Module arms 

Portable vs host-ISA vs Silicera selection harness.

Identical inputs, sample counts, warmups, and improvement thresholds across three arms. The integer domain uses a real runtime AVX2 path when detected (HostIsaReduce); other domains still use algorithmic stand-ins. Separately compiled -march=native binaries remain a future comparison track.

Domains: integer, memory (multi size-class), float, branch, concurrency.

Structs

ArmResult

One arm result.

ArmsHarnessConfig

Shared harness knobs (must be identical across arms).

ArmsReport

Full three-arm report for one workload family.

HarnessSuiteReport

Aggregate harness run across domains.

Functions

run_branch_arms

Run branch-domain three-arm harness.

run_concurrency_arms

Run concurrency-domain three-arm harness.

run_domain_harness

Run harness for a domain: all|integer|memory|float|branch|concurrency.

run_float_arms

Run float-domain three-arm harness.

run_full_harness

Run both integer and memory harnesses (legacy).

run_integer_arms

Run integer-domain three-arm harness.

run_memory_arms

Run memory-domain three-arm harness (scan vs prefetch-friendly).

summarize_size_winner_changes

Summarize whether memory size-class winners differ across L1/L2/L3/DRAM.