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feat: ppdl can return usage stats #1333

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Merged
merged 1 commit into from
Nov 5, 2025
Merged

feat: ppdl can return usage stats #1333

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55 changes: 38 additions & 17 deletions src/pdl/pdl_infer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,17 @@

import yaml
from matplotlib import pyplot as plt
from mu_ppl import viz

from ._version import version
from .pdl import InterpreterConfig
from .pdl_ast import PdlLocationType, Program, ScopeType, get_default_model_parameters
from .pdl_distributions import Categorical
from .pdl_ast import (
PdlLocationType,
PdlUsage,
Program,
ScopeType,
get_default_model_parameters,
)
from .pdl_distributions import Categorical, viz
from .pdl_inference import (
infer_importance_sampling,
infer_importance_sampling_parallel,
Expand Down Expand Up @@ -42,8 +47,8 @@ def exec_program( # pylint: disable=too-many-arguments, too-many-positional-arg
ppdl_config: Optional[PpdlConfig] = None,
scope: Optional[ScopeType | dict[str, Any]] = None,
loc: Optional[PdlLocationType] = None,
# output: Literal["result", "all"] = "result",
) -> Categorical[Any]:
output: Literal["result", "all"] = "result",
) -> Categorical[Any] | dict:
ppdl_config = ppdl_config or PpdlConfig()

algo = ppdl_config.get("algo", "parallel-smc")
Expand All @@ -54,7 +59,8 @@ def exec_program( # pylint: disable=too-many-arguments, too-many-positional-arg
config["yield_result"] = False
config["yield_background"] = False
config["batch"] = 1
config["event_loop"] = _LOOP
config["event_loop"] = config.get("event_loop", _LOOP)
config["llm_usage"] = config.get("llm_usage", PdlUsage())

dist: Categorical[Any]
match algo:
Expand Down Expand Up @@ -97,7 +103,21 @@ def exec_program( # pylint: disable=too-many-arguments, too-many-positional-arg
)
case _:
assert False, f"Unexpected algo: {algo}"
return dist
match output:
case "result":
return dist
case "all":
result_all = {
"result": dist,
# "scope": future_scope.result(),
# "trace": trace,
# "replay": state.replay,
# "score": state.score.ref,
"usage": config["llm_usage"],
}
return result_all
case _:
assert False, 'The `output` variable should be "result" or "all"'


def exec_dict( # pylint: disable=too-many-arguments, too-many-positional-arguments
Expand All @@ -106,10 +126,10 @@ def exec_dict( # pylint: disable=too-many-arguments, too-many-positional-argume
ppdl_config: Optional[PpdlConfig] = None,
scope: Optional[ScopeType | dict[str, Any]] = None,
loc: Optional[PdlLocationType] = None,
# output: Literal["result", "all"] = "result",
) -> Any:
output: Literal["result", "all"] = "result",
) -> Categorical[Any] | dict:
program = parse_dict(prog)
result = exec_program(program, config, ppdl_config, scope, loc)
result = exec_program(program, config, ppdl_config, scope, loc, output)
return result


Expand All @@ -118,10 +138,10 @@ def exec_str(
config: Optional[InterpreterConfig] = None,
ppdl_config: Optional[PpdlConfig] = None,
scope: Optional[ScopeType | dict[str, Any]] = None,
# output: Literal["result", "all"] = "result",
) -> Any:
output: Literal["result", "all"] = "result",
) -> Categorical[Any] | dict:
program, loc = parse_str(prog)
result = exec_program(program, config, ppdl_config, scope, loc)
result = exec_program(program, config, ppdl_config, scope, loc, output)
return result


Expand All @@ -130,14 +150,14 @@ def exec_file(
config: Optional[InterpreterConfig] = None,
ppdl_config: Optional[PpdlConfig] = None,
scope: Optional[ScopeType | dict[str, Any]] = None,
# output: Literal["result", "all"] = "result",
) -> Any:
output: Literal["result", "all"] = "result",
) -> Categorical[Any] | dict:
program, loc = parse_file(prog)
if config is None:
config = InterpreterConfig()
if config.get("cwd") is None:
config["cwd"] = Path(prog).parent
result = exec_program(program, config, ppdl_config, scope, loc)
result = exec_program(program, config, ppdl_config, scope, loc, output)
return result


Expand Down Expand Up @@ -224,8 +244,9 @@ def main():
algo=args.algo, num_particles=args.num_particles, max_workers=args.workers
)

dist = exec_file(args.pdl, config, ppdl_config, initial_scope)
dist = exec_file(args.pdl, config, ppdl_config, initial_scope, output="result")

assert isinstance(dist, Categorical)
if args.viz:
viz(dist)
plt.show()
Expand Down