add github ci compile check for ascent

.github/workflows/insitu.yml

@@ -30,3 +30,42 @@ jobs:
     - name: Build
       run: |
         cmake --build build -j 2
+
+  ascent:
+    name: Ascent
+    runs-on: ubuntu-20.04
+    if: github.event.pull_request.draft == false
+    env:
+      CXX: g++
+      CC: gcc
+      CMAKE_PREFIX_PATH: /ascent/install-debug/lib/cmake/
+    container:
+      image: alpinedav/ascent:ascent-ubuntu-18_2021-11-02-sha458045
+    steps:
+    - uses: actions/checkout@v2
+    - name: Configure
+      run: |
+        . /ascent_docker_setup_env.sh
+        cmake -S . -B build   \
+            -DWarpX_ASCENT=ON \
+            -DWarpX_COMPUTE=NOACC
+    - name: Build
+      run: |
+        . /ascent_docker_setup_env.sh
+        cmake --build build -j 2
+    - name: Test
+      run: |
+        cp Examples/Physics_applications/laser_acceleration/inputs_3d .
+        cp Examples/Physics_applications/laser_acceleration/3d_ascent_actions.yaml ascent_actions.yaml
+        mpiexec -n 2 ./build/bin/warpx \
+          inputs_3d                    \
+            max_step = 40              \
+            diag1.intervals = 30:40:10 \
+            diag1.format = ascent
+    - uses: actions/upload-artifact@v2
+      with:
+        name: ascent-test-artifacts
+        path: |
+          *.png
+          conduit_*
+        if-no-files-found: error

Examples/Physics_applications/laser_acceleration/3d_ascent_actions.yaml

@@ -0,0 +1,76 @@
+#
+# This actions file tests:
+#  Rendering a Contour of Ey
+#  Volume Rendering Ey
+#  Rendering the Electrons Particle mesh
+#  Exporting Blueprint HDF5 files
+#
+-
+  action: add_pipelines
+  pipelines:
+    contour_pipeline:
+      f0:
+        params:
+          field: Ey
+          levels: 16
+        type: contour
+-
+  action: add_scenes
+  scenes:
+    ey_contour_pc:
+      plots:
+        p0:
+          field: Ey
+          pipeline: contour_pipeline
+          type: pseudocolor
+      renders:
+        r1:
+          camera:
+            azimuth: 90.0
+          image_prefix: "ey_contour_pc_"
+    ey_volrend:
+      plots:
+        p0:
+          field: Ey
+          type: volume
+          min_value: -3e+12
+          max_value: 3e+12
+          color_table:
+            name: "Cool to Warm Extended"
+            control_points:
+            -
+              type: "alpha"
+              position: 0.0
+              alpha: 1.0
+            -
+              type: "alpha"
+              position: 0.5
+              alpha: 0.0
+            -
+              type: "alpha"
+              position: 1.0
+              alpha: 1.0
+      renders:
+        r1:
+          camera:
+            azimuth: 90.0
+          image_prefix: "ey_volrend_"
+    uz_pc:
+      plots:
+        p0:
+          field: particle_electrons_uz
+          type: pseudocolor
+      renders:
+        r1:
+          camera:
+            azimuth: 90.0
+          image_prefix: "uz_pc_"
+-
+  action: add_extracts
+  extracts:
+    e1:
+      params:
+        path: ./conduit_blueprint
+        protocol: blueprint/mesh/hdf5
+      type: relay
+