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Add CUDSS extension for LU factorization instances #433

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Apr 19, 2024
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Add CUDSS extension for LU factorization instances #433

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2 changes: 2 additions & 0 deletions Project.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ SuiteSparse = "4607b0f0-06f3-5cda-b6b1-a6196a1729e9"
BandedMatrices = "aae01518-5342-5314-be14-df237901396f"
BlockBandedMatrices = "ffab5731-97b5-5995-9138-79e8c1846df0"
CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
CUDSS = "45b445bb-4962-46a0-9369-b4df9d0f772e"
ChainRules = "082447d4-558c-5d27-93f4-14fc19e9eca2"
GPUArraysCore = "46192b85-c4d5-4398-a991-12ede77f4527"
ReverseDiff = "37e2e3b7-166d-5795-8a7a-e32c996b4267"
Expand All @@ -22,6 +23,7 @@ Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
ArrayInterfaceBandedMatricesExt = "BandedMatrices"
ArrayInterfaceBlockBandedMatricesExt = "BlockBandedMatrices"
ArrayInterfaceCUDAExt = "CUDA"
ArrayInterfaceCUDSSExt = "CUDSS"
ArrayInterfaceChainRulesExt = "ChainRules"
ArrayInterfaceGPUArraysCoreExt = "GPUArraysCore"
ArrayInterfaceReverseDiffExt = "ReverseDiff"
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17 changes: 17 additions & 0 deletions ext/ArrayInterfaceCUDSSExt.jl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
module ArrayInterfaceCUDSSExt

using ArrayInterface
using CUDSS

function ArrayInterface.lu_instance(A::CUDSS.CuSparseMatrixCSR)
ArrayInterface.LinearAlgebra.checksquare(A)
fact = CudssSolver(A, "G", 'F')
T = eltype(A)
n = size(A,1)
x = CudssMatrix(T, n)
b = CudssMatrix(T, n)
cudss("analysis", fact, x, b)
fact
end

end
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