26 lines
709 B
Python
26 lines
709 B
Python
import timeit
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import numpy as np
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import cosmotool as ct
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def myfun(N):
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f=0.10
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d=np.random.normal(size=(N,)*3)
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rho = d + f *(d*d - np.average(d*d))
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B = ct.bispectrum(rho, 1, N, fourier=False)
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P = ct.powerspectrum(rho, 1, N, fourier=False)
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PP = P[1]/P[0]/N**3
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x = PP[:,None,None] * PP[None,:,None] + PP[:,None,None]*PP[None,None,:] + PP[None,:,None]*PP[None,None,:]
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BB = B[1]/B[0]/N**6
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y = BB/x
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np.savez("bispec_%d.npy" % N, y=y, B=B, P=P, rho=rho);
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print( timeit.timeit('from __main__ import myfun; myfun(16)', number=1) )
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print( timeit.timeit('from __main__ import myfun; myfun(32)', number=1) )
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print( timeit.timeit('from __main__ import myfun; myfun(64)', number=1) )
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