CLIMA

The Climate Machine is a new Earth system model that leverages recent advances in the computational and data sciences to learn directly from a wealth of Earth observations from space and the ground. The Climate Machine will harness more data than ever before, providing a new level of accuracy to predictions of droughts, heat waves, and rainfall extremes.

Documentation	Build Status

Some notes on using CLIMA

The following instructions to install and run the code assume that Julia version 1.0.1 or greater installed; GPU version requires version 1.2 or greater and an NVIDIA GPU.

The MPI.jl package that is used assumes that you have a working MPI installation

Setup

julia --project=@. -e "using Pkg; Pkg.instantiate(); Pkg.API.precompile()"

You can test that things were installed properly with

julia --project=@. $CLIMA_HOME/test/runtests.jl

where $CLIMA_HOME is the path to the base CLIMA directory.

CLIMA will default to running on the GPU on a GPU-enabled system. To force a CPU run set the environment variable CLIMA_GPU to false.

Problems building MPI.jl

If you are having problems building MPI.jl then most likely you need to set the environment variable JULIA_MPI_PATH. Additionally, if your MPI is not installed in a single place, e.g., MPI from macports in OSX, you may need to set JULIA_MPI_INCLUDE_PATH and JULIA_MPI_LIBRARY_PATH; for macports installs of MPI these would be subdirectories in /opt/local/include and /opt/local/lib.