Improve CI times (#2826)

* Try re-enabling jumbo tests

* Fix exit(1)

* Remove unused Jenkins functions

* Add param to disable Jumbo tests for debugging

* Fix include order, avoid namespaces for now
* Trying alt parallel scheme

* Add missing include for idas_system test

* Namespace some tests to avoid jumbo collisions

* Fix fragile O0 test

* Fix formatting

* Clean up

* See if O1 is faster for mix unit

* Namespace some OpenGL tests

* O0 for make-headers

* Missing }

* Debug: skip unit for now

* Remove bad copy/pasted test

* Namespaces

* Fix GHA

* Update jenkinsfile

* Try to debug segfault

* Full run

* Remove debug attempt

* Group opencl tests with other longer-running tests

* Try O=1 in Windows tests

* More consistently use -j2 in GHA

* O1 during math-lib build

* Windows out of memory fix

* Use O3 on develop and if requested

* Namespacing

* Format

* Fix rev/functor jumbo tests

* Format

* Update Jenkinsfile

* Fix MPI tests

* Always fail fast for parallel

.github/workflows/header_checks.yml

@@ -34,7 +34,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '2.x'
+        python-version: '3.x'
 
     - name: Print g++/mingw32-make version and path
       run: |
@@ -46,7 +46,7 @@ jobs:
 
     - name: Build Math libs
       shell: powershell
-      run: mingw32-make -f make/standalone math-libs
+      run: mingw32-make -f make/standalone math-libs -j2
 
     - name: Run header tests
       shell: powershell

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '2.x'
+        python-version: '3.x'
     - uses: r-lib/actions/setup-r@v2
       with:
         r-version: 4.1.3
@@ -52,7 +52,9 @@ jobs:
 
     - name: Build Math libs
       shell: powershell
-      run: mingw32-make -f make/standalone math-libs
+      run: |
+        Add-Content make\local "O=1`n"
+        mingw32-make -f make/standalone math-libs -j2
     - name: Add TBB to PATH
       shell: powershell
       run: echo "D:/a/math/math/lib/tbb" | Out-File -Append -FilePath $env:GITHUB_PATH -Encoding utf8
@@ -79,7 +81,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '2.x'
+        python-version: '3.x'
     - uses: r-lib/actions/setup-r@v2
       with:
         r-version: 4.1.3
@@ -99,7 +101,9 @@ jobs:
 
     - name: Build Math libs
       shell: powershell
-      run: mingw32-make -f make/standalone math-libs
+      run: |
+        Add-Content make\local "O=1`n"
+        mingw32-make -f make/standalone math-libs -j2
     - name: Add TBB to PATH
       shell: powershell
       run: echo "D:/a/math/math/lib/tbb" | Out-File -Append -FilePath $env:GITHUB_PATH -Encoding utf8
@@ -109,12 +113,12 @@ jobs:
     - name: Run fwd unit tests and all the mix tests except those in mix/fun
       shell: powershell
       run: |
-        python.exe runTests.py test/unit/math/fwd
-        python.exe runTests.py test/unit/math/mix/core
-        python.exe runTests.py test/unit/math/mix/functor
-        python.exe runTests.py test/unit/math/mix/meta
-        python.exe runTests.py test/unit/math/mix/prob
-        python.exe runTests.py test/unit/math/mix/*_test.cpp
+        python.exe runTests.py test/unit/math/fwd -j2
+        python.exe runTests.py test/unit/math/mix/core -j2
+        python.exe runTests.py test/unit/math/mix/functor -j2
+        python.exe runTests.py test/unit/math/mix/meta -j2
+        python.exe runTests.py test/unit/math/mix/prob -j2
+        python.exe runTests.py test/unit/math/mix/*_test.cpp -j2
 
     - name: Upload gtest_output xml
       uses: actions/upload-artifact@v3
@@ -130,7 +134,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '2.x'
+        python-version: '3.x'
     - uses: r-lib/actions/setup-r@v2
       with:
         r-version: 4.1.3
@@ -150,7 +154,9 @@ jobs:
 
     - name: Build Math libs
       shell: powershell
-      run: mingw32-make -f make/standalone math-libs
+      run: |
+        Add-Content make\local "O=1`n"
+        mingw32-make -f make/standalone math-libs -j2
     - name: Add TBB to PATH
       shell: powershell
       run: echo "D:/a/math/math/lib/tbb" | Out-File -Append -FilePath $env:GITHUB_PATH -Encoding utf8
@@ -176,7 +182,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '2.x'
+        python-version: '3.x'
     - uses: r-lib/actions/setup-r@v2
       with:
         r-version: 4.1.3
@@ -196,7 +202,9 @@ jobs:
 
     - name: Build Math libs
       shell: powershell
-      run: mingw32-make -f make/standalone math-libs
+      run: |
+        Add-Content make\local "O=1`n"
+        mingw32-make -f make/standalone math-libs -j2
     - name: Add TBB to PATH
       shell: powershell
       run: echo "D:/a/math/math/lib/tbb" | Out-File -Append -FilePath $env:GITHUB_PATH -Encoding utf8