Commit Graph

4 Commits

Author SHA1 Message Date
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
e1bed00cc4 feat(retrieval): add CAM retrieval benchmark with topk scoring and read noise support
- Add cocotb benchmark infrastructure under hw/sim/benchmarks/retrieval/ with Makefile
- Implement test_retrieval_benchmark.py supporting configurable topk-k, read/write noise
- Add cluster-based synthetic dataset generator with configurable bit-flip rates
- Add reference model functions: match_topk, match_topk_from_scores, score_rows_with_read_noise
- Add .justfile shortcuts: cam-test-retrieval-no-noise, cam-test-retrieval-read-noise
- Add TOPK_K to Verilator EXTRA_ARGS via cocotb-common.mk
- Add unit tests for topk sorting logic and stateful read-noise scoring
2026-05-22 19:04:54 +08:00
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
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