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-   -   lduMatrix addressing (https://www.cfd-online.com/Forums/openfoam-programming-development/201849-ldumatrix-addressing.html)

klausb May 13, 2018 09:43
lduMatrix addressing
 
Hi,


does anyone have a definition of losortAddr() and losortStartAddr()?


Klaus

dlahaye June 5, 2018 13:47
see line 185 of
https://github.com/OpenFOAM/OpenFOAM...duAddressing.C

klausb December 13, 2023 07:22
losortStartAddr() is clear now:


The losortStartAddr() function in OpenFOAM is used to return the lower sort start addressing. It provides the element position at which a new row starts in the lower matrix and at which a new column starts in the upper matrix. The losortStartAddr() function returns a constant reference to a labelUList, which is a list of labels.


losortAddr() is still unclear:


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