<div class="gmail_extra">Yes, it's faster to understand this error message than to have "mysteriously slow performance".</div><div class="gmail_extra"><br></div><div class="gmail_extra"><i>* Preallocation routines now automatically set MAT_NEW_NONZERO_ALLOCATION_ERR, if you intentionally preallocate less than necessary then use MatSetOption(mat,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE) to disable the error generation.<br>
</i><br><a href="http://www.mcs.anl.gov/petsc/documentation/changes/33.html">http://www.mcs.anl.gov/petsc/documentation/changes/33.html</a><br><br><div class="gmail_quote">On Thu, Nov 1, 2012 at 8:57 AM, w_ang_temp <span dir="ltr"><<a href="mailto:w_ang_temp@163.com" target="_blank">w_ang_temp@163.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div> Do you mean that the two versions have a different in this point? If I use the new version, I have to</div>
<div>make some modifications on my codes?</div></blockquote></div><br></div>