Table of Contents

LTR 2.2.0

December 3, 2012

Download:

• http (Login required; email schmitt <at> ucar <dot> edu for an account)
  • LTR-2_2_0.tar.gz md5 checksum: 968512b8bcb6fe134d2c452611b7e833
• SVN (login required) https://proxy.subversion.ucar.edu/cism_MODELS/tags/LTR-para/LTR-2_2_0
• Upgrade instructions:
  • Install InterComm-2.0
  • Extract the code to LTR-2_2_0
  • copy your Make.$MACHINE file into LTR-2_2_0/env/ and make the following edits:
    • Search for INTERCOMM and set it to the InterComm-2.0 installation path.
    • Add INTERCOMM_MPMD=PNMPI
  • MakeItSo has changed in several ways:
    • The makeItSo.config format has changed. To prepare a model run, we recommend one of two options:
      • Run makeItSo.py in command-line mode to generate a new config file, job scripts and inputs
      • See the example config files in the subdirectories at LTR-2_2_0/test/ for the updated format.
    • Environment configurations have changed. If you have a custom environment, work with Peter Schmitt (e-mail: schmitt <at> ucar <dot> edu) to update your environment. The environment configuration has been updated for the following machines:
      • bluefire.ucar.edu
      • discovery.dartmouth.edu
      • gauss.byu.edu
      • gosset.byu.edu
      • hilo1.ccmc.gsfc.nasa.gov
      • janus login.rc.colorado.edu
      • kraken.nics.tennessee.edu
      • stic.rice.edu
      • wjet.rdhpcs.noaa.gov
      • yellowstone.ucar.edu
  • Update environment variables (these may be set in your login scripts (eg. _/.bashrc, /.bash_profile, etc.). For the bash shell, you should run:

    export LTRROOT=/path/to/LTR-2_2_0 export PYTHONPATH=$LTRROOT/misc/pyLTR:$PYTHONPATH export PATH=$LTRROOT/misc/pyLTR/scripts:$LTRROOT/misc/python:$PATH

    For the C-shell, run:

    setenv LTRROOT /path/to/LTR-2_2_0 setenv PYTHONPATH $LTRROOT/misc/pyLTR:$PYTHONPATH setenv PATH $LTRROOT/misc/pyLTR/scripts:$LTRROOT/misc/python:$PATH

  • Follow the compile instructions to build the latest version of code.

Change log

Note in our attempt to follow Semantic Version Numbers, this is a minor update to the coupled models: backwards-compatible functionality (InterComm-2.0 coupling) is introduced. PVM and InterComm-1.6 are now deprecated. Technically, this update is not fully backwards compatible, as the MakeItSo.config format has changed. However, the model output should be consistent from LTR-2.1.x.

• Repository revision: r2147
• Changelog:
  • Coupled models use InterComm 2.0.  This deprecates PVM and all job scripts.  We use MPI and PNMPI for all inter-model communication.
  • New: Python Tools for LTR (pyLTR) are distributed with the source code.  This includes scripts and libraries to 
    • process Solar Wind files from CDAweb
    • generate routine analysis of model output (eg. time series plots, polar plot plots, etc.).
  • New: CMIT runs execute the TIEGCM in parallel resulting in better load balancing and improved CMIT execution time performance. 
  • Bug fixes
  • There are lots more changes. For a complete list, see the LTR-2.2.0 roadmap.