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improve inference of CPU_THREADS in Sys.__init__ #54384

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Merged
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May 7, 2024
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improve inference of CPU_THREADS in Sys.__init__ #54384

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2 changes: 1 addition & 1 deletion base/sysinfo.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -147,7 +147,7 @@ function __init__()
end
global CPU_THREADS = if env_threads !== nothing
env_threads = tryparse(Int, env_threads)
if !(env_threads isa Int && env_threads > 0)
if env_threads === nothing || env_threads <= 0
env_threads = Int(ccall(:jl_cpu_threads, Int32, ()))
Core.print(Core.stderr, "WARNING: couldn't parse `JULIA_CPU_THREADS` environment variable. Defaulting Sys.CPU_THREADS to $env_threads.\n")
end
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