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Implement MPSMatrixSolve #402

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vboussange opened this issue Jul 27, 2024 · 2 comments · May be fixed by #145
Open

Implement MPSMatrixSolve #402

vboussange opened this issue Jul 27, 2024 · 2 comments · May be fixed by #145

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@vboussange
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Hey there,

using Metal
A = Metal.randn(100,100)
b = Metal.randn(100,1)
A\b

throws

ERROR: MethodError: no method matching getrs!(::Char, ::MtlMatrix{Float32, Private}, ::MtlVector{UInt32, Private}, ::Matrix{Float32})

Any idea on what is happening?
@tgymnich
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tgymnich commented Jul 27, 2024 •
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Solving of linear equations is not yet implemented in Metal.jl (see #145). However you can already use LU factorisation in the meantime.

using LinearAlgebra
A = Metal.randn(100,100)
lua = lu(A)
# ...

@christiangnrd christiangnrd linked a pull request Aug 28, 2024 that will close this issue
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@christiangnrd christiangnrd changed the title Backslash operator failing Implement MPSMatrixSolve Aug 28, 2024
@cortner
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cortner commented Apr 17, 2025

How would you use the lu factorisation if back-substitution is not implemented? I would also be extremely grateful if the full Metal linear algebra suite (small as it is) could be interfaced.

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MPS solve tgymnich/Metal.jl
4 participants
@cortner @tgymnich @vboussange @christiangnrd