Dependencies
- cmake ( install cmake (sudo apt-get install cmake)). Need at least cmake/3.13.4
- g++ ( install g++ (sudo apt-get install g++)) ecflow 5 series can only be built with C++14 or later compilers. i.e. at the minimum gcc 6.3 or clang 6.0.
- Python 3(optional)
If you intend to use ecFlow Python API, You will need to install Python. (install python-dev (sudo apt-get install python-dev))
Please ensure that python is accessible on $PATH otherwise, you may need to customise $BOOST_ROOT/tools/build/v2/site-config.jam .
The python installation should include the development packages
If you do not need the python api, then you can build without it, see below. - Qt for ecFlowUI (Qt5 preferred).
For self-installed Qt libraries, consider setting CMAKE_PREFIX_PATH (see below). See also http://doc.qt.io/qt-5/cmake-manual.html for further details. - openssl(optional)
Setting up the build environment
ecfFlow consists of two tar files i.e.:
boost_1_71_0.tar.gz (or any recent boost)
- ecFlow-5.5.0-Source.tar.gz
Create a directory for the build:
mkdir /tmp/ecflow_build
Copy the the two tar file into this directory, then change directory to /tmp/ecflow_build
Un-zip then un-tar the two file files:
tar -zxf boost_1_71_0.tar.gz tar -zxf ecFlow-5.5.0-Source.tar.gz
You should have two directories created:
boost_1_71_0 ecFlow-5.5.0-Source
Create two environment variables. These are used by some of the scripts:
export WK=/tmp/ecflow_build/ecFlow-5.5.0-Source export BOOST_ROOT=/tmp/ecflow_build/boost_1_71_0
If you have a module system, please ensure that before you start, gcc,cmake,python3,etc are available in $PATH.
module load gnu module load cmake module load python3 module load qt
Build boost
In future releases of ecflow 5 series, the client/server versions of ecflow do not have to be built with the same boost version. This is because ecflow 5 now uses JSON for client/server communication.
Boost uses bjam for building the boost libs.
bjam source is available in boost, hence we first need to build bjam itself:cd $BOOST_ROOT ./bootstrap.sh
If you do not require the ecFlow python api, you can avoid building boost python libs by setting
Disable boost python, if ecflow PYTHON api not requiredexport ECF_NO_PYTHON=1
You will also need to disable python when building ecFlow. See the instruction under cmake before calling $WK/build_scripts/boost_build.sh (see below)
ecFlow uses some of compiled libraries in boost. The following script will build the required lib’s and configure boost build according to your platform.
Build boost libraries including python3 used by ecflow.cd $BOOST_ROOT $WK/build_scripts/boost_build.sh # compile boost libs used by ecFlow. Please see notes in boost_build.sh, if you want to build both for python2 and python3
Build
cmake
As configure, CMake will run some tests on the customer's system to find out if required third-party software libraries are available and notes their locations (paths). Based on this information it will produces the Makefiles needed to compile and install ecFlow
CMake is a cross-platform free software program for managing the build process of software using a compiler-independent method.
Generating the Makefiles with CMake
After changing into the build ecflow directory, the user has to run CMake with his/her own options. The command gives feedback on what requirements are fulfilled and what software is still required. Table below gives an overview of the different options of configure. The default (without any options) will install in /usr/local/.
cmake options | doc | default |
---|---|---|
CMAKE_INSTALL_PREFIX | where you want to install your ecFlow | /usr/local |
CMAKE_BUILD_TYPE | to select the type of compilation:
| Release |
CMAKE_CXX_FLAGS | more flags for the C++ compiler | |
ENABLE_SERVER | build the ecFlow server | on |
ENABLE_PYTHON | enable python interface | on |
ENABLE_UI | enable build of ecflowUI (requires Qt) | on |
CMAKE_PREFIX_PATH | use to provide path to dependent libraries which are installed in a non-system locations. | |
ENABLE_ALL_TESTS | enable performance, migration, memory leak , and regression tests | off |
ENABLE_SSL | Encrypted communication for user commands Please see: Open ssl for more details. | on |
BOOST_ROOT | where to find boost ( if non-standard installation ) If not specified cmake will look for an environment variable of the same name. |
The C++ compilers are chosen by CMake. (This can be overwritten by setting the environment variables CXX on the command line before you call cmake, to the preferred compiler).
Further the variable CMAKE_CXX_FLAGS can be used to set compiler flags for optimisation or debugging.
cd $WK mkdir build; cd build; # Go with defaults, will build with CMAKE_BUILD_TYPE=Release and install to /usr/local cmake .. # build release with debug info # cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo # Override install prefix # cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/apps/ecflow/5.5.0 # do NOT build the gui. # cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/apps/ecflow -DCMAKE_BUILD_TYPE=Release -DENABLE_GUI=OFF # ignore Wdeprecated-declarations compiler warning messages and do NOT build python api # cmake .. -DCMAKE_CXX_FLAGS="-Wno-deprecated-declarations" -DENABLE_PYTHON=OFF # Use -j option to speed up compilation. Determine number of cpu's CPUS=$(lscpu -p | grep -v '#' | wc -l) make -j${CPUS} make check make install
If you experience problem with your installation, and need to fix your install of dependent libraries like QT,Python,Boost,gcc etc, then it is VERY important that you delete the build directory and start cmake build again. (This is because cmake keeps a cache of your configuration, and re-uses this unless the build directory is deleted).
cd $WK rm -rf build mkdir build; cd build cmake .. # or use whatever cmake configuration you used before
To use the ecFlow Python Api , you need to add/change PYTHONPATH .
export PYTHONPATH=$PYTHONPATH:<prefix>/5.5.0/lib/python2.7/site-packages/ecflow # If you used the default's then <prefix>=/usr/local # otherwise you should use whatever you entered for -DCMAKE_INSTALL_PREFIX, hence in the examples above we would have: export PYTHONPATH=$PYTHONPATH:/usr/local/apps/ecflow/5.5.0/lib/python3.6/site-packages/ecflow
Installing ecFlow Python to a custom directory
The default install for ecFlow, will install python(if it was enabled) under the directory given to CMAKE_INSTALL_PREFIX.
However sometimes we may need to install the ecFlow python module to a different prefix.
This can be done using:
cd $WK/build # change to the build directory cmake -DCMAKE_INSTALL_PREFIX=/tmp/avi/custom/ecflow/5.5.0 -DCOMPONENT=python -P cmake_install.cmake -- make install # install python module under /tmp/avi/custom/ecflow/5.5.0
ecflow_ui: Make a list servers accessible to all users
The GUI used by ecFlow is called ecflow_ui. This is used to interact and visualize the ecFlow servers.
You can make the list of servers available for your users by:
- creating a file called servers
The format of the servers file is very easy:
server file format<server_name> <machine_name> <port>
An example might be:
servers fileserver machineX 3141 projectX machineabc 4141 exp1 machineabc 4141 mars bigmac 11031
Copy this file to CMAKE_INSTALL_PREFIX/share/ecflow/. This makes the list of servers accessible to all users of ecflow_ui
cp servers /tmp/avi/custom/ecflow/5.5.0/share/ecflow/.