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[AutoAgent] Add option to ignore router cache #74

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[AutoAgent] Add option to ignore router cache #74

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a83b4fa
Add option to ignore router cache
Jack-Khuu Jan 13, 2026
f7f521b
Wrap load into conditional
Jack-Khuu Jan 14, 2026
ef00f35
Merge branch 'main' into cache-off
Jack-Khuu Jan 16, 2026
18ff492
Update README
Jack-Khuu Jan 16, 2026
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40 changes: 26 additions & 14 deletions Fuser/auto_agent.py
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Original file line number Diff line number Diff line change
Expand Up @@ -330,6 +330,7 @@ def __init__(
dispatch_jobs: int = 2,
allow_fallback: bool = True,
target_platform: str | None = None,
use_router_cache: bool = True,
) -> None:
self.ka_model = ka_model
self.ka_num_workers = ka_num_workers
Expand All @@ -352,6 +353,7 @@ def __init__(
self.dispatch_jobs = dispatch_jobs
self.allow_fallback = allow_fallback
self.platform_config = get_platform(target_platform)
self.use_router_cache = use_router_cache

def _solve_with_kernelagent(self, problem_code: str) -> RouteResult:
agent = TritonKernelAgent(
Expand Down Expand Up @@ -461,20 +463,23 @@ def solve(self, problem_path: Path) -> RouteResult:
heuristic_prefers_fuser = cx.route_to_fuser()

# Cache lookup by content hash to avoid repeated router calls
cache = {}
code_hash = _file_sha256_text(code)
cache = _load_router_cache()
cached = cache.get(code_hash)

strategy: str | None = None
route_conf: float | None = None
route_cfg: dict[str, Any] = {}

if isinstance(cached, dict):
strategy = (
str(cached.get("route_strategy") or cached.get("route") or "") or None
)
route_conf = cached.get("confidence")
route_cfg = cached.get("config") or {}
if self.use_router_cache:
cache = _load_router_cache()
cached = cache.get(code_hash)

if isinstance(cached, dict):
strategy = (
str(cached.get("route_strategy") or cached.get("route") or "")
or None
)
route_conf = cached.get("confidence")
route_cfg = cached.get("config") or {}

if strategy is None:
# Try LLM-driven decision
Expand All @@ -483,11 +488,12 @@ def solve(self, problem_path: Path) -> RouteResult:
problem_path, code, cx
)
# Persist in cache for future runs
cache[code_hash] = info.get("parsed") or {
"route_strategy": strategy,
"confidence": route_conf,
}
_save_router_cache(cache)
if self.use_router_cache:
cache[code_hash] = info.get("parsed") or {
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@Laurawly Laurawly Jan 15, 2026

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router-emitted config.llm_models / config.ka_model can be non-configured/inaccessible, gets cached verbatim, and later runs apply it unvalidated. Please consider validating/intersecting against the local registry (utils/providers/available_models.py) + provider availability before (a) applying and/or (b) writing to cache.

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@Jack-Khuu Jack-Khuu Jan 16, 2026

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Agreed, I have a local fix I'll push in a separate PR since there's actually some other bugs that get tackled over there

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@Jack-Khuu Jack-Khuu Jan 16, 2026

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#79

"route_strategy": strategy,
"confidence": route_conf,
}
_save_router_cache(cache)
except Exception:
# No provider or failure; fall back later
pass
Expand Down Expand Up @@ -704,6 +710,11 @@ def main(argv: list[str] | None = None) -> int:
p.add_argument("--verify", action="store_true")
p.add_argument("--dispatch-jobs", type=int, default=2)
p.add_argument("--no-fallback", action="store_true")
p.add_argument(
"--no-router-cache",
action="store_true",
help="Disable router cache (do not read from or write to cache)",
)
p.add_argument(
"--target-platform",
default="cuda",
Expand Down Expand Up @@ -741,6 +752,7 @@ def main(argv: list[str] | None = None) -> int:
dispatch_jobs=args.dispatch_jobs,
allow_fallback=(not args.no_fallback),
target_platform=args.target_platform,
use_router_cache=(not args.no_router_cache),
)

try:
Expand Down