8 Commits

Author	SHA1	Message	Date
SikongJueluo	97e53d44f8	feat(hw/sim): distinguish query-only and end-to-end performance cycles in retrieval benchmark ... Add explicit separation between query-only cycles (accept→last) and end-to-end cycles (load + write + noise + queries) in hardware retrieval benchmarks. - Add query_only_cycles_per_query, load_write_noise_cycles, end_to_end_cycles metrics - Refactor summarize_query_timings() to use accept_to_last_result_cycles as query-only base - Add build_hardware_performance() to compute end-to-end performance separately - Add current_sim_cycle() helper using cocotb get_sim_time - Update CSV/Markdown outputs and RETRIEVAL_PERF_RESULT log format - Update documentation to clarify cycle-counting methodology - Update tests to cover new performance measurement logic	2026-05-29 18:49:05 +08:00
SikongJueluo	42d4a9728d	feat: add hardware retrieval cycle performance measurement ... Add cycle-level performance measurement for hardware CAM retrieval benchmarks to complement existing quality metrics. - Add query_topk_once_with_latency with accept→first/last cycle timing - Add QueryTiming dataclass and summarize_query_timings helper - Integrate cycle performance into benchmark outputs (CSV + Markdown) - Log RETRIEVAL_PERF_RESULT with cycles/query and queries/cycle - Update experiment docs with hardware cycle performance section - Add unit tests for summarize_query_timings and output writers	2026-05-28 13:05:34 +08:00
SikongJueluo	d6e1b9d8ba	refactor(cam): rename read-noise path to read-pass-through and reorganize test module structure ... - Rename `read_noise` scenarios and noise_mode to `read_pass_through` across run_cam_correctness.py, test_run_cam_correctness.py, and Makefiles - Update RTL comment in match_engine_pipeline.sv to reflect pass-through behavior - Move unit-level cocotb tests from `tests.test_*` flat namespace to `tests.modules.*` and `tests.top.*` subdirectory layout, matching actual Makefile paths (hw/sim/tests/modules/..., hw/sim/tests/top/...) - Remove redundant dual-noise subtarget from read_noise/Makefile - Update help text and docs to reflect read-path pass-through semantics - Add .codegraph to .gitignore	2026-05-27 16:34:34 +08:00
SikongJueluo	8b4d4c1b57	refactor(cam): remove read noise from noise architecture (Phase 2) ... - Make cam_read_noise a pass-through module, removing all noise injection logic - Switch write noise to use noise_mask_bernoulli instead of noise_mask_grouped - Add state machine to cam_write_noise for mask generation timing - Remove noise_mask_grouped.sv (no longer needed) - Remove read noise parameters from cam_noisy and cam_top - Update simulation and benchmark code to reflect read noise removal - Sync documentation to reflect Phase 2 architecture	2026-05-26 23:45:52 +08:00
SikongJueluo	29f4cc91f6	fix(pipeline): add S_WAIT_READ_RESP state to fix read-noise PRNG timing ... - Emit rd_valid_o for exactly one combinational cycle before waiting for read response, ensuring the read-noise PRNG advances once per batch issue - Fix query handshake: wait for query_ready before asserting query_valid to avoid valid&&ready handshake drops on clock edges - Add dynamic timeout estimation in test utilities based on DUT parameters - Update test-top Makefile to run all noise configurations by default - Remove uv run prefix from cocotb-config Makefile invocation	2026-05-22 19:04:50 +08:00
SikongJueluo	424cf6e1d3	refactor(hw/sim): reorganize CAM top-level tests into per-noise-config suites ... Split the monolithic test_cam_basic.py into separate test suites organized by noise configuration (no_noise, write_noise, read_noise), with shared utilities extracted to tests/top/utils.py. - Remove test_cam_basic.py; add no_noise/, write_noise/, read_noise/ test suites with Makefiles that set noise parameters statically - Extract helpers (reset_dut, write_rows, query_once, collect_topk, etc.) into tests/top/utils.py - Update hw/sim/Makefile with per-config test targets and a test-top-all meta-target - Update scripts/run_cam_correctness.py to build per-directory instead of centrally, removing inline parameter overrides - Add __init__.py for result_serializer and topk_tracker module tests - Expand docstrings in test_ref_model_noise.py with architectural context and test rationale	2026-05-21 21:22:12 +08:00
SikongJueluo	e4cbb5e30d	feat(hw/rtl): implement full Top-K CAM search pipeline with serial result output ... - add TOPK_K, FIFO_DEPTH, RESULT_SERIAL parameters to cam_params - add candidate_fifo: synchronous ready/valid FIFO for (row, score) candidates - add topk_tracker: tracks top-K candidates with clear/ready handshake - add result_serializer: serializes packed Top-K array into rank-ordered stream - refactor match_engine_pipeline from 4-state to 8-state Top-K pipeline - extend cam_top with serial Top-K interface (result_rank/row/score/last) - add backward-compatible top1_index/top1_score aliases from rank-0 beat - add comprehensive tests for all new modules	2026-05-19 22:43:21 +08:00
SikongJueluo	ca167e79c6	refactor(hw/sim): extract common cocotb make infrastructure into shared mk/ directory ... - Split monolithic hw/sim/Makefile into modular include files (mk/cocotb-common.mk, mk/rtl-sources.mk) - Add per-module test Makefiles (cam_core_banked, cam_read_noise, cam_write_noise, match_engine_pipeline, perf, top) - Add missing simulation tools (yosys, graphviz, xdot) to devenv.nix - Fix path handling in sweep_noise.py and test modules to be HASH_BITS-aware	2026-05-16 19:24:17 +08:00