Running HWRF

This page and its subpages explain how to run the HWRF model, track what it is doing during the execution, and figure out what is going wrong.

Note that the multi-storm HWRF has its own special page with details on this matter:

• HWRF Multistorm Configuration

Running HWRF

There are several ways to run the HWRF model:

• Use a workflow automation system.
  • Use ecFlow, if you work in NCEP Central Operations (NCO).
  • Use Rocoto, if you don't work in NCO.
• In interactive batch jobs with HWRF wrappers.
• Manual execution for debugging:
  • Directly run ex-scripts from the shell.
  • Manually run HWRF Python functions.

The direct methods are more laborious than automation systems. However, direct methods are more useful for debugging if one is developing new capabilities in HWRF, or porting it to new supercomputers. For details on each method, visit one of the three above links.

For information about HWRF wrappers, see the HWRF User's Guide on the public HWRF website: http://www.dtcenter.org/HurrWRF/users/

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Monitoring HWRF

After you start the Rocoto-based or ecFlow-based workflow, a sequence of jobs will run, and some may fail, requiring user intervention. In order to know this, you must monitor the progress of the HWRF forecast cycles. Both ecFlow and Rocoto have means by which to check which jobs are queued, submitted, completed or failed. See the HWRF Rocoto Workflow page for details on doing this in Rocoto.

HWRF Directory Structure

Knowing where data will show up can tell you a lot about what is going on in HWRF and why. The HWRF system has several key directories:

• WORKhwrf — the work directory for each cycle. Each storm and cycle has its own work directory. In the Rocoto-based workflow, this directory contains log files.
• intercom — a directory used to trade data between jobs for one storm and cycle. This is inside the WORKhwrf directory.
• com — the com directory for each cycle. A job for one storm or cycle will never access another storm or cycle data except through its com directory.
• log — contains log files that are not specific to a storm or cycle.

For great detail on the HWRF directory structure:

Todo:

Add HWRF directory structure page.

Detailed Logging

Logging in HWRF is quite extensive. For details on HWRF logging, we refer you to an entire page on the matter:

• HWRF Log Files