9 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	715a2c2ed6	feat(architecture): add CAM hardware block design diagram ... - Add docs/architecture/cam_hardware_block_design.drawio - Diagram illustrates CAM top-level architecture including: - Host write path with write-priority half-duplex arbiter - Write noise injector with Bernoulli flip mask - Banked CAM storage (8 BRAM banks × 512 depth) - 8-lane match engine pipeline with popcount - Top-K tracker and result serializer - Supports documentation for 4096-row × 512-bit hash CAM design	2026-05-28 12:09:26 +08:00
SikongJueluo	acf0c75132	feat(benchmark): add software CAM retrieval benchmark ... Add software-based CAM retrieval benchmark to compare retrieval quality and speed against hardware simulation. Includes experiment documentation with noise sweep analysis on CIFAR-10/100 datasets. - Add sw_retrieval_benchmark.py for software Hamming distance Top-K retrieval - Add test_sw_retrieval_benchmark.py with unit tests for dataset loading and metrics - Add experiment doc (sw_hw_cam_retrieval_benchmark.md) comparing software vs hardware - Document noise sweep impact on retrieval quality at various WRITE_NOISE_RATE values	2026-05-27 19:52:14 +08:00
SikongJueluo	7cb6257531	feat(benchmarks): add noise injection experiment support to CAM retrieval benchmark ... - Remove hard assertion blocking WRITE_NOISE_EN=1 in retrieval benchmark tests - Add conditional exact_match assertion: enforces 100% when noise=off, skips when noise=on - New script run_retrieval_noise_sweep.py: sweeps noise 0–100% (step 10%) and produces markdown summary - Add just recipes: cam-benchmark-retrieval-sweep, cam-benchmark-sweep-cifar10, cam-benchmark-sweep-cifar100 - Add rsync-based remote sync commands for outputs and docs	2026-05-27 19:04:25 +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	0fbcd915bd	refactor: reorganize RTL files into core/noise subdirectories ... - Move CAM core modules (cam_core_banked, match_engine_pipeline, popcount_pipeline) to hw/rtl/core/ - Move noise modules (cam_read_noise, cam_write_noise, noise_mask_grouped) to hw/rtl/noise/ - Update Makefile include paths and VERILOG_SOURCES to reflect new layout - Update docs/experiments.md file path references - Add sim/results.xml to .gitignore - Bump devenv.lock dependencies	2026-05-14 20:59:46 +08:00
SikongJueluo	443edbfa25	docs: add experiments feasibility survey for paper sections 6.2–6.8	2026-05-13 20:03:58 +08:00