Code Development [MCH]

COSMO

Testing COSMO with the Testsuite

The following commands demonstrates how to launch the testsuite for a COSMO executable compiled using spack. Assuming the user starts from the root folder of cosmo.

# copy executable to the testsuite folder
cp -f cosmo/ACC/cosmo_gpu cosmo/test/testsuite # cosmo_cpu for cpu

# source the run environment
spack load $COSMO_SPEC

# launch tests

./cosmo/ACC/test/tools/test_cosmo.py -s $COSMO_SPEC -b .

Serialized unittest data

In order to run test the C++ dycore, the regression tests require a set of serialized data files from COSMO. Jenkins runs periodically the serialization (https://jenkins-mch.cscs.ch/job/cosmo_serialize/), which installs all the serialized data set corresponding to the latest master in the g110 project space. In order to find the location of the jenkins serialized data follow the steps described in Locate jenkins serialized data.

In a different development situation where you are modifying the FORTRAN COSMO dycore, the master serialized data by jenkins will not be compatible with your modifications. In that case you need to serialize your own data (see Serialize your own data).

Locate jenkins serialized data

This section describes how to find the location of the serialized data by jenkins for the master version of COSMO.

Set the spack spec of COSMO for serialization mode:

COSMO_SERIALIZE_SPEC="cosmo@dev-build%pgi real_type=float cosmo_target=cpu +serialize ~cppdycore"

Find the spack install location of the serialized data

SERIALIZE_DATA=$(spack location -i ${COSMO_SERIALIZE_SPEC})/data

Serialize your own data

Set the spack spec (for dev-build version) of COSMO for serialization mode:

COSMO_SERIALIZE_SPEC="cosmo@dev-build%pgi real_type=float cosmo_target=cpu +serialize ~cppdycore"

In your working directory of cosmo, build a spack COSMO executable for serialization

cd </path/to/cosmo>
spack dev-build --until=build ${COSMO_SERIALIZE_SPEC}

Load the correct run environment

spack load ${COSMO_SERIALIZE_SPEC}

Launch the serialization script

./cosmo/ACC/test/tools/serialize_cosmo.py -s ${COSMO_SERIALIZE_SPEC} -b .

Set the path to the serialized data (later it will be used in this guide)

SERIALIZE_DATA=</path/to/cosmo>/cosmo/ACC/test/serialize/data/

COSMO C++ Dycore

This section describes how to compile and test a version of the COSMO C++ dycore from your working directory.

Set a COSMO C++ dycore spec

DYCORE_SPEC="cosmo-dycore@dev-build real_type=float build_type=Release"

In your working directory of cosmo, build a C++ dycore executable

cd </path/to/cosmo>
spack dev-build --until=build cosmo-dycore@dev-build real_type=float build_type=Release +cuda

Load the correct run environment

spack load ${DYCORE_SPEC}

Launch the dycore test script

./dycore/test/tools/test_dycore.py -s ${DYCORE_SPEC} -b spack-build -d ${SERIALIZE_DATA}