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MikeF

TUFLOW 2009 to 2010

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Hello,

The version of SMS we purchased was shipped with TUFLOW 2009, however 2010 AB is the current version. Is it possible (how is it done?) to change the TUFLOW executable SMS looks for to the new version, also if it is possible then can I call the 64bit version rather than the 32?

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Hi,

You are correct that there is a newer version of TUFLOW available. This version is going to be distributed with SMS 11.0 (you can get the beta now).

It is easy to have SMS point to use a different executable. With TUFLOW this is quite handy because there are currently 4 executables distributed (32-bit single precision, 32-bit double precision, 64-bit single precision, and 64-bit double precision). To point to a different executable:

1. Go to Edit | Preferences.

2. Switch to the File Locations tab.

3. Find the entry for the TUFLOW model and click the button to specify a new location.

4. Browse to the executable that you want to use.

BTW, the newest 2010 executable uses the licensing for SMS 11.0. You can get an evaluation license for SMS 11.0 or contact passwords@aquaveo.com to request a standard license if your maintenance is up to date.

Hello,

The version of SMS we purchased was shipped with TUFLOW 2009, however 2010 AB is the current version. Is it possible (how is it done?) to change the TUFLOW executable SMS looks for to the new version, also if it is possible then can I call the 64bit version rather than the 32?

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I have run a comparative model between the 2010-10-AA, 2010-10-AB and 2009-07-DB builds and noted the following:

1) The change in the Free Overfall Factor default from 0.8 in the 2009 builds to 0.6 in the 2010 builds resulted in a ~ 1 cm difference in water surface. The model run is for a river with a wide floodplain, generally shallow depth of flow with numerous dikes/roads.

2) Using the 2009 build the model ran successfully using the single precision .exe, minimal mass error.

For the 2010 builds, this same model experienced excessive mass error (peak 4.0%) using the single precision (SP) .exe. Reviewing the MB1 output the majority of the 'problem' areas appeared to be along the channel banks.

Model elevation is 780 ft. / 238m NGVD29.

Using the 2010-10-AB build double precision (DP) .exe the model ran successfully with minimum mass error.

Guess the difference in compiler pushed this marginal model from a SP standpoint into the DP category.

3) The water surface difference between the model runs using the 2009-07-DB SP .exe and the 2010-10-AB DP .exe was minimal (<1 mm) with the Free Overfall Factor set to 0.8 for both.

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