Compiling JEDI components on Hera

Instruction for cloning, building and running the JEDI components (OOPS, UFO, FV3, SOCA bundles) on Hera

If this is the first time building JEDI follow the initialization steps at the bottom of this page before continuing.

INTEL 19

# Load the modules:

$> module purge

$> module use -a /scratch1/NCEPDEV/da/Daniel.Holdaway/opt/modulefiles/

$> module load apps/jedi/intel-19.0.5.281

# This will load the Intel compiler suite (currently only v19.0.5.281 is supported)

# See what modules are loaded:

$> module list

Assume comp_name can be oops, ufo-bundle, fv3-bundle or soca-bundle

Clone the JEDI component.

$> git clone https://github.com/jcsda/comp_name

change directory into the cloned component:

$> cd comp_name

Create a build directory and cd into it:

$> mkdir build
$> cd build

Build the components of the bundle, create executables and test them:

$> ecbuild --build=release -DMPIEXEC=$MPIEXEC ../

$> make -j12
$> ctest

Release can be exchanged with 'debug' or 'bit' for different levels of optimization.

GNU

GNU compilers are not currently supported on Hera

INITIALIZATION

Several JEDI repositories use Git LFS (large file store) to manage large files and needs to be initialized. It installs several Git hooks for managing these files. The initialization is a one-time setup and can be done as follows:
```
$> git lfs install
```
Github will ask for authentication each time a protected repository is cloned. All JEDI repositories are currently protected. The user can "cache" the login credentials to prevent github from asking for login credentials for a acceptable period of time (3600 secs) as follows:
```
$> git config –global credential.helper “cache –timeout=3600”
```

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