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mpi: Generate deterministic code for overlap mode #2303

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Feb 19, 2024
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mpi: Generate deterministic code for overlap mode #2303

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5 changes: 3 additions & 2 deletions devito/mpi/halo_scheme.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
from devito.ir.support import Forward, Scope
from devito.symbolics.manipulation import _uxreplace_registry
from devito.tools import (Reconstructable, Tag, as_tuple, filter_ordered, flatten,
frozendict, is_integer)
frozendict, is_integer, filter_sorted)
from devito.types import Grid

__all__ = ['HaloScheme', 'HaloSchemeEntry', 'HaloSchemeException', 'HaloTouch']
Expand Down Expand Up @@ -287,7 +287,8 @@ def omapper(self):
ranks*, so the output of this method is guaranteed to be consistent
across *all MPI ranks*.
"""
items = [((d, CENTER), (d, LEFT), (d, RIGHT)) for d in self.dimensions]
items = [((d, CENTER), (d, LEFT), (d, RIGHT))
for d in filter_sorted(self.dimensions)]

processed = []
for item in product(*items):
Expand Down
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