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Initialize HYPRE before creating objects when using plain Julia arrays #1001

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Initialize HYPRE before creating objects when using plain Julia arrays #1001

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9d0531c
Initialize HYPRE before creating objects when using plain Julia arrays
AJ0070 Mar 13, 2026
424980f
Initialize HYPRE before auto-constructing HYPRE arrays in `init`
AJ0070 Jun 4, 2026
65d2931
Merge branch 'main' into fix/777
AJ0070 Jun 4, 2026
44edf23
Merge branch 'fix/777' of https://github.com/AJ0070/LinearSolve.jl in…
AJ0070 Jun 4, 2026
8a2a558
fix
AJ0070 Jun 4, 2026
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10 changes: 10 additions & 0 deletions ext/LinearSolveHYPREExt.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,14 @@ is_distributed_comm(comm) = !(comm === nothing) && comm != MPI.COMM_NULL && MPI.
auto_hypre_matrix(::HYPREAlgorithm, A::HYPREMatrix) = A
auto_hypre_vector(::HYPREAlgorithm, b::HYPREVector) = b

function ensure_hypre_initialized(A, b, u0)
if A isa HYPREMatrix && b isa HYPREVector && (u0 === nothing || u0 isa HYPREVector)
return nothing
end
HYPRE.Init()
return nothing
end

function auto_hypre_matrix(alg::HYPREAlgorithm, A)
if !is_distributed_comm(alg.comm)
return A isa HYPREMatrix ? A : HYPREMatrix(A)
Expand Down Expand Up @@ -178,6 +186,8 @@ function SciMLBase.init(
init_cache_verb = verb_spec
end

# Auto-construction of HYPREMatrix/HYPREVector touches MPI inside HYPRE.jl.
ensure_hypre_initialized(A, b, u0)
A = auto_hypre_matrix(alg, A)
b = auto_hypre_vector(alg, b)
u0 = u0 === nothing ? nothing : auto_hypre_vector(alg, u0)
Expand Down
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