Inhomogeneous Cosmologies III Software notes

See also:

• scalar averaging software - ramses-scalav: CosmoTorun17Software#workshop_notes_45_scalar_averaging_N_45body
• !SageManifolds - CosmoTorun17Software#workshop_notes_45_Sage_Manifolds

Einstein Toolkit tutorial

• main URL 2017: http://cosmo.torun.pl/cosmotorun17_soft.html + notes at CosmoTorun17Software#workshop_notes_45_ET

workshop notes - ET

• http://einsteintoolkit.org
• Participants to the ET tutorials: please try to install the toolkit and reproduce a simple spacetime prior to the workshop, following the instructions at https://docs.einsteintoolkit.org/et-docs/Simplified_Tutorial_for_New_Users.

modify einsteintoolkit.th, download extra files and recompile

• Edit einsteintoolkit.th in your top ET directory with an editor
• Find eloisa/ctthorns.git
• A few lines later: !REPO_BRANCH = $ET_RELEASE should become !REPO_BRANCH = master
• Add a few lines later: CTThorns/CT_Dust
• You may safely comment out with "#" or remove the line Llama/WaveExtractL since it is heavy (RAM/cpu time) to compile and not needed.
• You may safely comment out EinsteinInitialData/NoExcision
• Now do: ./GetComponents einsteintoolkit.th
• cd Cactus
• Compile again: ./simfactory/bin/sim build --mdbkey make 'make -j2' --thornlist=manifest/einsteintoolkit.th
• Run: ./simfactory/bin/sim submit eds-0001 --parfile=repos/ctthorns/par/eds.par --procs=1 --walltime=0:30:0

Hints

• avoid filling home directory: To avoid creating a huge (733 Mb) directory in your home directory for the simplified tutorial for new users, create your target directory and soft link it to ~/simulations either before you start or before you start running a simulation.

successful runs of tutorial

• CosmoTorun17: Krzysztof, Boud, Sven
• InhomCosmIII: fill in your names... :)

gevolution hackathon

• gevolution:
  • https://github.com/gevolution-code/gevolution-1.1
  • ArXiv:1604.06065
  • makefile edit for Debian GNU/Linux (stretch):

    INCLUDE += -I../LATfield2-dev -I/usr/include/hdf5/serial -L/usr/lib/x86_64-linux-gnu/hdf5/serial

  • LATfield2 hack: see this hdf5.h hack to daverio LATfield2
  • if you unload both package directories at the same directory level, then in gevolution-1.1/ you can do ln -s ../LATfield2 . so that the gevolution makefile can find the LATfield2 files
  • Create an output directory mkdir output/
  • You should be able to compile gevolution with make and run the example with

    (time mpirun -np 4 ./gevolution -n 2 -m 2 -s settings.ini) > gevolution.log.2 2>&1

    in order to get a nice log file - on Boud's 4-core laptop this took about 140 seconds of user time.
• Visualisation - SPLASH:
  • http://users.monash.edu.au/~dprice/splash/
  • Debian GNU/Linux derivatives (Ubuntu, Mint, ...): aptitude update && aptitude install splash