ADIOS2 support¶
This section summarises the use of ADIOS2 in BOUT++.
Installation¶
The easiest way to configure BOUT++ with ADIOS2 is to tell CMake to download and build it with this flag:
-DBOUT_DOWNLOAD_ADIOS2=ON
The master
branch will be downloaded from Github,
configured and built with BOUT++.
Alternatively, if ADIOS2 is already installed then the following flags can be used:
-DBOUT_USE_ADIOS2=ON -DADIOS2_ROOT=/path/to/adios2
Output files¶
The output (dump) files are controlled with the root output
options.
By default the output format is NetCDF, so to use ADIOS2 instead set
the output type in BOUT.inp:
[output]
type = adios
or on the BOUT++ command line set output:type=adios
. The default
prefix is “BOUT.dmp” so the ADIOS file will be called “BOUT.dmp.bp”. To change this,
set the output:prefix
option.
Restart files¶
The restart files are contolled with the root restart_files
options,
so to read and write restarts from an ADIOS dataset, put in BOUT.inp:
[restart_files]
type = adios