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<TITLE>MatILUInfo</TITLE>
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<A NAME="MatILUInfo"><H1>MatILUInfo</H1></A>
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Data based into the matrix ILU factorization routines
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<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
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PetscReal levels; /* ILU(levels) */
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PetscReal fill; /* expected fill; nonzeros in factored matrix/nonzeros in original matrix*/
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PetscReal diagonal_fill; /* force diagonal to fill in if initially not filled */
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PetscReal dt; /* drop tolerance */
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PetscReal dtcol; /* tolerance for pivoting */
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PetscReal dtcount; /* maximum nonzeros to be allowed per row */
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PetscReal damping; /* scaling of identity added to matrix to prevent zero pivots */
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PetscReal damp; /* if is 1.0 and factorization fails, damp until successful */
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PetscReal zeropivot; /* pivot is called zero if less than this */
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PetscReal pivotinblocks; /* for BAIJ and SBAIJ matrices pivot in factorization on blocks, default 1.0
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factorization may be faster if do not pivot */
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In Fortran these are simply double precision arrays of <A HREF="../Sys/size.html#size">size</A> MAT_ILUINFO_SIZE
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Notes: These are not usually directly used by users, instead use the <A HREF="../PC/PC.html#PC">PC</A> type of ILU
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All entries are double precision.
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<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
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<A HREF="../Mat/MatILUFactorSymbolic.html#MatILUFactorSymbolic">MatILUFactorSymbolic</A>(), <A HREF="../Mat/MatILUFactor.html#MatILUFactor">MatILUFactor</A>(), <A HREF="../Mat/MatLUInfo.html#MatLUInfo">MatLUInfo</A>, <A HREF="../Mat/MatCholeskyInfo.html#MatCholeskyInfo">MatCholeskyInfo</A>
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<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
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<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/../../include/petscmat.h.html#MatILUInfo">src/mat/../../include/petscmat.h</A>
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