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

CLIMA requires the following:

• Julia 1.3: currently Julia 1.3.1 is used for testing.
• A working MPI installation: see MPI.jl installation.
• GPU functionality requires an NVIDIA GPU with CUDA drivers.

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.