Merge pull request #2577 from lte678/fix-ci-precompile-hang

Fix hang in BuildKite CI

Author: ChrisRackauckas

.buildkite/pipeline.yml

@@ -38,6 +38,7 @@ steps:
     env:
       BUILDKITE_PLUGIN_JULIA_VERSION: "{{matrix.version}}"
       GROUP: "{{matrix.group}}"
+      JULIA_NUM_THREADS: 2
     plugins:
       - JuliaCI/julia#v1
       - staticfloat/metahook:
@@ -49,7 +50,6 @@ steps:
             '
       - JuliaCI/julia-test#v1:
           coverage: false
-          julia_args: "--threads=auto"
     agents:
       os: "linux"
       queue: "juliaecosystem"

test/multithreading/ode_extrapolation_tests.jl

@@ -1,6 +1,8 @@
 # Import packages
 using OrdinaryDiffEqExtrapolation, DiffEqDevTools, Test, Random
 
+println("Running on $(Threads.nthreads()) thread(s).")
+
 # Define test problems
 # Note that the time span in ODEProblemLibrary is given by
 # Float64 numbers