Load-balance, active-box windowing, block-structured AMR - #1628

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Commits on Aug 28, 2026

Fail formatting when ffmt reports unmatched Fortran block structure
sbryngelson
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55f4001
Cluster from per-rank tag lists with a fused signature reduction (S3.1)
sbryngelson
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2b4da7d
Bring the AMR plan documents current: ledger (38), verified invariant status, increment status
sbryngelson
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c468496
Add a minimum box size (B0) and measure how much of the clustering tree is rank-local (S3.2a)
sbryngelson
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320fe10
Record the S3.2 design contract, the B1 merge-order prerequisite, and retract the P^0.73 law
sbryngelson
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e6a007b
Merge branch 'master' into up/mega
sbryngelson
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bdfc64d
Merge remote-tracking branch 'upstream/master' into up/mega
sbryngelson
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4f6ce85
Merge remote-tracking branch 'origin/up/mega' into up/mega
sbryngelson
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dc80eb6
Ledger (39): B0/S3.2a golden gate closed 69/69, and the np32 question that decides S3.2
sbryngelson
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dc27e4a
B1: canonicalise the clusterer's merge order, plus per-rank scope instrumentation
sbryngelson
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eb6ba24
Ledger (40-41): the forest is the only O(P) term, and 'level-1 is flat' was a cap artifact
sbryngelson
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7251139
S3.3: cluster the level->=2 forest per owner, and exchange its tags point-to-point
sbryngelson
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58aa086
Ledger (42): level 1 is O(P) too, W1 is ~48 global block scans per STEP, and W5's wall is the tag base
sbryngelson
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ee7758b
W1a: iterate this rank's own blocks instead of scanning the global block list
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263730c
Ledger (43): the MPI_TAG_UB wall is an assumed number, not a measured one
sbryngelson
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3cd90f2
Restart format v2: store the per-block owner and extents, not a per-RANK vector
sbryngelson
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cefd317
Correct the MPI_TAG_UB claim in the source, and record the S3.2b/W5 findings
sbryngelson
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e20576c
Ledger (44): AMR aborts on Frontier under CCE, pre-existing, and it outranks every scaling item
sbryngelson
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8bc027b
Give the Cray debug build bounds checking, which every other compiler already had
sbryngelson
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b055b0d
Device-declare the module allocatables that @:ALLOCATE maps to the device
sbryngelson
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8e10b44
Fix NVHPC build: a GPU_DECLARE must follow every symbol it names
sbryngelson
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fa20cba

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