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Allow setting programs_per_island from config #291

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Merged
merged 2 commits into from
Oct 13, 2025
Merged

Allow setting programs_per_island from config #291

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abd622c
Allow setting programs_per_island from config
theahura Oct 13, 2025
6dc0036
Update config.py
theahura Oct 13, 2025
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1 change: 1 addition & 0 deletions openevolve/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -248,6 +248,7 @@ class DatabaseConfig:
population_size: int = 1000
archive_size: int = 100
num_islands: int = 5
programs_per_island: Optional[int] = None

# Selection parameters
elite_selection_ratio: float = 0.1
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2 changes: 1 addition & 1 deletion openevolve/process_parallel.py
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Expand Up @@ -426,7 +426,7 @@ async def run_evolution(
completed_iterations = 0

# Island management
programs_per_island = max(1, max_iterations // (self.config.database.num_islands * 10))
programs_per_island = self.config.database.programs_per_island or max(1, max_iterations // (self.config.database.num_islands * 10))
current_island_counter = 0

# Early stopping tracking
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