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[BugFix][Ansor] Fixing Ansor Gradient Bug #16739

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Merged
comaniac merged 3 commits into from
Apr 1, 2024
Merged

[BugFix][Ansor] Fixing Ansor Gradient Bug #16739

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fcf8e03
Fixing ansor gradient bug
thaisacs Mar 19, 2024
7b1a19c
Changing to dead_task
thaisacs Mar 29, 2024
6c1c39a
Applying reviews
thaisacs Mar 29, 2024
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6 changes: 6 additions & 0 deletions python/tvm/auto_scheduler/task_scheduler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -358,6 +358,11 @@ def tune(
self.best_ct = self.ct
self.best_score = self.cur_score

# put task without schedule on warm up to dead state
for task_idx, cost in enumerate(self.best_costs):
if cost == 1e10:
self.dead_tasks.add(task_idx)

# use the specific strategy to choose workload to tune
task_idx = -1
while self.ct < tune_option.num_measure_trials and len(self.dead_tasks) < len(self.tasks):
Expand All @@ -367,6 +372,7 @@ def tune(
task_idx = (task_idx + 1) % len(self.tasks)
elif self.strategy == "gradient":
gradients = []

for i in range(len(self.tasks)):
if i in self.dead_tasks:
gradients.append(0)
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