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Change Firefly algorithm to use negation instead of division #317

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Merged
benvanwerkhoven merged 1 commit into from
Jun 25, 2025
Merged

Change Firefly algorithm to use negation instead of division #317

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7 changes: 2 additions & 5 deletions kernel_tuner/strategies/firefly_algorithm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ def __init__(self, bounds):
"""Create Firefly at random position within bounds."""
super().__init__(bounds)
self.bounds = bounds
self.intensity = 1 / self.score
self.intensity = -self.score

def distance_to(self, other):
"""Return Euclidian distance between self and other Firefly."""
Expand All @@ -103,10 +103,7 @@ def distance_to(self, other):
def compute_intensity(self, fun):
"""Evaluate cost function and compute intensity at this position."""
self.evaluate(fun)
if self.score == sys.float_info.max:
self.intensity = -sys.float_info.max
else:
self.intensity = 1 / self.score
self.intensity = -self.score

def move_towards(self, other, beta, alpha):
"""Move firefly towards another given beta and alpha values."""
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