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mpi: Drop dual mode and tweak overlap2/full modes for GPU backends#2926

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resurrect-mpi-dual-2
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mpi: Drop dual mode and tweak overlap2/full modes for GPU backends#2926
JDBetteridge wants to merge 10 commits into
mainfrom
resurrect-mpi-dual-2

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Needs CI running over it

@JDBetteridge JDBetteridge force-pushed the resurrect-mpi-dual-2 branch from ee16062 to 1bb7826 Compare May 11, 2026 09:27
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codecov Bot commented May 11, 2026

Codecov Report

❌ Patch coverage is 58.41584% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.33%. Comparing base (91d8596) to head (7d316b5).

Files with missing lines Patch % Lines
devito/mpi/halo_scheme.py 48.38% 16 Missing ⚠️
tests/test_mpi.py 13.33% 13 Missing ⚠️
devito/symbolics/extended_sympy.py 65.21% 7 Missing and 1 partial ⚠️
devito/mpi/distributed.py 60.00% 2 Missing ⚠️
devito/passes/iet/mpi.py 88.88% 1 Missing and 1 partial ⚠️
devito/mpi/routines.py 66.66% 1 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #2926      +/-   ##
==========================================
- Coverage   83.35%   83.33%   -0.02%     
==========================================
  Files         248      248              
  Lines       51734    51761      +27     
  Branches     4463     4462       -1     
==========================================
+ Hits        43122    43135      +13     
- Misses       7859     7875      +16     
+ Partials      753      751       -2     
Flag Coverage Δ
pytest-gpu-aomp-amdgpuX 68.70% <65.11%> (+<0.01%) ⬆️
pytest-gpu-gcc- 78.03% <58.41%> (-0.01%) ⬇️
pytest-gpu-icx- 77.97% <58.41%> (+<0.01%) ⬆️
pytest-gpu-nvc-nvidiaX 69.24% <65.11%> (+0.01%) ⬆️

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@FabioLuporini FabioLuporini force-pushed the resurrect-mpi-dual-2 branch from 1bb7826 to fd4a133 Compare May 11, 2026 12:49
@FabioLuporini FabioLuporini changed the title Resurrect mpi dual 2 mpi: Drop dual mode and tweak overlap2/full modes for GPU backends May 11, 2026
@FabioLuporini FabioLuporini force-pushed the resurrect-mpi-dual-2 branch from fd4a133 to 9a56cdf Compare May 11, 2026 13:54
Comment thread devito/mpi/distributed.py
else:
# A custom topology may contain integers or the wildcard '*'
self._topology = CustomTopology(topology, self._input_comm)
self._topology = CustomTopology(
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Might want to have compute_dims return a DimensionTuple as well

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3 participants