An implementation of the LPJmL photosynthesis and related processes in Julia

Overview

The implementation is based on LPJmL and contains processes for:

• water stress
• temperatures tress
• photosynthesis
• radiation

Requirements

Requires an installation of Julia (1.8.2). The dependencies can be installed via the package manager ]

pkg> activate .
(LPJ) pkg> instantiate

Usage

Simulation parameters, options and directories are defined in src/default_parameters.jl. Inside the Julia REPL run:

using LPJ

run_lpj()

or from the command line

julia --project=. src/execute.jl

to benchmark the performance e.g. use

julia --project=. src/execute.jl --benchmark --find_lambda "solver"

to enable CUDA for GPUs, the --gpu flag can be used.

Flags

The following flags can be used:

Flag	Type	Function
--gpu	Bool	Enable GPU
--benchmark	Bool	Run performance benchmark
--find_lambda	String	Algorithm to determin the optimal lambda

Tests

To run all test on a GPU do

julia --project=. test/runtests.jl --gpu