Adds benches/compare_profile.rs: a gungraun library_benchmark that runs
the entire `compare` workload once at seed 0 under callgrind. It path-
includes the shared examples/_shared/compare_workload.rs module and calls
the new profile_workload() entry point, which invokes all 82 algorithm
runners and folds every result into a checksum so nothing is elided.
gungraun reports the whole-program instruction count and diffs it against
the previous run; the saved callgrind.out
(target/gungraun/heuropt/compare_profile/.../callgrind.full_compare_workload.out)
carries the per-function breakdown for callgrind_annotate. This is the
measurement harness for the function-level optimization campaign.
Round-0 baseline: 357,060,633,544 Ir. The shared module also carries the
example's presentation layer, so the bench gets a commented
`#![allow(dead_code)]` -- but the runner functions are deliberately not
allow-listed, so a runner missing from profile_workload still warns (that
check already caught one omission).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Moves the problem definitions, the ~88 algorithm runners, and the
table-printing presentation out of examples/compare.rs into
examples/_shared/compare_workload.rs (path-included as `mod workload`).
examples/compare.rs is now a thin shim that calls `workload::run_all()`.
This makes the exact `compare` workload reusable: an upcoming gungraun
profiling benchmark (benches/compare_profile.rs) path-includes the same
module and drives the runner functions directly, so it exercises
identical code with no duplication. `examples/_shared/` has no `main.rs`,
so cargo does not auto-discover it as an example.
Pure reorganization: `cargo run --release --example compare` produces
identical output (every quality metric, front size, and row order
unchanged; only the non-deterministic wall-clock `ms` column jitters).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
swaitsandClaude Opus 4.7