Fande Kong <[email protected]> writes: > Hi all, > > If I do a matrix assembly with the flag MAT_FLUSH_ASSEMBLY, will it involve > any communications across processors?
Yes, that's the point of this assembly mode. You call it to flush the stash of values that need to be sent to other processes, to prevent it From using too much memory. (Or, when you need to switch between ADD_VALUES and INSERT_VALUES.)
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