Combine PETSc.jl with KernelAbstractions/CUDA.jl#237

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Commits on Apr 24, 2026

add ex19 (first version)
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Commits on Apr 26, 2026

GPU/CPu logic (mg not yet working)

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make mg work

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Commits on Apr 27, 2026

use colorring

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MPI support

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mg working (GPU + CPU, serial + parallel)

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use CString for MatType/VecType;

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code refactor part 1
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code refactor part 2

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add gpu doc page
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grammar
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optimizations

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Commits on Apr 28, 2026