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Creating multigrid hierarchy (e.g., ruge_stuben) allocates too much memory #108

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ma-sadeghi opened this issue Oct 22, 2023 · 0 comments
Open

Creating multigrid hierarchy (e.g., ruge_stuben) allocates too much memory #108

ma-sadeghi opened this issue Oct 22, 2023 · 0 comments

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@ma-sadeghi
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For a test problem (Laplace equation on a 200^3 grid), ruge_stuben allocates ~8 GB of memory. For comparison, LinearSolve.KrylovJL_CG allocates ~90 MB.

Is this normal / can it be optimized?

Thanks!
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