Exploit symmetry in the Hessian - #844

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devmotion wants to merge 14 commits into

devmotion/symmetric-hessian

Commits on Aug 16, 2026

exploit symmetry in the hessian
KristofferC
committed
0091edd

Commits on Aug 17, 2026

Address symmetric Hessian review feedback
KristofferC
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0c04e90

Commits on Aug 31, 2026

Merge #837, KristofferC's symmetric Hessian sweep
devmotion
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ee2cc8c
Hold in the Hessian config what the symmetric sweep reads

devmotion
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claude
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e6c6a45
Read the same triangle at every chunk size

devmotion
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claude
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5d1d475
Build only the zero a layer needs, and cover the paths left untested

devmotion
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claude
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705e7b1
Index the Hessian by the linear indices of `x`

devmotion
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claude
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907ccd1
Restore the result shape check dropped with `extract_jacobian!`

devmotion
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claude
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90d9496
Cover the two error paths Codecov flagged, and pin the messages
devmotion
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8070750
Check the Hessian gradient buffer, not only the Hessian

devmotion
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claude
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2f11c0b
Build the triangular position vector at its final size

devmotion
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claude
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2ef622c
Give the structured Hessian testset a reference that can fail

devmotion
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claude
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40c2e09
Guard the allocation-free `hessian!`, and rename the seeding testset

devmotion
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claude
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30f6c69

Commits on Sep 1, 2026

Give the Hessian's two dual layers distinct tags

devmotion
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claude
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b42dca2