From 9ddaccc16412d74bf4845dd9c093b65de2f36617 Mon Sep 17 00:00:00 2001
From: Josh Day <emailjoshday@gmail.com>
Date: Wed, 12 Jul 2023 10:51:45 -0400
Subject: [PATCH] try to fix ci...

---
 .github/workflows/julia-tests.yaml | 4 ++--
 src/SimulationService.jl           | 8 ++++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/julia-tests.yaml b/.github/workflows/julia-tests.yaml
index c4923cf..615e19a 100644
--- a/.github/workflows/julia-tests.yaml
+++ b/.github/workflows/julia-tests.yaml
@@ -2,8 +2,6 @@
 # Julia Tests
 
 name: Correctness - Julia
-env:
-  JULIA_NUM_THREADS: 2
 on:
   push:
     branches: ['main']
@@ -12,6 +10,8 @@ on:
 
 jobs:
   test:
+    env:
+      JULIA_NUM_THREADS: 2
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
diff --git a/src/SimulationService.jl b/src/SimulationService.jl
index 08703e1..0152e3d 100644
--- a/src/SimulationService.jl
+++ b/src/SimulationService.jl
@@ -71,7 +71,6 @@ end
 
 #-----------------------------------------------------------------------------# start!
 function start!(; host=SIMSERVICE_HOST, port=SIMSERVICE_PORT, kw...)
-    Threads.nthreads() > 1 || error("Server require `Thread.nthreads() > 1`.  Start Julia via `julia --threads=auto`.")
     SIMSERVICE_ENABLE_TDS || @warn "TDS is disabled.  Some features will not work."
     stop!()  # Stop server if it's already running
     server_url[] = "http://$host:$port"
@@ -91,7 +90,12 @@ function start!(; host=SIMSERVICE_HOST, port=SIMSERVICE_PORT, kw...)
     # Oxygen.mergeschema(swagger)
 
     # server:
-    Oxygen.serveparallel(; host, port, async=true, kw...)
+    if Threads.nthreads() > 1  # true in production
+        Oxygen.serveparallel(; host, port, async=true, kw...)
+    else
+        @warn "Server starting single-threaded.  This should only be used for testing. Try starting Julia via `julia --threads=auto`."
+        Oxygen.serve(; host, port, async=true, kw...)
+    end
 end
 
 #-----------------------------------------------------------------------------# stop!