_BOUT++

Contacts: Orso Meneghini, Theresa Wilks, Cody Moynihan

Short Description

Run the BOUT++ code

Keywords

BOUT++, Fluid Turbulence

Long Description

This module prepares the input, runs, and postprocesses the output of the BOUT++ code.

Typical workflows

The BOUT++ module handles building of the BOUT++ user model, execution, data fetching and post-processing

1. The input files of BOUT++ need to be set

   • the script .cxx root[‘INPUTS’][‘CXX’] as OMFITascii

   • the option file BOUT.inp root[‘INPUTS’][‘INP’] as OMFITini

   • the NetCDF grid file .nc (optional) root[‘INPUTS’][‘GRID’] as OMFITnc

   • the NetCDF restarting files BOUT.restart.*.nc (optional) [‘RESTART’][‘data/BOUT.restart.*.nc’] as OMFITnc

2. Running BOUT++

   • The run of BOUT++ can be made by the execution of root[‘SCRIPTS’][‘runBOUT++’].

   • If a sweep over mode numbers is preferred, execution of root[‘SCRIPTS’][‘batchrun’] is useful.

   • The output can be pre-visualized in the console of OMFIT.

   • The run of BOUT++ can be aborted, continuing the script root[‘SCRIPTS’][‘runBOUT++’] or completely killed.

   • When the run of BOUT++ is done, the output files are saved into

     • root[‘OUTPUTS’][‘LOG’] a OMFITascii type for the BOUT.log.* files

     • root[‘OUTPUTS’][‘DATA’] a single merged OMFITnc type for the BOUT.dmp.*.nc data files This file is obtained by merging the output data files BOUT.dmp.*.nc by the script root[‘SCRIPTS’][‘fetchBOUT++’]

     • root[‘OUTPUTS’][‘RESTART’] a OMFITnc type for the last time step needed for restarting the BOUT++ run

3. Post-running / Analysis

   • Saving of data to root['Saves'] can be achieved through the GUI root['GUIS']['SAVE'].

   • Data visualization is available via the GUIs root['GUIS']['BOUT++_Analysis'] and root['GUIS']['BOUT++_ScanAnalysis'].

   • The GUI root['GUIS']['BOUT++_Analysis'] allows the following for a single run

     • Plot of the linear log growth rate

     • Plot of 1D mode structure vs. Psi

     • Plot of 2D mode structure

   • The GUI root['GUIS']['BOUT++_ScanAnalysis'] allows the following for multiple runs

     • Plot the 1D mode structure for each run on the same figure

     • Plot the growth rate vs. n for multiple trends

Supported devices

• Device independent

Relevant publications

• B D Dudson, M. V. Umansky, X. Q. Xu, P. B. Snyder, H. R. Wilson: BOUT++: a framework for parallel plasma fluid simulations. Computer Physics Communications 180 (2009), pp. 1467-1480 doi:10.1016/j.cpc.2009.03.008

External resources

Official webpage: https://boutproject.github.io/

Classes

• omfit_classes.omfit_bout.OMFITbout()

• omfit_classes.omfit_data.OMFITncDataset()

• omfit_classes.omfit_nc.OMFITnc()

Contributors

List of contributors sorted by number of lines authored:

630 Cody Moynihan
280 Orso Meneghini
 93 Sterling Smith
 90 Fusion Bot
 69 Galina Avdeeva
 57 Theresa Wilks
 37 Olivier Izacard
  1 Will DeShazer
  1 Torrin Bechtel

Submodules

• GRIDGEN

Users

List of usernames sorted by number of module imports: N/A