Support CUDA v6/CUDSS v0.7 and use cuSOLVER as dependency instead of CUDA

Project.toml

@@ -31,7 +31,7 @@ AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 AlgebraicMultigrid = "2169fc97-5a83-5252-b627-83903c6c433c"
 BandedMatrices = "aae01518-5342-5314-be14-df237901396f"
 BlockDiagonals = "0a1fb500-61f7-11e9-3c65-f5ef3456f9f0"
-CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+cuSOLVER = "887afef0-6a32-4de5-add4-7827692ba8fc"
 CUDSS = "45b445bb-4962-46a0-9369-b4df9d0f772e"
 CUSOLVERRF = "a8cc9031-bad2-4722-94f5-40deabb4245c"
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
@@ -66,7 +66,7 @@ LinearSolveAlgebraicMultigridExt = "AlgebraicMultigrid"
 LinearSolveBLISExt = ["blis_jll", "LAPACK_jll"]
 LinearSolveBandedMatricesExt = "BandedMatrices"
 LinearSolveBlockDiagonalsExt = "BlockDiagonals"
-LinearSolveCUDAExt = "CUDA"
+LinearSolveCUDAExt = ["cuSOLVER"]
 LinearSolveCUDSSExt = "CUDSS"
 LinearSolveCUSOLVERRFExt = ["CUSOLVERRF", "SparseArrays"]
 LinearSolveChainRulesCoreExt = "ChainRulesCore"
@@ -100,8 +100,8 @@ Aqua = "0.8"
 ArrayInterface = "7.19"
 BandedMatrices = "1.8"
 BlockDiagonals = "0.2"
-CUDA = "5.5, 6"
-CUDSS = "0.6.3, 0.7"
+cuSOLVER = "6"
+CUDSS = "0.7"
 CUSOLVERRF = "0.2.6"
 ChainRulesCore = "1.25.1"
 CliqueTrees = "1.13.1"

ext/LinearSolveCUDAExt.jl

@@ -1,6 +1,9 @@
 module LinearSolveCUDAExt
 
-using CUDA
+using cuSOLVER
+CUDACore = cuSOLVER.CUDACore
+cuSPARSE = cuSOLVER.cuSPARSE
+
 using LinearSolve: LinearSolve, is_cusparse, defaultalg, cudss_loaded, DefaultLinearSolver,
     DefaultAlgorithmChoice, ALREADY_WARNED_CUDSS, LinearCache,
     needs_concrete_A,
@@ -11,20 +14,20 @@ using LinearSolve: LinearSolve, is_cusparse, defaultalg, cudss_loaded, DefaultLi
 using LinearSolve.LinearAlgebra, LinearSolve.SciMLBase, LinearSolve.ArrayInterface
 using SciMLBase: AbstractSciMLOperator
 
-LinearSolve.usecuda(x::Nothing) = CUDA.functional()
+LinearSolve.usecuda(x::Nothing) = CUDACore.functional()
 
 function LinearSolve.is_cusparse(
         A::Union{
-            CUDA.CUSPARSE.CuSparseMatrixCSR, CUDA.CUSPARSE.CuSparseMatrixCSC,
+            cuSPARSE.CuSparseMatrixCSR, cuSPARSE.CuSparseMatrixCSC,
         }
     )
     return true
 end
-LinearSolve.is_cusparse_csr(::CUDA.CUSPARSE.CuSparseMatrixCSR) = true
-LinearSolve.is_cusparse_csc(::CUDA.CUSPARSE.CuSparseMatrixCSC) = true
+LinearSolve.is_cusparse_csr(::cuSPARSE.CuSparseMatrixCSR) = true
+LinearSolve.is_cusparse_csc(::cuSPARSE.CuSparseMatrixCSC) = true
 
 function LinearSolve.defaultalg(
-        A::CUDA.CUSPARSE.CuSparseMatrixCSR{Tv, Ti}, b,
+        A::cuSPARSE.CuSparseMatrixCSR{Tv, Ti}, b,
         assump::OperatorAssumptions{Bool}
     ) where {Tv, Ti}
     return if LinearSolve.cudss_loaded(A)
@@ -39,7 +42,7 @@ function LinearSolve.defaultalg(
 end
 
 function LinearSolve.defaultalg(
-        A::CUDA.CUSPARSE.CuSparseMatrixCSC, b,
+        A::cuSPARSE.CuSparseMatrixCSC, b,
         assump::OperatorAssumptions{Bool}
     )
     if LinearSolve.cudss_loaded(A)
@@ -50,7 +53,7 @@ function LinearSolve.defaultalg(
     return LinearSolve.DefaultLinearSolver(LinearSolve.DefaultAlgorithmChoice.KrylovJL_GMRES)
 end
 
-function LinearSolve.error_no_cudss_lu(A::CUDA.CUSPARSE.CuSparseMatrixCSR)
+function LinearSolve.error_no_cudss_lu(A::cuSPARSE.CuSparseMatrixCSR)
     if !LinearSolve.cudss_loaded(A)
         error("CUDSS.jl is required for LU Factorizations on CuSparseMatrixCSR. Please load this library.")
     end
@@ -63,12 +66,12 @@ function SciMLBase.solve!(
     )
     if cache.isfresh
         cacheval = LinearSolve.@get_cacheval(cache, :CudaOffloadLUFactorization)
-        fact = lu(CUDA.CuArray(cache.A))
+        fact = lu(CUDACore.CuArray(cache.A))
         cache.cacheval = fact
         cache.isfresh = false
     end
     fact = LinearSolve.@get_cacheval(cache, :CudaOffloadLUFactorization)
-    y = Array(ldiv!(CUDA.CuArray(cache.u), fact, CUDA.CuArray(cache.b)))
+    y = Array(ldiv!(CUDACore.CuArray(cache.u), fact, CUDACore.CuArray(cache.b)))
     cache.u .= y
     return SciMLBase.build_linear_solution(alg, y, nothing, cache)
 end
@@ -79,28 +82,28 @@ function LinearSolve.init_cacheval(
         assumptions::OperatorAssumptions
     )
     # Check if CUDA is functional before creating CUDA arrays
-    if !CUDA.functional()
+    if !CUDACore.functional()
         return nothing
     end
 
     T = eltype(A)
     noUnitT = typeof(zero(T))
     luT = LinearAlgebra.lutype(noUnitT)
-    ipiv = CuVector{Int32}(undef, 0)
+    ipiv = CUDACore.CuVector{Int32}(undef, 0)
     info = zero(LinearAlgebra.BlasInt)
-    return LU{luT}(CuMatrix{Float64}(undef, 0, 0), ipiv, info)
+    return LU{luT}(CUDACore.CuMatrix{Float64}(undef, 0, 0), ipiv, info)
 end
 
 function SciMLBase.solve!(
         cache::LinearSolve.LinearCache, alg::CudaOffloadQRFactorization;
         kwargs...
     )
     if cache.isfresh
-        fact = qr(CUDA.CuArray(cache.A))
+        fact = qr(CUDACore.CuArray(cache.A))
         cache.cacheval = fact
         cache.isfresh = false
     end
-    y = Array(ldiv!(CUDA.CuArray(cache.u), cache.cacheval, CUDA.CuArray(cache.b)))
+    y = Array(ldiv!(CUDACore.CuArray(cache.u), cache.cacheval, CUDACore.CuArray(cache.b)))
     cache.u .= y
     return SciMLBase.build_linear_solution(alg, y, nothing, cache)
 end
@@ -111,11 +114,11 @@ function LinearSolve.init_cacheval(
         assumptions::OperatorAssumptions
     )
     # Check if CUDA is functional before creating CUDA arrays
-    if !CUDA.functional()
+    if !CUDACore.functional()
         return nothing
     end
 
-    return qr(CUDA.CuArray(A))
+    return qr(CUDACore.CuArray(A))
 end
 
 # Keep the deprecated CudaOffloadFactorization working by forwarding to QR
@@ -124,11 +127,11 @@ function SciMLBase.solve!(
         kwargs...
     )
     if cache.isfresh
-        fact = qr(CUDA.CuArray(cache.A))
+        fact = qr(CUDACore.CuArray(cache.A))
         cache.cacheval = fact
         cache.isfresh = false
     end
-    y = Array(ldiv!(CUDA.CuArray(cache.u), cache.cacheval, CUDA.CuArray(cache.b)))
+    y = Array(ldiv!(CUDACore.CuArray(cache.u), cache.cacheval, CUDACore.CuArray(cache.b)))
     cache.u .= y
     return SciMLBase.build_linear_solution(alg, y, nothing, cache)
 end
@@ -138,19 +141,19 @@ function LinearSolve.init_cacheval(
         maxiters::Int, abstol, reltol, verbose::Union{LinearVerbosity, Bool},
         assumptions::OperatorAssumptions
     )
-    return qr(CUDA.CuArray(A))
+    return qr(CUDACore.CuArray(A))
 end
 
 for AlgType in (SparspakFactorization, LinearSolve.QRFactorization)
     @eval function LinearSolve.init_cacheval(
-            ::$AlgType, A::CUDA.CUSPARSE.CuSparseMatrixCSR, b, u,
+            ::$AlgType, A::cuSPARSE.CuSparseMatrixCSR, b, u,
             Pl, Pr, maxiters::Int, abstol, reltol,
             verbose::Union{LinearVerbosity, Bool}, assumptions::OperatorAssumptions
         )
         return nothing
     end
     @eval function LinearSolve.init_cacheval(
-            ::$AlgType, A::CUDA.CUSPARSE.CuSparseMatrixCSC, b, u,
+            ::$AlgType, A::cuSPARSE.CuSparseMatrixCSC, b, u,
             Pl, Pr, maxiters::Int, abstol, reltol,
             verbose::Union{LinearVerbosity, Bool}, assumptions::OperatorAssumptions
         )
@@ -159,14 +162,14 @@ for AlgType in (SparspakFactorization, LinearSolve.QRFactorization)
 end
 
 function LinearSolve.init_cacheval(
-        ::KLUFactorization, A::CUDA.CUSPARSE.CuSparseMatrixCSR, b, u,
+        ::KLUFactorization, A::cuSPARSE.CuSparseMatrixCSR, b, u,
         Pl, Pr, maxiters::Int, abstol, reltol, verbose::Union{LinearVerbosity, Bool}, assumptions::OperatorAssumptions
     )
     return nothing
 end
 
 function LinearSolve.init_cacheval(
-        ::UMFPACKFactorization, A::CUDA.CUSPARSE.CuSparseMatrixCSR, b, u,
+        ::UMFPACKFactorization, A::cuSPARSE.CuSparseMatrixCSR, b, u,
         Pl, Pr, maxiters::Int, abstol, reltol, verbose::Union{LinearVerbosity, Bool}, assumptions::OperatorAssumptions
     )
     return nothing

ext/LinearSolveCUDSSExt.jl

@@ -3,6 +3,6 @@ module LinearSolveCUDSSExt
 using LinearSolve: LinearSolve, cudss_loaded
 using CUDSS
 
-LinearSolve.cudss_loaded(A::CUDSS.CUDA.CUSPARSE.CuSparseMatrixCSR) = true
+LinearSolve.cudss_loaded(A::CUDSS.cuSPARSE.CuSparseMatrixCSR) = true
 
 end

lib/LinearSolveAutotune/Project.toml

@@ -10,7 +10,7 @@ LinearSolve = {path = "../.."}
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
 CPUSummary = "2a0fbf3d-bb9c-48f3-b0a9-814d99fd7ab9"
-CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+cuSOLVER = "887afef0-6a32-4de5-add4-7827692ba8fc"
 DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 FastLapackInterface = "29a986be-02c6-4525-aec4-84b980013641"
@@ -38,7 +38,7 @@ gh_cli_jll = "5d31d589-30fb-542f-b82d-10325e863e38"
 Base64 = "1"
 BenchmarkTools = "1"
 CPUSummary = "0.2"
-CUDA = "5"
+cuSOLVER = "6"
 DataFrames = "1"
 Dates = "1"
 FastLapackInterface = "2"

lib/LinearSolveAutotune/src/LinearSolveAutotune.jl

@@ -35,7 +35,7 @@ using CPUSummary
 using RecursiveFactorization
 using blis_jll
 using LAPACK_jll
-using CUDA
+using cuSOLVER
 using Metal
 using FastLapackInterface
 

lib/LinearSolveAutotune/src/gpu_detection.jl

@@ -20,18 +20,18 @@ function is_cuda_available()
             if haskey(ENV, "CUDA_VISIBLE_DEVICES") ||
                     (Sys.islinux() && isfile("/proc/driver/nvidia/version")) ||
                     (Sys.iswindows() && success(`where nvidia-smi`))
-                @warn "CUDA hardware may be available but CUDA.jl extension is not loaded. Consider adding `using CUDA` to enable GPU algorithms."
+                @warn "CUDA hardware may be available but CUDA.jl extension is not loaded. Consider adding `using cuSOLVER` or `using CUDA` to enable GPU algorithms."
             end
         catch
             # Silently continue if detection fails
         end
         return false
     end
 
-    # Check if we have CUDA.jl loaded
+    # Check if we have cuSOLVER.jl loaded
     try
-        CUDA = Base.get_extension(LinearSolve, :LinearSolveCUDAExt).CUDA
-        return CUDA.functional()
+        cuSOLVER = Base.get_extension(LinearSolve, :LinearSolveCUDAExt).cuSOLVER
+        return cuSOLVER.functional()
     catch
         return false
     end
@@ -86,38 +86,38 @@ function get_cuda_gpu_info()
     end
 
     try
-        # Get CUDA module from the extension
-        CUDA = ext.CUDA
+        # Get CUDACore module from the extension
+        CUDACore = ext.CUDACore
 
-        # Check if CUDA is functional
-        if !CUDA.functional()
+        # Check if CUDACore is functional
+        if !CUDACore.functional()
             return gpu_info
         end
 
         # Get device information
-        devices = collect(CUDA.devices())
+        devices = collect(CUDACore.devices())
         num_devices = length(devices)
 
         if num_devices > 0
             gpu_info["gpu_count"] = num_devices
 
             # Get information from the first GPU
             first_device = devices[1]
-            gpu_info["gpu_type"] = CUDA.name(first_device)
+            gpu_info["gpu_type"] = CUDACore.name(first_device)
 
             # Convert memory from bytes to GB
-            total_mem_bytes = CUDA.totalmem(first_device)
+            total_mem_bytes = CUDACore.totalmem(first_device)
             gpu_info["gpu_memory_gb"] = round(total_mem_bytes / (1024^3), digits = 2)
 
             # Get compute capability
-            capability = CUDA.capability(first_device)
+            capability = CUDACore.capability(first_device)
             gpu_info["gpu_capability"] = "$(capability.major).$(capability.minor)"
 
             # If multiple GPUs, list all types
             if num_devices > 1
                 gpu_types = String[]
                 for dev in devices
-                    push!(gpu_types, CUDA.name(dev))
+                    push!(gpu_types, CUDACore.name(dev))
                 end
                 gpu_info["gpu_types"] = unique(gpu_types)
             end
@@ -302,7 +302,7 @@ function get_package_versions()
         "LinearSolve",
         "LinearSolveAutotune",
         "RecursiveFactorization",
-        "CUDA",
+        "cuSOLVER",
         "Metal",
         "MKL_jll",
         "BLISBLAS",
@@ -626,9 +626,9 @@ function get_detailed_system_info()
     system_data["cuda_loaded"] = false
     system_data["metal_loaded"] = false
     try
-        # Check if CUDA algorithms are actually available
+        # Check if cuSOLVER (CUDA algorithms) are actually available
         if system_data["cuda_available"]
-            system_data["cuda_loaded"] = isdefined(Main, :CUDA) || haskey(Base.loaded_modules, Base.PkgId(Base.UUID("052768ef-5323-5732-b1bb-66c8b64840ba"), "CUDA"))
+            system_data["cuda_loaded"] = isdefined(Main, :cuSOLVER) || haskey(Base.loaded_modules, Base.PkgId(Base.UUID("887afef0-6a32-4de5-add4-7827692ba8fc"), "cuSOLVER"))
         end
         if system_data["metal_available"]
             system_data["metal_loaded"] = isdefined(Main, :Metal) || haskey(Base.loaded_modules, Base.PkgId(Base.UUID("dde4c033-4e86-420c-a63e-0dd931031962"), "Metal"))

test/gpu/Project.toml

@@ -1,11 +1,11 @@
 [deps]
 BlockDiagonals = "0a1fb500-61f7-11e9-3c65-f5ef3456f9f0"
-CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+CUDACore = "bd0ed864-bdfe-4181-a5ed-ce625a5fdea2"
+cuSPARSE = "b26da814-b3bc-49ef-b0ee-c816305aa060"
 CUDSS = "45b445bb-4962-46a0-9369-b4df9d0f772e"
-CUSOLVERRF = "a8cc9031-bad2-4722-94f5-40deabb4245c"
+cuSOLVER = "887afef0-6a32-4de5-add4-7827692ba8fc"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LinearSolve = "7ed4a6bd-45f5-4d41-b270-4a48e9bafcae"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-