JuliaArrays / JuliaArrays/StaticArrays.jl

lu(::SizedMatrix) fails for large dimension

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Dominant language
Julia
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Merged PRs (30d)
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Description

julia> VERSION
v"1.8.0-rc1.41"

(@v1.8) pkg> st StaticArrays
Status `~/.julia/environments/v1.8/Project.toml`
  [90137ffa] StaticArrays v1.5.0

julia> using StaticArrays, LinearAlgebra

julia> N = 149
149

julia> lu(SizedMatrix{N,N}(randn(N, N)))
Internal error: encountered unexpected error in runtime:
StackOverflowError()
process_node! at ./compiler/ssair/ir.jl:989
process_newnode! at ./compiler/ssair/ir.jl:1195
iterate at ./compiler/ssair/ir.jl:1295
process_newnode! at ./compiler/ssair/ir.jl:1203
iterate at ./compiler/ssair/ir.jl:1295

repeats forever.

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Research direction

Reproduce the failure using Julia v1.8.0-rc1.41, StaticArrays v1.5.0, and lu(SizedMatrix{149,149}(randn(149, 149))). Start by investigating the compiler StackOverflowError shown in the report. Done means lu on this large SizedMatrix no longer reaches the repeated compiler error.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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