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precalculate_matrix_elements.py
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precalculate_matrix_elements.py
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#!/usr/bin/python3
# Copyright 2016 Anders Aspegren Søndergaard / Femtolab, Aarhus University
#
# This file is part of Alignment calculator.
#
# Alignment calculator 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.
#
# Alignment calculator 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 Alignment calculator. If not, see <http://www.gnu.org/licenses/>.
import argparse
import multiprocessing
import U2dcalc
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Precalculate cos^2 theta 2d matrix elements for quick lookup instead of online calculation.');
parser.add_argument('Jmax',type=int,help='Maximum J quantum number.');
parser.add_argument('Kmax',type=int,help='Maximum K quantum number.');
parser.add_argument('Mmax',type=int,help='Maximum M quantum number.');
args = parser.parse_args();
Jmax = args.Jmax;
Kmax = args.Kmax;
Mmax = args.Mmax;
# Tell U2dcalc not to limit the number of threads to use
U2dcalc.set_num_threads(multiprocessing.cpu_count());
U2dcalc.precalculate_matrix_elements(Jmax,Kmax,Mmax);