Performance of Compositional Solvers

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Markonemore

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May 29, 2025, 11:38:55 PMMay 29
to MRST-users: The Matlab Reservoir Simulation Toolbox User Group
Hello, I use Diagonal(MEX+RowMajor) in the NaturalVariablesCompositionalModelto solve the following errors, but in the GenericOverallCompositionModel is normal, why is this?20250530113721.png

Olav Møyner

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May 30, 2025, 6:08:02 AMMay 30
to Markonemore, MRST-users: The Matlab Reservoir Simulation Toolbox User Group
Hi,

The diagonal row major version is only tested on generic models. You can disable rowMajor and it should work. The difference between rowMajor and non-rowMajor is not that large for most problems.

Best regards,
Olav

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Subject: [MRST Users] Performance of Compositional Solvers
 
Hello, I use Diagonal(MEX+RowMajor) in the NaturalVariablesCompositionalModelto solve the following errors, but in the GenericOverallCompositionModel is normal, why is this?20250530113721.png

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Markonemore

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Jun 5, 2025, 11:52:41 PMJun 5
to MRST-users: The Matlab Reservoir Simulation Toolbox User Group
Thanks for your reply, but I have another problem now. It works normally after disabling rowMajor in homogeneous model, but the following error occurs in heterogeneous model. What is the reason?20250606115143.png
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