updated Dockerfile; updated gitlab runner command to avoid mpi issues

.gitlab-ci.yml

@@ -6,14 +6,10 @@ stages:
 
 build:
   stage: build
-  artifacts:
-    expire_in: 1 day
-    paths:
-      - code/bin/
   script:
     - git submodule update --init --recursive
     - cd code/build/debug
-    - cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=True -DCMAKE_EXPORT_COMPILE_COMMANDS=True ../../
+    - cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=True ../../
     - ninja
   only:
     refs:
@@ -29,10 +25,13 @@ build:
       
 unit_tests:
   stage: unit_tests
-  dependencies:
-    - build
   script:
-    - ./code/bin/unit_tests
+    - git submodule update --init --recursive
+    - cd code/build/release
+    - cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DBUILD_TESTING=True ../../
+    - ninja
+    - cd ../../bin
+    - ./unit_tests
   only:
     refs:
       - master

scripts/Dockerfile

-FROM ubuntu:18.04
+FROM ubuntu:20.04
 
-ENV CXX=/usr/bin/g++ \
-    CC=/usr/bin/gcc \
-    LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"
+ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"
 
 RUN apt-get update \
-    && apt-get install -qq software-properties-common \
-    && add-apt-repository ppa:ubuntu-toolchain-r/test \
-    && apt-get update \
-    && DEBIAN_FRONTEND=noninteractive apt-get install -qq --no-install-recommends \
-       gcc-9 \
-       g++-9 \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -qq \
+       gcc \
+       g++ \
        libopenmpi-dev \
+       openmpi-bin \
        libblas-dev \
        liblapack-dev \
        git \
        make \
        ninja-build \
+       cmake \
        wget \
+       ssh \
        libssl-dev \
        libxt-dev \
        libgl1-mesa-dev \
        libgsl-dev \
-    && update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 100 \
-    && update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++-9 100 \
-    && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 100 \
-    && update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-9 100 \
-    && apt-get clean && \
-    && apt-get autoremove --purge && \
+    && apt-get clean \
+    && apt-get autoremove --purge \
     && rm -rf /var/lib/apt/lists/* 
 
-RUN wget --no-check-certificate --quiet https://cmake.org/files/v3.16/cmake-3.16.4.tar.gz \
-    && tar xzf cmake-3.16.4.tar.gz \
-    && cd cmake-3.16.4 \
-    && ./bootstrap > /dev/null \
-    && make -s -j${nproc} \
-    && make -s install > /dev/null \
-    && cd - \
-    && rm -rf cmake-*
-    
 RUN wget --no-check-certificate --quiet https://www.vtk.org/files/release/8.2/VTK-8.2.0.tar.gz \
     && tar xzf VTK-8.2.0.tar.gz \
     && mkdir VTK-8.2.0/build \
     && cd VTK-8.2.0/build \
-    && cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_DOCUMENTATION=OFF -DBUILD_TESTING=OFF  ../ \
-    && make -s -j${nproc} \
-    && make -s install > /dev/null \
+    && cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DBUILD_DOCUMENTATION=OFF -DBUILD_TESTING=OFF  ../ \
+    && ninja \
+    && ninja install > /dev/null \
     && cd - \
     && rm -rf VTK-*