Sparsity patterns without constrained dofs #539
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Codecov ReportBase: 92.89% // Head: 92.69% // Decreases project coverage by
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## master #539 +/- ##
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- Coverage 92.89% 92.69% -0.20%
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- Hits 3763 3694 -69
- Misses 288 291 +3
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fredrikekre
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Would be nice to see some benchmarks on how much memory is saved (in for example the heat-example :) ) |
fredrikekre
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Basically none :D The number of constrained dofs are usually negligible compared to free dofs. |
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This patch adds a new keyword argument `keep_constrained::Bool=true` to `create_sparsity_pattern` which, when set to `false`, do not create entries in the global matrix for rows/values that correspond to constrained degrees of freedom. Naturally this can only be used with local condensation of constraints (cf. #528).
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This patch adds a new keyword argument
keep_constrained::Bool=truetocreate_sparsity_patternwhich, when set tofalse, do not createentries in the global matrix for rows/values that correspond to
constrained degrees of freedom. Naturally this can only be used with
local condensation of constraints (cf. #528).
Another necessary change included in this patch is that assembly nowMerged separately in #543.ignores entries in the local matrix that are zero (in particular
rows/columns in the local matrix which have been zeroed out in the local
condensation).