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feat(retrieval): add CAM retrieval benchmark with topk scoring and read noise support

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- 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
This commit is contained in:
SikongJueluo
2026-05-22 19:01:43 +08:00
parent 29f4cc91f6
commit e1bed00cc4
8 changed files with 503 additions and 2 deletions
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hw/sim/mk/cocotb-common.mk
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@@ -24,8 +24,9 @@ TOPLEVEL_LANG ?= verilog
NUM_ROWS ?= 4096
HASH_BITS ?= 512
LANES ?= 8
TOPK_K ?= 4
EXTRA_ARGS += +define+NUM_ROWS=$(NUM_ROWS) +define+HASH_BITS=$(HASH_BITS) +define+LANES=$(LANES)
EXTRA_ARGS += +define+NUM_ROWS=$(NUM_ROWS) +define+HASH_BITS=$(HASH_BITS) +define+LANES=$(LANES) +define+TOPK_K=$(TOPK_K)
EXTRA_ARGS += --trace --trace-fst --trace-structs
COMPILE_ARGS += -Wall -Wno-fatal