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Update cosmotool 2nd part

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Guilhem Lavaux 2018-07-19 15:11:23 +03:00
parent 64e05fc180
commit 003bc39d4a
70 changed files with 8708 additions and 0 deletions
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28
external/cosmotool/python_sample/test_bispectrum.py vendored Normal file
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import timeit
import numpy as np
import cosmotool as ct
def myfun(N):
f=0.001
L = 1.0
d=np.random.normal(size=(N,)*3) * np.sqrt(float(N))**3 / L**3
rho = d + f *(d*d - np.average(d*d))
delta = (L/N)**3
B = ct.bispectrum(rho * delta, 1, N, fourier=False)
P = ct.powerspectrum(rho * delta, 1, N, fourier=False)
PP = P[1]/P[0] / L**3
x = PP[:,None,None] * PP[None,:,None] + PP[:,None,None]*PP[None,None,:] + PP[None,:,None]*PP[None,None,:]
BB = B[1]/B[0] / L**3
y = BB/x
np.savez("bispec_%d.npz" % N, x=x, y=y, d=d,B_nt=B[0], B_r=B[1], P_n=P[0], P=P[1], BB=BB, rho=rho, PP=PP);
#print( timeit.timeit('from __main__ import myfun; myfun(16)', number=1) )
#print( timeit.timeit('from __main__ import myfun; myfun(24)', number=1) )
print( timeit.timeit('from __main__ import myfun; myfun(32)', number=1) )
#print( timeit.timeit('from __main__ import myfun; myfun(64)', number=1) )