def test_meta_schedule_task_scheduler_single():
num_trials_per_iter = 3
max_trials_per_task = 10
sch_fn = ScheduleFn(sch_fn=_schedule_matmul)
replay = ReplayTrace(num_trials_per_iter, max_trials_per_task)
task = TuneContext(
MatmulModule,
target=tvm.target.Target("llvm"),
space_generator=sch_fn,
search_strategy=replay,
task_name="Test",
rand_state=42,
)
database = DummyDatabase()
round_robin = RoundRobin(
[task],
[1.0],
DummyBuilder(),
DummyRunner(),
database,
measure_callbacks=[measure_callback.AddToDatabase()],
max_trials=max_trials_per_task,
)
round_robin.tune()
assert len(database) == max_trials_per_task
def test_meta_schedule_task_scheduler_multiple():
num_trials_per_iter = 6
max_trials_per_task = 101
tasks = [
TuneContext(
MatmulModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_matmul),
search_strategy=ReplayTrace(num_trials_per_iter,
max_trials_per_task),
task_name="Matmul",
rand_state=42,
),
TuneContext(
MatmulReluModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_matmul),
search_strategy=ReplayTrace(num_trials_per_iter,
max_trials_per_task),
task_name="MatmulRelu",
rand_state=0xDEADBEEF,
),
TuneContext(
BatchMatmulModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_batch_matmul),
search_strategy=ReplayTrace(num_trials_per_iter,
max_trials_per_task),
task_name="BatchMatmul",
rand_state=0x114514,
),
]
database = DummyDatabase()
round_robin = RoundRobin(
tasks,
[1.0],
DummyBuilder(),
DummyRunner(),
database,
measure_callbacks=[measure_callback.AddToDatabase()],
max_trials=max_trials_per_task * len(tasks),
)
round_robin.tune()
assert len(database) == max_trials_per_task * len(tasks)
for task in tasks:
assert (len(
database.get_top_k(
database.commit_workload(task.mod),
100000,
)) == max_trials_per_task)
def test_meta_schedule_measure_callback_fail():
@derived_object
class FailingMeasureCallback(PyMeasureCallback):
def apply(
self,
task_scheduler: TaskScheduler,
task_id: int,
measure_candidates: List[MeasureCandidate],
builds: List[BuilderResult],
results: List[RunnerResult],
) -> None:
raise ValueError("test")
measure_callback = FailingMeasureCallback()
with pytest.raises(ValueError, match="test"):
measure_callback.apply(
RoundRobin([], [],
DummyBuilder(),
DummyRunner(),
DummyDatabase(),
max_trials=1),
0,
[MeasureCandidate(Schedule(Matmul), None)],
[BuilderResult("test_build", None)],
[RunnerResult([1.0, 2.1], None)],
)
def test_meta_schedule_measure_callback():
@derived_object
class FancyMeasureCallback(PyMeasureCallback):
def apply(
self,
task_scheduler: TaskScheduler,
task_id: int,
measure_candidates: List[MeasureCandidate],
builds: List[BuilderResult],
results: List[RunnerResult],
) -> None:
assert len(measure_candidates) == 1
assert_structural_equal(measure_candidates[0].sch.mod, Matmul)
assert (len(builds) == 1 and builds[0].error_msg is None
and builds[0].artifact_path == "test_build")
assert (len(results) == 1 and results[0].error_msg is None
and len(results[0].run_secs) == 2)
measure_callback = FancyMeasureCallback()
measure_callback.apply(
RoundRobin([], [],
DummyBuilder(),
DummyRunner(),
DummyDatabase(),
max_trials=1),
0,
[MeasureCandidate(Schedule(Matmul), None)],
[BuilderResult("test_build", None)],
[RunnerResult([1.0, 2.1], None)],
)
def test_meta_schedule_task_scheduler_single():
num_trials_per_iter = 3
num_trials_total = 10
sch_fn = ScheduleFn(sch_fn=_schedule_matmul)
replay = ReplayTrace(num_trials_per_iter, num_trials_total)
task = TuneContext(
MatmulModule,
target=tvm.target.Target("llvm"),
space_generator=sch_fn,
search_strategy=replay,
task_name="Test",
rand_state=42,
)
database = DummyDatabase()
round_robin = RoundRobin([task], DummyBuilder(), DummyRunner(), database)
round_robin.tune()
assert len(database) == num_trials_total
def test_meta_schedule_task_scheduler_multiple():
num_trials_per_iter = 6
num_trials_total = 101
tasks = [
TuneContext(
MatmulModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_matmul),
search_strategy=ReplayTrace(num_trials_per_iter, num_trials_total),
task_name="Matmul",
rand_state=42,
),
TuneContext(
MatmulReluModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_matmul),
search_strategy=ReplayTrace(num_trials_per_iter, num_trials_total),
task_name="MatmulRelu",
rand_state=0xDEADBEEF,
),
TuneContext(
BatchMatmulModule,
target=tvm.target.Target("llvm"),
space_generator=ScheduleFn(sch_fn=_schedule_batch_matmul),
search_strategy=ReplayTrace(num_trials_per_iter, num_trials_total),
task_name="BatchMatmul",
rand_state=0x114514,
),
]
database = DummyDatabase()
round_robin = RoundRobin(tasks, DummyBuilder(), DummyRunner(), database)
round_robin.tune()
assert len(database) == num_trials_total * len(tasks)
print(database.workload_reg)
for task in tasks:
assert len(database.get_top_k(database.commit_workload(task.mod),
1e9)) == num_trials_total
def test_meta_schedule_evolutionary_search_early_stop(
): # pylint: disable = invalid-name]
def _schedule_matmul_empty(sch: Schedule):
return sch
num_trials_per_iter = 10
max_trials_per_task = 100
strategy = EvolutionarySearch(
num_trials_per_iter=num_trials_per_iter,
max_trials_per_task=max_trials_per_task,
population_size=5,
init_measured_ratio=0.1,
init_min_unmeasured=50,
genetic_num_iters=3,
genetic_mutate_prob=0.5,
genetic_max_fail_count=10,
eps_greedy=0.9,
)
context = TuneContext(
mod=Matmul,
space_generator=ScheduleFn(sch_fn=_schedule_matmul_empty),
mutator_probs={
DummyMutator(): 1.0,
},
target=tvm.target.Target("llvm"),
num_threads=1, # because we are using a mutator from the python side
)
_scheduler = RoundRobin(
tasks=[context],
task_weights=[1.0],
builder=ms.builder.LocalBuilder(),
runner=ms.runner.LocalRunner(),
database=DummyDatabase(),
cost_model=ms.cost_model.RandomModel(),
measure_callbacks=[],
max_trials=1,
)
context.space_generator.initialize_with_tune_context(context)
spaces = context.space_generator.generate_design_space(context.mod)
strategy.initialize_with_tune_context(context)
strategy.pre_tuning(spaces)
(correct_sch, ) = ScheduleFn(
sch_fn=_schedule_matmul).generate_design_space(Matmul)
num_trials_each_iter: List[int] = []
candidates = strategy.generate_measure_candidates()
while candidates is not None:
num_trials_each_iter.append(len(candidates))
runner_results: List[RunnerResult] = []
for candidate in candidates:
_is_trace_equal(
candidate.sch,
correct_sch,
remove_decisions=(isinstance(strategy, ReplayTrace)),
)
runner_results.append(
RunnerResult(run_secs=[0.11, 0.41, 0.54], error_msg=None))
strategy.notify_runner_results(context, candidates, runner_results)
candidates = strategy.generate_measure_candidates()
strategy.post_tuning()
assert num_trials_each_iter == [1, 0, 0, 0, 0]
del _scheduler
def test_meta_schedule_evolutionary_search(
): # pylint: disable = invalid-name]
@derived_object
class DummyMutator(PyMutator):
"""Dummy Mutator for testing"""
def initialize_with_tune_context(self, context: "TuneContext") -> None:
pass
def apply(self, trace: Trace, _) -> Optional[Trace]:
return Trace(trace.insts, {})
@derived_object
class DummyDatabase(PyDatabase):
"""Dummy Database for testing"""
def __init__(self):
super().__init__()
self.records = []
self.workload_reg = []
def has_workload(self, mod: IRModule) -> bool:
for workload in self.workload_reg:
if tvm.ir.structural_equal(workload.mod, mod):
return True
return False
def commit_tuning_record(self, record: TuningRecord) -> None:
self.records.append(record)
def commit_workload(self, mod: IRModule) -> Workload:
for workload in self.workload_reg:
if tvm.ir.structural_equal(workload.mod, mod):
return workload
workload = Workload(mod)
self.workload_reg.append(workload)
return workload
def get_top_k(self, workload: Workload,
top_k: int) -> List[TuningRecord]:
return list(
filter(
lambda x: x.workload == workload,
sorted(self.records,
key=lambda x: sum(x.run_secs) / len(x.run_secs)),
))[:int(top_k)]
def __len__(self) -> int:
return len(self.records)
def print_results(self) -> None:
print("\n".join([str(r) for r in self.records]))
num_trials_per_iter = 10
num_trials_total = 100
strategy = EvolutionarySearch(
num_trials_per_iter=num_trials_per_iter,
num_trials_total=num_trials_total,
population_size=5,
init_measured_ratio=0.1,
init_min_unmeasured=50,
genetic_num_iters=3,
genetic_mutate_prob=0.5,
genetic_max_fail_count=10,
eps_greedy=0.9,
)
context = TuneContext(
mod=Matmul,
space_generator=ScheduleFn(sch_fn=_schedule_matmul),
mutator_probs={
DummyMutator(): 1.0,
},
target=tvm.target.Target("llvm"),
num_threads=1, # because we are using a mutator from the python side
)
_scheduler = RoundRobin(
tasks=[context],
builder=LocalBuilder(),
runner=LocalRunner(),
database=DummyDatabase(),
cost_model=RandomModel(),
measure_callbacks=[],
)
context.space_generator.initialize_with_tune_context(context)
spaces = context.space_generator.generate_design_space(context.mod)
strategy.initialize_with_tune_context(context)
strategy.pre_tuning(spaces)
(correct_sch, ) = ScheduleFn(
sch_fn=_schedule_matmul).generate_design_space(Matmul)
num_trials_each_iter: List[int] = []
candidates = strategy.generate_measure_candidates()
while candidates is not None:
num_trials_each_iter.append(len(candidates))
runner_results: List[RunnerResult] = []
for candidate in candidates:
_is_trace_equal(
candidate.sch,
correct_sch,
remove_decisions=(isinstance(strategy, ReplayTrace)),
)
runner_results.append(
RunnerResult(run_secs=[0.11, 0.41, 0.54], error_msg=None))
strategy.notify_runner_results(context, candidates, runner_results)
candidates = strategy.generate_measure_candidates()
strategy.post_tuning()
print(num_trials_each_iter)
correct_count = 10 # For each iteration except the last one
assert num_trials_each_iter == [correct_count] * (
num_trials_total // correct_count) + (
[num_trials_total %
correct_count] if num_trials_total % correct_count != 0 else [])
del _scheduler
