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6e5a865 b44f7a8 6e5a865 b44f7a8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | """Backward-compatible decoder API — full SWIPER-SIM behavioral model (Li & Martonosi).
Lightweight Python reimplementation of jviszlai/swiper manager behaviors (ISCA 2025).
"""
from __future__ import annotations
from typing import Any
from core.schedule import default_three_t_injection
from core.swiper_sim import SwiperConfig, compare_speculative_modes, run_swiper_simulation
def compare_decoders(**kwargs: Any) -> dict[str, Any]:
"""Compare speculative vs non-speculative modes (legacy name)."""
schedule = kwargs.pop("schedule", None) or default_three_t_injection()
config = SwiperConfig(
processor_count=int(kwargs.get("processor_count", 4)),
cycle_time_us=float(kwargs.get("cycle_time_us", 1.0)),
speculation_accuracy=float(kwargs.get("speculation_accuracy", 0.9)),
decoder_latency_rounds=int(kwargs.get("decoder_latency_rounds", 2)),
ordering_strategy=str(kwargs.get("ordering_strategy", "shallow_first")),
seed=int(kwargs.get("seed", 42)),
)
comp = compare_speculative_modes(schedule, config)
return {
"speculative": comp["speculative"],
"naive": comp["non_speculative"],
"wait_reduction": comp["cond_wait_reduction"],
"success_delta": 0.0,
}
def simulate_speculative_decoder(**kwargs: Any) -> dict[str, float]:
schedule = kwargs.pop("schedule", None) or default_three_t_injection()
cfg = SwiperConfig(speculative=True, seed=int(kwargs.get("seed", 42)))
return run_swiper_simulation(schedule, cfg)["metrics"]
def simulate_naive_decoder(**kwargs: Any) -> dict[str, float]:
schedule = kwargs.pop("schedule", None) or default_three_t_injection()
cfg = SwiperConfig(speculative=False, seed=int(kwargs.get("seed", 42)))
return run_swiper_simulation(schedule, cfg)["metrics"] |