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[WIP] Swap serial lu for MPI parallel qr using MPIQR.jl #307

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@jwscook jwscook commented Jan 17, 2025

This PR removes the lu serial solve and replaces it with an MPI block-parallel QR decomposition via MPIQR.jl. This PR only changes the code relevant to the actual solve, not the code for configuration. This means the rest of the code still referes to the lu solve, when in fact it will performing a qr solve.

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jwscook commented Jan 21, 2025

Right now MPIQR.jl is unregistered so you have to pkg> add [email protected]:jwscook/MPIQR.jl.git

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In case someone else wants to try this

add [email protected]:jwscook/MPIQR.jl.git

gave me a prompt asking for a private key to access Github, but just repeated the prompt when I gave it the key. Using instead

add https://github.com/jwscook/MPIQR.jl.git

just worked.

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