Re: [EnergyPlus_Support] Fatal error: singular matrix in LU decomposition

["Michael J. Witte" <mjwitte@xxxxxxxx>]

The error is coming from the window which has a between-glass shade, but I do 
not know yet what the specific problem is.  If you delete the shade and the 
window shading control, the simulation will run.

Mike


On 12 Jan 2005, at 10:10, Fábyo Luiz Pereira wrote:

> 
>    I'm doing a simulation with shading device on windows. After a few warnings
> and fatal errors, the fatal error below appears. After launch the simulator,
> when the CTF matrix are being calculated the fatal error appears. What means
> this fatal error?
> 
> PS: I'm sending attached the idf file.
> 
> 
> 
> Program Version,EnergyPlus 1.2.0.029, 12/1/2005 11:01
>    ************* Testing Individual Branch Integrity
>    ************* All Branches passed integrity testing
>    ************* Testing Individual Supply Air Path Integrity
>    ************* All Supply Air Paths passed integrity testing
>    ************* Testing Individual Return Air Path Integrity
>    ************* All Return Air Paths passed integrity testing
>    ************* No node connection errors were found.
>    **  Fatal  ** Singular matrix in LUdecomposition, window calculations
>    ************* EnergyPlus Terminated--Fatal Error Detected. 0 Warning; 0
> Severe Errors
> 
> 
> =====
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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