HDC - Installation

Note

For now, it only covers the installation of the HDC module on a GateWay cluster with the GNU GCC compiler.

Building from source
1. Clone the HDC project's repository:
```
$: git clone ssh://git@git.iter.org/imas/hdc.git
```
2. Build MDBM backend (optional)
  1. Clone the MDBM project's repository:
    
    $: git clone https://github.com/yahoo/mdbm
    
    Navigate to local MDBM directory:
    
    $: cd mdbm
    
    Set install prefix:
    In place of $PATH variable it is needed to pass relative path to MDBM directory, e.g.: ~/projects/mdbm
    
    $: MDBM_PREFIX=$(realpath $PATH)/install $: sed -i.bak "s|/tmp/install|$MDBM_PREFIX|g" Makefile.base
    
    Optionally disable tests (they need libcppunit, preferably):
    
    $: sed -i.bak '/SUBDIRS/s/test //' src/Makefile
    
    And finally build & install:
    
    $: make install
    
    Leave MDBM repository, but keep $MDBM_PREFIX variable, it will be needed later
    
    $: cd ..
3. Navigate to local HDC directory:
```
$: cd hdc
```
4. Create new directory for build files:
```
$: mkdir build
```
5. Navigate to build directory:
```
$: cd build
```
6. Configure a build - two possibilities: with/without MDBM previously build:
  1. Building without previously installed MDBM module:
    $: cmake -DCMAKE_INSTALL_PREFIX=../install ..
  2. Building with previously installed MDBM module:
    If you have set up MDBM and you still have MDBM_PREFIX variable, then in order to use MDBM, please, append this to cmake command line:
```
-DMDBM_LIBRARY=$MDBM_PREFIX/lib64 -DMDBM_INCLUDE_DIR=$MDBM_PREFIX/include
```
    $: cmake -DCMAKE_INSTALL_PREFIX=../install -DMDBM_LIBRARY=$MDBM_PREFIX/lib64/libmdbm.so -DMDBM_INCLUDE_DIR=$MDBM_PREFIX/include ..
7. And finally build&install:
```
$: make -j install
```
8. After successful build, run tests please:
```
$: make test
```

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HDC - Installation