[petsc-users] Mat Off Proc Entries

Jared Crean jcrean01 at gmail.com
Tue Nov 20 10:40:45 CST 2018


Hello,

   What is the difference between MAG_IGNORE_OFF_PROC_ENTRIES and 
MAT_NO_OFF_PROC_ENTRIES?  The docs describe the first one as dropping 
off proc entries, and the second one talks about avoiding reductions in 
MatAssembly routines.  If I have a matrix where each process only 
assembles into the local part, should I set one or both of the flags?

     Jared Crean



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