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# This file is part of QuTiP: Quantum Toolbox in Python.
#
# Copyright (c) 2011 and later, Paul D. Nation and Robert J. Johansson.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of the QuTiP: Quantum Toolbox in Python nor the names
# of its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
###############################################################################
from __future__ import division, print_function, absolute_import
import os
import sys
import warnings
import qutip.settings
import qutip.version
from qutip.version import version as __version__
from qutip.utilities import _version2int
# -----------------------------------------------------------------------------
# Check if we're in IPython.
try:
__IPYTHON__
qutip.settings.ipython = True
except:
qutip.settings.ipython = False
# -----------------------------------------------------------------------------
# Check for minimum requirements of dependencies, give the user a warning
# if the requirements aren't fulfilled
#
numpy_requirement = "1.12.0"
try:
import numpy
if _version2int(numpy.__version__) < _version2int(numpy_requirement):
print("QuTiP warning: old version of numpy detected " +
("(%s), requiring %s." %
(numpy.__version__, numpy_requirement)))
except:
warnings.warn("numpy not found.")
scipy_requirement = "1.0.0"
try:
import scipy
if _version2int(scipy.__version__) < _version2int(scipy_requirement):
print("QuTiP warning: old version of scipy detected " +
("(%s), requiring %s." %
(scipy.__version__, scipy_requirement)))
except:
warnings.warn("scipy not found.")
# -----------------------------------------------------------------------------
# check to see if running from install directory for released versions.
#
top_path = os.path.dirname(os.path.dirname(__file__))
try:
setup_file = open(top_path + '/setup.py', 'r')
except:
pass
else:
if ('QuTiP' in setup_file.readlines()[1][3:]) and qutip.version.release:
print("You are in the installation directory. " +
"Change directories before running QuTiP.")
setup_file.close()
del top_path
# -----------------------------------------------------------------------------
# Look to see if we are running with OPENMP
#
# Set environ variable to determin if running in parallel mode
# (i.e. in parfor or parallel_map)
os.environ['QUTIP_IN_PARALLEL'] = 'FALSE'
try:
from qutip.cy.openmp.parfuncs import spmv_csr_openmp
except:
qutip.settings.has_openmp = False
else:
qutip.settings.has_openmp = True
# See Pull #652 for why this is here.
os.environ['KMP_DUPLICATE_LIB_OK'] = 'True'
import platform
from .utilities import _blas_info
qutip.settings.eigh_unsafe = (_blas_info() == "OPENBLAS" and
platform.system() == 'Darwin')
# -----------------------------------------------------------------------------
# setup the cython environment
#
_cython_requirement = "0.21.0"
try:
import Cython
if _version2int(Cython.__version__) < _version2int(_cython_requirement):
print("QuTiP warning: old version of cython detected " +
("(%s), requiring %s." %
(Cython.__version__, _cython_requirement)))
# Setup pyximport
import qutip.cy.pyxbuilder as pbldr
pbldr.install(setup_args={'include_dirs': [numpy.get_include()]})
del pbldr
except Exception as e:
pass
else:
del Cython
# -----------------------------------------------------------------------------
# cpu/process configuration
#
import multiprocessing
# Check if environ flag for qutip processes is set
if 'QUTIP_NUM_PROCESSES' in os.environ:
qutip.settings.num_cpus = int(os.environ['QUTIP_NUM_PROCESSES'])
else:
os.environ['QUTIP_NUM_PROCESSES'] = str(qutip.settings.num_cpus)
if qutip.settings.num_cpus == 0:
# if num_cpu is 0 set it to the available number of cores
import qutip.hardware_info
info = qutip.hardware_info.hardware_info()
if 'cpus' in info:
qutip.settings.num_cpus = info['cpus']
else:
try:
qutip.settings.num_cpus = multiprocessing.cpu_count()
except:
qutip.settings.num_cpus = 1
# Find MKL library if it exists
import qutip._mkl
# -----------------------------------------------------------------------------
# Check that import modules are compatible with requested configuration
#
# Check for Matplotlib
try:
import matplotlib
except:
warnings.warn("matplotlib not found: Graphics will not work.")
else:
del matplotlib
# -----------------------------------------------------------------------------
# Load modules
#
# core
from qutip.qobj import *
from qutip.qobjevo import *
from qutip.states import *
from qutip.operators import *
from qutip.expect import *
from qutip.tensor import *
from qutip.superoperator import *
from qutip.superop_reps import *
from qutip.subsystem_apply import *
from qutip.graph import *
# graphics
from qutip.bloch import *
from qutip.visualization import *
from qutip.orbital import *
from qutip.bloch3d import *
from qutip.matplotlib_utilities import *
# library functions
from qutip.tomography import *
from qutip.wigner import *
from qutip.random_objects import *
from qutip.simdiag import *
from qutip.entropy import *
from qutip.metrics import *
from qutip.partial_transpose import *
from qutip.permute import *
from qutip.continuous_variables import *
from qutip.distributions import *
from qutip.three_level_atom import *
# evolution
from qutip.solver import *
from qutip.rhs_generate import *
from qutip.mesolve import *
from qutip.sesolve import *
from qutip.mcsolve import *
from qutip.stochastic import *
from qutip.essolve import *
from qutip.eseries import *
from qutip.propagator import *
from qutip.floquet import *
from qutip.bloch_redfield import *
from qutip.cy.br_tensor import bloch_redfield_tensor
from qutip.steadystate import *
from qutip.correlation import *
from qutip.countstat import *
from qutip.rcsolve import *
from qutip.nonmarkov import *
from qutip.interpolate import *
from qutip.scattering import *
# lattice models
from qutip.lattice import *
from qutip.topology import *
########################################################################
# This section exists only for the deprecation warning of qip importation.
# It can be deleted for a major release.
# quantum information
from qutip.qip import *
########################################################################
# utilities
from qutip.parallel import *
from qutip.utilities import *
from qutip.fileio import *
from qutip.about import *
from qutip.cite import *
# Remove -Wstrict-prototypes from cflags
import distutils.sysconfig
cfg_vars = distutils.sysconfig.get_config_vars()
if "CFLAGS" in cfg_vars:
cfg_vars["CFLAGS"] = cfg_vars["CFLAGS"].replace("-Wstrict-prototypes", "")
# -----------------------------------------------------------------------------
# Load user configuration if present: override defaults.
#
import qutip.configrc
has_rc, rc_file = qutip.configrc.has_qutip_rc()
# Make qutiprc and benchmark OPENMP if has_rc = False
if qutip.settings.has_openmp and (not has_rc):
qutip.configrc.generate_qutiprc()
has_rc, rc_file = qutip.configrc.has_qutip_rc()
if has_rc and qutip.settings.num_cpus > 1:
from qutip.cy.openmp.bench_openmp import calculate_openmp_thresh
#bench OPENMP
print('Calibrating OPENMP threshold...')
thrsh = calculate_openmp_thresh()
qutip.configrc.write_rc_key(rc_file, 'openmp_thresh', thrsh)
# Make OPENMP if has_rc but 'openmp_thresh' not in keys
elif qutip.settings.has_openmp and has_rc:
has_omp_key = qutip.configrc.has_rc_key(rc_file, 'openmp_thresh')
if not has_omp_key and qutip.settings.num_cpus > 1:
from qutip.cy.openmp.bench_openmp import calculate_openmp_thresh
print('Calibrating OPENMP threshold...')
thrsh = calculate_openmp_thresh()
qutip.configrc.write_rc_key(rc_file, 'openmp_thresh', thrsh)
# Load the config file
if has_rc:
qutip.configrc.load_rc_config(rc_file)
# -----------------------------------------------------------------------------
# Clean name space
#
del os, sys, numpy, scipy, multiprocessing, distutils
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