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allow pgm to generate weight without symmetrization - #2071

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create_hermitian_weight_pgm
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allow pgm to generate weight without symmetrization#2071
yhmtsai wants to merge 2 commits into
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create_hermitian_weight_pgm

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@yhmtsai

@yhmtsai yhmtsai commented Aug 19, 2026

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We previously always generate the weight matrix = (abs(mtx) + abs(mtx'))/2, but it is unnecessary for hermitian matrix. We can simply have weight matrix = abs(mtx), which can reduce the memory footprint during generation.

Another question: I am thinking whether abs(mtx + mtx')/2 makes more sense?

@ginkgo-bot ginkgo-bot added reg:testing This is related to testing. mod:core This is related to the core module. mod:reference This is related to the reference module. type:multigrid This is related to multigrid labels Aug 19, 2026
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yhmtsai force-pushed the create_hermitian_weight_pgm branch from d60284c to 1281634 Compare August 21, 2026 14:29
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mod:core This is related to the core module. mod:reference This is related to the reference module. reg:testing This is related to testing. type:multigrid This is related to multigrid

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