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Provide generation and individual id to objective in snes #4

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12 changes: 6 additions & 6 deletions es/separable_natural_es.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
import numpy as np
from . import lib


def optimize(func, mu, sigma,
learning_rate_mu=None, learning_rate_sigma=None, population_size=None,
max_iter=2000,
Expand Down Expand Up @@ -45,13 +46,13 @@ def optimize(func, mu, sigma,
z = np.vstack([z, mu - sigma * s])
s = np.vstack([s, -s])

generations_list = [generation] * len(z)
individual_list = range(len(z))
if parallel_threads is None:
fitness = np.fromiter((func(zi) for zi in z), np.float)
fitness = np.fromiter((func(zi, gi, ii) for zi, gi, ii in zip(z, generations_list, individual_list)), np.float)
else:
pool = mp.Pool(processes=parallel_threads)
fitness = np.fromiter(pool.map(func, z), np.float)
pool.close()
pool.join()
with mp.Pool(processes=parallel_threads) as pool:
fitness = np.fromiter(pool.starmap(func, zip(z, generations_list, individual_list)), np.float)

ni = np.logical_not(np.isnan(fitness))
z = z[ni]
Expand Down Expand Up @@ -87,4 +88,3 @@ def optimize(func, mu, sigma,
'history_sigma': history_sigma,
'history_fitness': history_fitness,
'history_pop': history_pop}