mirror of
https://github.com/Richard-Sti/csiborgtools.git
synced 2024-10-19 00:15:06 +02:00
b710b8e89c
* edit IC paths * Remove import * Edit path * Change naming * Add __main__ * Script to match everything * Edit docs * Remove test statement * Move import * Update nb
83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
# Copyright (C) 2022 Richard Stiskalek
|
|
# This program is free software; you can redistribute it and/or modify it
|
|
# under the terms of the GNU General Public License as published by the
|
|
# Free Software Foundation; either version 3 of the License, or (at your
|
|
# option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
|
# Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along
|
|
# with this program; if not, write to the Free Software Foundation, Inc.,
|
|
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
"""
|
|
Script to sort the initial snapshot particles according to their final
|
|
snapshot ordering, which is sorted by the clump IDs.
|
|
"""
|
|
from argparse import ArgumentParser
|
|
from datetime import datetime
|
|
|
|
import h5py
|
|
from gc import collect
|
|
import numpy
|
|
from mpi4py import MPI
|
|
|
|
try:
|
|
import csiborgtools
|
|
except ModuleNotFoundError:
|
|
import sys
|
|
|
|
sys.path.append("../")
|
|
import csiborgtools
|
|
|
|
|
|
# Get MPI things
|
|
comm = MPI.COMM_WORLD
|
|
rank = comm.Get_rank()
|
|
nproc = comm.Get_size()
|
|
verbose = nproc == 1
|
|
|
|
# Argument parser
|
|
parser = ArgumentParser()
|
|
parser.add_argument("--ics", type=int, nargs="+", default=None,
|
|
help="IC realisations. If `-1` processes all simulations.")
|
|
args = parser.parse_args()
|
|
paths = csiborgtools.read.CSiBORGPaths(**csiborgtools.paths_glamdring)
|
|
partreader = csiborgtools.read.ParticleReader(paths)
|
|
# NOTE: ID has to be the last column.
|
|
pars_extract = ["x", "y", "z", "M", "ID"]
|
|
|
|
if args.ics is None or args.ics[0] == -1:
|
|
ics = paths.get_ics()
|
|
else:
|
|
ics = args.ics
|
|
|
|
# We loop over simulations. Each simulation is then procesed with MPI, rank 0
|
|
# loads the data and broadcasts it to other ranks.
|
|
jobs = csiborgtools.fits.split_jobs(len(ics), nproc)[rank]
|
|
for i in jobs:
|
|
nsim = ics[i]
|
|
nsnap = max(paths.get_snapshots(nsim))
|
|
|
|
print(f"{datetime.now()}: reading and processing simulation {nsim}.",
|
|
flush=True)
|
|
# We first load the particle IDs in the final snapshot.
|
|
pidf = csiborgtools.read.read_h5(paths.particles_path(nsim))
|
|
pidf = pidf["particle_ids"]
|
|
# Then we load the particles in the initil snapshot and make sure that
|
|
# their particle IDs are sorted as in the final snapshot.
|
|
# Again, because of precision this must be read as structured.
|
|
part0, pid0 = partreader.read_particle(
|
|
1, nsim, pars_extract, return_structured=False, verbose=verbose)
|
|
# First enforce them to already be sorted and then apply reverse
|
|
# sorting from the final snapshot.
|
|
part0 = part0[numpy.argsort(pid0)]
|
|
del pid0
|
|
collect()
|
|
part0 = part0[numpy.argsort(numpy.argsort(pidf))]
|
|
print(f"{datetime.now()}: dumping particles for {nsim}.", flush=True)
|
|
with h5py.File(paths.initmatch_path(nsim, "particles"), "w") as f:
|
|
f.create_dataset("particles", data=part0)
|