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Linear solve A \ v where A and v are sparse fails #32668

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thudso opened this issue Jul 24, 2019 · 1 comment
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Linear solve A \ v where A and v are sparse fails #32668

thudso opened this issue Jul 24, 2019 · 1 comment

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@thudso
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thudso commented Jul 24, 2019 •
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Linear solves of sparse systems defined using SparseArrays (where both matrix and vector are sparse) currently fail.

Minimal example:
using SparseArrays; A = sprand(2,2,0.9); v = sparsevec([1;2],randn(2)); A \ v

This produces:
ERROR: MethodError: no method matching ldiv!(::SuiteSparse.UMFPACK.UmfpackLU{Float64,Int64}, ::SparseVector{Float64,Int64})
@andreasnoack
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Dup of JuliaLang/LinearAlgebra.jl#381

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@andreasnoack @thudso