Refactor parallel communicators - #7893

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mohanchen wants to merge 11 commits into

deepmodeling:developfrom

mohanchen:2026-09-01-line1

Commits on Sep 1, 2026

refactor(parallel): step-0 cleanup source_base parallel_*
abacus_fixer
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2a7696f
refactor(parallel): step-1a introduce ProcessTopology value class + divide_mpi_groups tests
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a6e1a67
refactor(parallel): step-1a rename ProcessTopology to 8-domain consistent `*_world_comm` naming
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a9dcda3
refactor(parallel): step-1b add Parallel_Global::create_topology factory + align error path
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5539972

Commits on Sep 2, 2026

fix(parallel): correct band_group_root_rank formula and illegal test layout
abacus_fixer
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c15dc75
feat(parallel): add immutable with_*_world_comm builders and ESolver topology channel
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65509aa
refactor(parallel): rename ProcessTopology to ParallelPartition
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ed0c3e4
fix(parallel): reproduce exact legacy call order in create_partition
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d47dfd0
test(parallel): add boundary tests for ParallelPartition
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ef5e970
fix(parallel): compile create_partition and divide_mpi_groups in non-MPI builds
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0fa8fc6
build(parallel): register parallel_partition.o in Makefile.Objects
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6ca2e01