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--- solvers:m1qn3 [2020/01/20 13:26]
jtodd [SIF contents]
+++ solvers:m1qn3 [2020/01/20 13:30] (current)
jtodd
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 ==== Examples ====
 A 3D examples can be found in ''[ELMER_TRUNK]/elmerice/Tests/InvMeth*''.
+==== Note about Continuous/Discrete Gradients ====
+It is recommended to use the 'Mesh Independent = Logical True' keyword, as this accounts for the variable 'footprint' (i.e. element area) of different nodes on the base of the mesh. This issue becomes particularly noticeable when there is a large variation in mesh resolution across the domain. In such cases, without 'Mesh Independent = Logical True', M1QN3 will tend to alter Beta values only in regions where elements are large (as these make the largest contribution to the discrete cost gradient).
 ==== Solver's references to cite ====

solvers/m1qn3.txt · Last modified: 2020/01/20 13:30 by jtodd