distributed_advection

Advection Example

This example illustrates how to use DisCoTec to run an advection solver wrapped in TaskAdvection. It moves a Gaussian diagonally through a domain of arbitrary dimensionality.

Details on the initial condition and the solver can be found in this preprint.

You can adapt the example by editing the ctparam file, exactly like in the basic example.

You can run the singular example by

mpirun -n $N ./advection_example

with the number of MPI processes $N as ngroup * nprocs + 1 (for the manager process) -> 3 in the current parameter files.

In order to write hdf5 output, DisCoTec needs to be compiled with DISCOTEC_USE_HIGHFIVE. In addition, the output will be written in raw format if a folder named out was created before.

The raw data can be visualized, for example, with

../../tools/plot_raw_slice.py out/solution_hat_2D_3-10_10_0.raw

which will put a corresponding .pdf file in the out/ folder.