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Introduction to ACCESS-UM IT infrastructure

Introduction to ACCESS-UM IT infrastructure. A.Sulaiman Martin Dix Michael Naughton Stuart Moore Acknowledgements: NEC Supercomputing Australia Glenn Greed (UKMO) Ilia Bermous, Peter Steinle, Xi Xiao, Tan Le and others who have been working on the ACCESS project. AGENDA.

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Introduction to ACCESS-UM IT infrastructure

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  1. Introduction toACCESS-UM IT infrastructure A.Sulaiman Martin Dix Michael Naughton Stuart Moore Acknowledgements: NEC Supercomputing Australia Glenn Greed (UKMO) Ilia Bermous, Peter Steinle, Xi Xiao, Tan Le and others who have been working on the ACCESS project.

  2. AGENDA • Introduction • Introduction to UM • UMUI • Computing Environment overview • Introduction to UMUI • Brief Introduction to TRAC -- Break -- • FCM & UM 6.3 Development

  3. Computing Environment Overview(May 2007)

  4. Computing Environment Overview

  5. UMUI Unified Model User Interface

  6. UMUI Introduction Unified Model User Interface • Made up of definition files interpreted byGHUI(Generic Hierarchical User Interface),script and and control file templates and tcl/tk routines.

  7. UMUI Introduction Unified Model User Interface • GUI used for building, setting up and running the UM • Accommodate multiple UM version • Currently vn6.0 and vn6.3 • Client Server (user umui application <-> umui_server) • Currently on d2 only

  8. Running UMUI • Need to set up password-less ssh • Need an account on d2 • Must have full X-Windows connection • Set path to include /access/binx86_64 • copy .umsetvars_vn6.3 from ~access • To start, enter (on the command line): umui&

  9. UMUI Main Window

  10. UMUI Main Window

  11. UMUI Main Window

  12. UMUI Filter Options

  13. UMUI Filter Options

  14. UMUI Experiments

  15. UMUI Experiments

  16. UMUI Experiments

  17. UMUI Experiments

  18. UMUI Experiments

  19. UMUI Experiments

  20. Setting up a UMUI Job

  21. Setting up a UMUI Job

  22. Setting up a UMUI Job

  23. Copying an existing UMUI Job

  24. Copying an existing UMUI Job

  25. Copying an existing UMUI Job

  26. Copying an existing UMUI Job

  27. Copying an existing UMUI Job

  28. Copying an existing UMUI Job

  29. Open a UMUI Jobs

  30. Opening a UMUI Job • Open xaeza

  31. UMUI Jobs

  32. UMUI Jobs

  33. UMUI Jobs

  34. UMUI Navigation of Job

  35. UMUI Job: General Details Panel

  36. Check Setup/Save/Process/Submit

  37. UMUI Job Submission

  38. UMUI Job Submission

  39. UMUI Job Submission The following Directories appear (if not already there): $WORKDIR/nwpra/--- Temporary job files $DATADIR/nwpra/--- job output $HOME/umui_jobs/--- job scripts and parameters $HOME/umui_runs/--- run scripts and parameters $HOME/um_output/ --- job output Output name format: $RUNIDxxx.$RUNID.xxxxxx.xxxxxxx.leave eg: nwpra000.nwpra.d07103.t120946.leave YearJulianDay.Time Usegrep ‘End of UM Job’ For quick check if job is successful

  40. Debugging runs Output (ascii) from a UM job appears in $HOME/output/$RUNIDxxx.$RUNID.xxxxxx.xxxxxxx.leave ~ 10,000 lines!!!! There is a learning curve to understand these output files. If the model fails there will usually be a traceback within the output file.

  41. Start Dump Common errors Other than the obvious file does not exist! • “Atmospheric dump contains wrong number of prognostic fields” Number in dump = 776 Number expected = 750 This comes about when the start dump ‘science’ options do not match the UM forecast job science options. Check UM setup and/or use reconfiguration. 2. “Atmospheric basis time mismatch” (start dump time does not match that in UMUI).

  42. Debugging (run-time) If little appears to happen in a run check that the start data and the executable actually exist! • “file not found” or “OPEN” “UNIT” If it fails during timestep 1 • %_ALLOC (not enough memory) • Undefined external (chosen section not compiled) • Atmospheric basis time mismatch (start dump time does not match that in UMUI). If timepstep (>1, < ~20) • Poor surface fields after reconfiguration? Much more tricky to solve, check ancillaries and start dump data for anomalies.

  43. More UMUI Setup Panels • Defining job resources • Physics options • Model Resolution and Domains • Start Dump (Initial Conditions) • Stash (Output fields & files)

  44. UMUI Navigation of Job

  45. UMUI Jobs

  46. UMUI Jobs

  47. UMUI Job: Target Machine

  48. UMUI Job: Physics Options

  49. UMUI JOB: Horizontal Resolution

  50. UMUI JOB: Limited Area

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