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#!/usr/bin/env python3
# encoding: utf-8
"""
_DistributedMPIDriver.py
Created by Graham Dennis on 2008-03-29.
Copyright (c) 2008-2012, Graham Dennis
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 2 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, see <http://www.gnu.org/licenses/>.
"""
from xpdeint.SimulationDrivers.SimulationDriver import SimulationDriver
from xpdeint.SimulationDrivers.MPI import MPI
from xpdeint.Features.OutputFormat import OutputFormat
from xpdeint.ParserException import ParserException
class _DistributedMPIDriver (SimulationDriver, MPI):
def __init__(self, *args, **KWs):
SimulationDriver.__init__(self, *args, **KWs)
MPI.__init__(self, *args, **KWs)
self._distributedTransform = None
def _getDistributedTransform(self):
return self._distributedTransform
def _setDistributedTransform(self, value):
assert not self._distributedTransform
self._distributedTransform = value
distributedTransform = property(_getDistributedTransform, _setDistributedTransform)
del _getDistributedTransform, _setDistributedTransform
def isFieldDistributed(self, field):
return self._distributedTransform.isFieldDistributed(field)
def shadowedVariablesForField(self, field):
if not self.isFieldDistributed(field):
return []
result = []
for dim in field.dimensions:
for rep in [rep for rep in dim.representations if rep and rep.hasLocalOffset]:
result.extend([rep.localLattice, rep.localOffset])
return result
def basisWithTransverseDimensionsMovedAfterMPIDimensions(self, basis):
geometry = self.getVar('geometry')
dimRepNameMap = dict()
for dim in geometry.dimensions:
for dimRep in dim.representations:
dimRepNameMap[dimRep.canonicalName] = dim
dimRepNameMap[dimRep.name] = dim
basis = list(basis)
for dimRepName in basis[:]:
if dimRepNameMap[dimRepName].transverse and dimRepNameMap[dimRepName].name not in self.distributedDimensionNames:
# Move it to the end.
basis.remove(dimRepName)
basis.append(dimRepName)
return tuple(basis)
def preflight(self):
super(_DistributedMPIDriver, self).preflight()
outputFormats = [o for o in self.getVar('templates') if isinstance(o, OutputFormat)]
outputFeature = self.getVar('features')['Output']
for outputFormat in outputFormats:
if not outputFormat.mpiSafe:
raise ParserException(outputFeature.xmlElement, "The '%s' output format cannot be used with the 'distributed-mpi' driver." % outputFormat.name)
def canonicalBasisForBasis(self, basis, **KWs):
basis = self.basisWithTransverseDimensionsMovedAfterMPIDimensions(basis)
if self._distributedTransform.hasattr('canonicalBasisForBasis'):
return self._distributedTransform.canonicalBasisForBasis(basis, **KWs)
return super(_DistributedMPIDriver, self).canonicalBasisForBasis(basis, **KWs)
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