multio
multio is a package developed by ECMWF that provides an application programming interface (API) for
- I/O-server functionality for distributed earth-system models,
- post-processing pipelines of user-programmable list of actions.
The fundamental design principle behind multio is that data is decoupled from metadata, and that the metadata is used for routing the data through the post-processing pipelines.
Documentation
The documentation can be found at https://multio.readthedocs.io.
Requirements
Runtime dependencies:
- eccodes -- http://github.com/ecmwf/eccodes
- eckit -- http://github.com/ecmwf/eckit
- metkit -- http://github.com/ecmwf/metkit
Optional runtime dependencies:
- fdb -- http://github.com/ecmwf/fdb
- fckit -- http://github.com/ecmwf/fckit (for the fortran example code only)
Build dependencies:
- CMake -- For use and installation see http://www.cmake.org/
- ecbuild -- ECMWF library of CMake macros (available via apt or see https://github.com/ecmwf/ecbuild)
- MPI -- an implementation of MPI may be required for the I/O-server functionality, see https://www.mpi-forum.org/
Installation
multio employs an out-of-source build/install based on CMake.
Make sure ecbuild is installed and the ecbuild executable script is found ( which ecbuild ).
Now proceed with installation as follows.
-
Set up environment as appropriate
srcdir=$(pwd) builddir=build installdir=$HOME/local
-
Run Cmake/ecbuild
ecbuild --prefix=$installdir -- -DCMAKE_PREFIX_PATH=<path/to/dependencies/install> $srcdir
The package is in active development and the I/O-server functionality is not enabled by default, so it needs to be turned on explicitly. In addition, if built with FDB support, some compilers will require linking to be forced.
ecbuild --prefix=$installdir -- -DCMAKE_PREFIX_PATH=<path/to/dependencies/install> -DECBUILD_EXE_LINKER_FLAGS=-Wl,--no-as-needed $srcdir
-
Compile, test and install
make -j10 ctest make install
GIT hooks
Please run the following command in the project root to use our git hooks:
git config core.hooksPath .githooks
Copyright and license
(C) Copyright 2005- ECMWF.
This software is licensed under the terms of the Apache Licence Version 2.0 which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
In applying this licence, ECMWF does not waive the privileges and immunities granted to it by virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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