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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="SNES_NORM_INITIAL_ONLY"><H1>SNES_NORM_INITIAL_ONLY</H1></A>
Compute the function and its L2 at iteration 0, but do not update it.
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This method is useful in composed methods, when a true solution might actually be found before <A HREF="../SNES/SNESSolve.html#SNESSolve">SNESSolve</A>() is called.
This option enables the solve to abort on the zeroth iteration if this is the case.
<P>
For solvers that require the computation of the L2 norm of the function as part of the method, this merely cancels
the norm computation at the last iteration (if possible).
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNES/SNESNormSchedule.html#SNESNormSchedule">SNESNormSchedule</A>, <A HREF="../SNES/SNESSetNormSchedule.html#SNESSetNormSchedule">SNESSetNormSchedule</A>(), <A HREF="../SNES/SNES_NORM_FINAL_ONLY.html#SNES_NORM_FINAL_ONLY">SNES_NORM_FINAL_ONLY</A>, <A HREF="../SNES/SNES_NORM_INITIAL_FINAL_ONLY.html#SNES_NORM_INITIAL_FINAL_ONLY">SNES_NORM_INITIAL_FINAL_ONLY</A>
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/snes/../../include/petscsnes.h.html#SNES_NORM_INITIAL_ONLY">src/snes/../../include/petscsnes.h</A>
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