branch to improve maintainability. Impact includes faster verification feedback, clearer ownership of predictor logic, and a cleaner codebase ready for future performance optimizations. Technologies demonstrated include SystemVerilog test benches, RTL verification, Makefile-driven builds, and disciplined version control.
January 2025 monthly summary for Purdue-SoCET/tensor-core. Delivered verification infrastructure and targeted feature work with a focus on business value and maintainability. Key outputs include an ALU SystemVerilog test bench with Makefile integration and interface alignment, a branch predictor unit (BPU) with enhanced branching logic and expanded test coverage (including BGEU scenarios), and a refactor that relocates predictor artifacts to a dedicated predictor branch to improve maintainability. Impact includes faster verification feedback, clearer ownership of predictor logic, and a cleaner codebase ready for future performance optimizations. Technologies demonstrated include SystemVerilog test benches, RTL verification, Makefile-driven builds, and disciplined version control.
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