guilhem_lavaux/cosmotool
0
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Working ICs with ramses

Browse source
This commit is contained in:
Guilhem Lavaux 2014-06-03 18:50:04 +02:00
parent 8f582707da
commit a82688b0b1
3 changed files with 41 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

34
python_sample/icgen/test_ic_from_borg.py Normal file
View file

@ -0,0 +1,34 @@
import numpy as np
import cosmotool as ct
import borgicgen as bic
cosmo={'omega_M_0':0.3175, 'h':0.6711}
cosmo['omega_lambda_0']=1-cosmo['omega_M_0']
cosmo['omega_k_0'] = 0
cosmo['omega_B_0']=0.049
cosmo['SIGMA8']=0.8344
snap_id=11
s = ct.loadRamsesAll("/nethome/lavaux/remote2/borgsim/", snap_id, doublePrecision=True)
astart=s.getTime()
pos,_,density,N,L,_ = bic.run_generation("initial_condition_borg.dat", 0.001, astart, cosmo, supersample=1, do_lpt2=True)
dcic = ct.cicParticles(pos, L, N)
dcic /= np.average(np.average(np.average(dcic, axis=0), axis=0), axis=0)
dcic -= 1
dsim = ct.cicParticles(s.getPositions(), L, N)
dsim /= np.average(np.average(np.average(dsim, axis=0), axis=0), axis=0)
dsim -= 1
dcic_hat = np.fft.rfftn(dcic)*(L/N)**3
dsim_hat = np.fft.rfftn(dsim)*(L/N)**3
Pcic, bcic = bic.bin_power(np.abs(dcic_hat)**2/L**3, L, bins=50)
Psim, bsim = bic.bin_power(np.abs(dsim_hat)**2/L**3, L, bins=50)
borg_evolved = ct.read_borg_vol("final_density_1380.dat")