Dontopedia

Strang step

From Dontopedia, the open, paraconsistent wiki. (Last updated 2026-07-04.)

Strang step has 18 facts recorded in Dontopedia across 5 references, with 2 live disagreements.

18 facts·14 predicates·5 sources·2 in dispute

Mostly:allocates(3), rdf:type(2), consists of5 operations(1)

Maturity scale raw canonical shape-checked rule-derived certified

Inbound mentions (1)

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presupposesStrangStepStructurePresupposes Strang Step Structure(1)

Other facts (17)

The long tail: predicates that appear too rarely to warrant their own section. Filter or scroll to find a specific one. Each row links to its source.

17 facts
PredicateValueRef
AllocatesLaplacian 1[5]
AllocatesCommutator Term[5]
AllocatesSecond Laplacian[5]
Rdf:typeAlgorithm Step[4]
Rdf:typeComputational Step[5]
Consists Of5 Operations{}[1]
Numerical Integration Method{}[1]
Has Peak Allocations~4 field sizes[2]
Allocates Laplacian1x field[2]
Allocates Second Laplacian1x field[2]
Could Fuse to Reduce Overhead to2x[2]
Existstrue[2]
Allocates Commutator Termndim x field + 1x field[2]
Optimized byKernel Fusion[3]
Dispatch Count5[4]
Accumulated Overhead0.000075[4]
Peak Allocation~4 allocations of field size[5]

Timeline

Timeline axis is valid_time — when each source says the fact was true in the world, not when Dontopedia learned about it. Retracted rows are kept for provenance; coloured stripes indicate the context kind.

consistsOf5Operationsblah/watt-activation/part-528
{}
numericalIntegrationMethodblah/watt-activation/part-528
{}
hasPeakAllocationsblah/watt-activation/part-539
~4 field sizes
allocatesLaplacianblah/watt-activation/part-539
1x field
allocatesSecondLaplacianblah/watt-activation/part-539
1x field
couldFuseToReduceOverheadToblah/watt-activation/part-539
2x
existsblah/watt-activation/part-539
true
allocatesCommutatorTermblah/watt-activation/part-539
ndim x field + 1x field
labelblah/watt-activation/525
Strang step
optimizedByblah/watt-activation/525
ex:kernel-fusion
typeblah/watt-activation/524
ex:AlgorithmStep
dispatchCountblah/watt-activation/524
5
accumulatedOverheadblah/watt-activation/524
0.000075
typedocument/032782f9-8294-4e80-932c-a9d8e3ec1504
ex:ComputationalStep
allocatesdocument/032782f9-8294-4e80-932c-a9d8e3ec1504
ex:laplacian-1
allocatesdocument/032782f9-8294-4e80-932c-a9d8e3ec1504
ex:commutator-term
allocatesdocument/032782f9-8294-4e80-932c-a9d8e3ec1504
ex:second-laplacian
peakAllocationdocument/032782f9-8294-4e80-932c-a9d8e3ec1504
~4 allocations of field size

References (5)

5 references
  1. [1]Part 5282 facts
    ctx:discord/blah/watt-activation/part-528
  2. [2]Part 5396 facts
    ctx:discord/blah/watt-activation/part-539
  3. [3]5252 facts
    ctx:discord/blah/watt-activation/525
    • full textwatt-activation-525
      text/plain3 KBdoc:agent/watt-activation-525/133fb518-fad6-4e16-a093-f95c1d94dda4
      Show excerpt
      [2026-03-23 01:57] xenonfun: ⏺ 16.7 million grid points, 384 MB, 104M point-updates/s, 13.1 GFLOP/s. That's 10x the original single-core throughput at scale. Rayon is fully saturating all M4 performance cores. The scaling curve shows we'
  4. [4]5243 facts
    ctx:discord/blah/watt-activation/524
    • full textwatt-activation-524
      text/plain3 KBdoc:agent/watt-activation-524/7be280bc-6f35-4f26-ab03-e8a9220e30ed
      Show excerpt
      [2026-03-23 01:54] xenonfun: Performance Results ``` ┌───────────┬───────────────┬───────────────┬─────────┐ │ Grid size │ Before │ After │ Speedup │ ├───────────┼───────────────┼───────────────┼─────────┤ │ n=512
  5. ctx:claims/document/032782f9-8294-4e80-932c-a9d8e3ec1504
    • full textxenonfun: ⏺ The Strang step allocates: laplacian (1× field), commutator_term (which intern
      text/plain407 Bdiscord:convmsg/9196
      Show excerpt
      xenonfun: ⏺ The Strang step allocates: laplacian (1× field), commutator_term (which internally allocates gradient at ndim × field + commutator at 1× field), then a second laplacian. That's ~4 allocations of field size at peak. We could fu

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