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bump CUDSS version and add CUDSS tests #472

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Merged
merged 3 commits into from
Oct 22, 2025
Merged

bump CUDSS version and add CUDSS tests #472

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797ccdd
bump CUDSS min version
oscardssmith Oct 21, 2025
2ae3e12
test CUDSS
oscardssmith Oct 21, 2025
a266d9f
test CUDSS
oscardssmith Oct 21, 2025
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2 changes: 1 addition & 1 deletion Project.toml
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Expand Up @@ -39,7 +39,7 @@ Adapt = "4"
BandedMatrices = "1"
BlockBandedMatrices = "0.13"
CUDA = "5"
CUDSS = "0.5, 0.6"
CUDSS = "0.6.1"
ChainRules = "1"
ChainRulesCore = "1"
ChainRulesTestUtils = "1"
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3 changes: 2 additions & 1 deletion test/gpu/Project.toml
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@@ -1,3 +1,4 @@
[deps]
CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
Metal = "dde4c033-4e86-420c-a63e-0dd931031962"
CUDSS = "45b445bb-4962-46a0-9369-b4df9d0f772e"
Metal = "dde4c033-4e86-420c-a63e-0dd931031962"
17 changes: 15 additions & 2 deletions test/gpu/cuda.jl
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Original file line number Diff line number Diff line change
@@ -1,7 +1,20 @@
using CUDA
using CUDSS, CUDA, SparseArrays, LinearAlgebra
using CUDA.CUSPARSE
using ArrayInterface

using Test

A_cpu = Float32[1 0; 0 1]
A_dense = CuMatrix(A_cpu)
A_sparse = CuSparseMatrixCSR(sparse(A_cpu))

# Test whether lu_instance throws an error when invoked with an gpu array
@test !isa(try ArrayInterface.lu_instance(CUDA.CuArray([1.f0 1.f0; 1.f0 1.f0])) catch ex ex end, Exception)
lu_inst_dense = ArrayInterface.lu_instance(A_dense)
lu_inst_sparse = ArrayInterface.lu_instance(A_sparse)

# test that lu! is valid when using the inst as scratch
lu_sparse = lu!(lu_inst_sparse, A_sparse)

#test that the resulting lu works
b = CuVector([1f0, 1f0])
@test CUDA.@allowscalar lu_sparse \ b == [1, 1]
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