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Re: In place ILU(0) factorization

Hong,


The space required remains the same, but
the row-compressed matrix format
for the factor will be changed with the
reordering.
To store the new format over the
existing memory, temp space has to be allocated during
implementation. Thus replacing the original memory with
newly allocated space would make implementation easier.


I guess this depends upon the implementation of the ILU(0) factorization for the AIJ or BAIJ formats, which I didn't (nor do I ever really want to) look into.

Thanks for the help,

Laslo