Usecase Dynamo

1
Usecase Dynamo

• Modelling the turbulent dynamo in planets, stars
  and galaxies
• (solving the induction equation with turbulent
  electromotive force)
• Moderate Requirements
• some MB to few GB main memory, lt 10 GB of local
  disk space
• Runtime hours to days, Fortran90 code
• Handling of plain files only
• Concurrent start of multiple simulations with
  different input parameters

2
Preparation of Taskfarming

• One directory for each model containing input
  parameter files and the executable
• Job Description (XML file including data location
  and names of compute resources)

3
Start Taskfarming

• Submit Multi-Job
• globusrun-ws submit -b f job.xml J S o
  epr.xml
• Status requests monitoring
• globusrun-ws status j epr.xml
• globusrun-ws monitor s j epr.xml

4
Multi-Job Flowchart