Build scripts and Readme: limit cmake --parallel to 8

.github/workflows/main.yml

@@ -50,7 +50,7 @@ jobs:
       - name: Configure project
         run: cmake -S . -B build -DDEPTHAI_PYTHON_FORCE_DOCSTRINGS=ON -DDEPTHAI_PYTHON_DOCSTRINGS_OUTPUT="$PWD/docstrings/depthai_python_docstring.hpp"
       - name: Build target 'pybind11_mkdoc'
-        run: cmake --build build --target pybind11_mkdoc --parallel
+        run: cmake --build build --target pybind11_mkdoc --parallel 8
       - name: Upload docstring artifacts
         uses: actions/upload-artifact@v2
         with:
@@ -247,7 +247,7 @@ jobs:
       - name: Build and install depthai-core
         run: |
           cmake -S depthai-core/ -B build_core -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=$PWD/cmake/toolchain/pic.cmake
-          cmake --build build_core --target install --parallel
+          cmake --build build_core --target install --parallel 8
           echo "DEPTHAI_INSTALLATION_DIR=$PWD/build_core/install/" >> $GITHUB_ENV
 
       - name: Append build hash if not a tagged commit
@@ -309,7 +309,7 @@ jobs:
       - name: Build and install depthai-core
         run: |
           cmake -S depthai-core/ -B build_core -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=$PWD/cmake/toolchain/pic.cmake
-          cmake --build build_core --target install --parallel
+          cmake --build build_core --target install --parallel 8
           echo "DEPTHAI_INSTALLATION_DIR=$PWD/build_core/install/" >> $GITHUB_ENV
 
       - name: Append build hash if not a tagged commit

README.md

@@ -34,7 +34,7 @@ Documentation is available over at [Luxonis DepthAI API](https://docs.luxonis.co
      python3 -m pip install -U pip
      python3 -m pip install -r docs/requirements.txt
      cmake -S . -B build -D DEPTHAI_BUILD_DOCS=ON -D DEPTHAI_PYTHON_BUILD_DOCS=ON
-     cmake --build build --target sphinx --parallel
+     cmake --build build --target sphinx --parallel 8
      python3 -m http.server --bind 0.0.0.0 8000 --directory build/docs/sphinx
      ```
   
@@ -44,7 +44,7 @@ Documentation is available over at [Luxonis DepthAI API](https://docs.luxonis.co
      in a new terminal window to update the website source
   
      ```
-     cmake --build build --target sphinx --parallel
+     cmake --build build --target sphinx --parallel 8
      ```
   
      Then refresh your page - it should load the updated website that was just built
@@ -75,7 +75,7 @@ To build a shared library from source perform the following:
 ```
 mkdir build && cd build
 cmake .. [-D PYTHON_EXECUTABLE=/full/path/to/python]
-cmake --build . --parallel
+cmake --build . --parallel 8
 ```
 
 Where `-D PYTHON_EXECUTABLE` option can optionally specify an exact Python executable to use for building.
@@ -96,7 +96,7 @@ To run the tests build the library with the following options
 ```
 mkdir build_tests && cd build_tests
 cmake .. -D DEPTHAI_PYTHON_ENABLE_TESTS=ON -D DEPTHAI_PYTHON_ENABLE_EXAMPLES=ON -D DEPTHAI_PYTHON_TEST_EXAMPLES=ON
-cmake --build . --parallel
+cmake --build . --parallel 8
 ctest
 ```
 
@@ -183,5 +183,5 @@ Another option is to use **clang** compiler:
 sudo apt install clang-10
 mkdir build && cd build
 CC=clang-10 CXX=clang++-10 cmake ..
-cmake --build . --parallel
+cmake --build . --parallel 8
 ```

docs/ci.cmake

@@ -5,4 +5,4 @@ set(project_root "${CMAKE_CURRENT_LIST_DIR}/..")
 execute_process(COMMAND "git" "rev-parse" "HEAD" WORKING_DIRECTORY ${project_root} OUTPUT_VARIABLE buildCommitHash OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 execute_process(COMMAND ${CMAKE_COMMAND} -D DEPTHAI_PYTHON_COMMIT_HASH:STRING=${buildCommitHash} -D DEPTHAI_PYTHON_BUILD_DOCS:BOOL=YES -D DEPTHAI_BUILD_DOCS:BOOL=YES -S . -B build WORKING_DIRECTORY ${project_root} COMMAND_ECHO STDOUT)
-execute_process(COMMAND ${CMAKE_COMMAND} --build build --parallel WORKING_DIRECTORY ${project_root} COMMAND_ECHO STDOUT)
+execute_process(COMMAND ${CMAKE_COMMAND} --build build --parallel 8 WORKING_DIRECTORY ${project_root} COMMAND_ECHO STDOUT)

docs/docker/update_docs.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-cmake --build build --target sphinx --parallel
+cmake --build build --target sphinx --parallel 8
 
 # fix missing index.css file
 cp /app/docs/source/_static/css/* /app/build/docs/sphinx/_static/css

examples/README.md

@@ -9,7 +9,7 @@ Navigate to root of repository and build Python module with DEPTHAI_PYTHON_TEST_
 ```
 mkdir -p build && cd build
 cmake .. -DDEPTHAI_PYTHON_ENABLE_EXAMPLES=ON
-cmake --build . --parallel
+cmake --build . --parallel 8
 ```
 
 If you'd like to use a different Python interpreter, set `PYTHON_EXECUTABLE` to your interpreter location