In OF 1.3, we used the followi
In OF 1.3, we used the following syntax in the fvSolution file:
p AMG 1e-06 0 25;
If I were to translate the same into OF 1.4, I would expect the following syntax:
My question is whether we need to specify nPreSweeps, nPostSweeps and nFinestSweeps? Also, can someone explain the use of mergeLevels?
Also what smoothers are available?
mergeLevels is the number of m
mergeLevels is the number of merge operations to do between grid levels. mergeLevel 1 is equivalent to what is hard coded in AMG and is what I normally use.
agglomerator faceAreaPair; seems to work best
smoother options are: GaussSeidel, DIC and DICGausSeidel. GausSeidel seems to work best, but DICGaussSeidel might be better for more difficult problems. It is more expensive though.
nPreSweeps, nPostSweeps, nFinestSweeps: I use 0,2,2 and this should work for most problems. Feel free to experiment though.
Many thanks for that clear exp
Many thanks for that clear explanation Eugene!
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