1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#!/usr/bin/env python3
# encoding: utf-8
"""
_SplitUniformDimensionRepresentation.py
Created by Graham Dennis on 2008-07-30.
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.Geometry.DimensionRepresentation import DimensionRepresentation
from xpdeint.Utilities import lazy_property
class _SplitUniformDimensionRepresentation(DimensionRepresentation):
instanceAttributes = ['_range']
@lazy_property
def alternateLoopIndex(self):
return '_j_' + self.name
def openLoop(self, loopingOrder):
if loopingOrder == self.LoopingOrder.MemoryOrder:
return self.openLoopMemoryOrder()
elif loopingOrder == self.LoopingOrder.StrictlyAscendingOrder:
assert not self.hasLocalOffset
return self.openLoopAscending()
else:
raise NotImplemented
def closeLoop(self, loopingOrder):
if loopingOrder == self.LoopingOrder.MemoryOrder:
return self.closeLoopMemoryOrder()
elif loopingOrder == self.LoopingOrder.StrictlyAscendingOrder:
return self.closeLoopAscending()
else:
raise NotImplemented
def nonlocalAccessIndexFromStringForFieldInBasis(self, accessString, field, basis):
result = super(_SplitUniformDimensionRepresentation, self).nonlocalAccessIndexFromStringForFieldInBasis(accessString, field, basis)
if result: return result
# We only support access with the negative of the dimension variable. e.g. -kx
name = self.name
aliasRepresentations = self.aliasRepresentationsForFieldInBasis(field, basis)
matchingAliasReps = [dimRep for dimRep in aliasRepresentations if accessString == ('-' + dimRep.name)]
assert len(matchingAliasReps) <= 1
if not matchingAliasReps: return
matchingAliasRep = matchingAliasReps[0]
# We only support the case where the global number of points in the looping dimension and the
# accessing dimension are the same. i.e. no sub-sampling and non-local access at the same time.
if not field.hasDimensionName(matchingAliasRep.parent.name): return
loopDimRep = field.dimensionWithName(matchingAliasRep.parent.name).inBasis(basis)
if not matchingAliasRep.runtimeLattice == loopDimRep.runtimeLattice: return
loopingIndex = loopDimRep.loopIndex
globalLattice = matchingAliasRep.globalLattice
return '(%(globalLattice)s - %(loopingIndex)s) %% %(globalLattice)s' % locals()
|
