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<div class="">On , 2020Feb14, at 09:47, Junchao Zhang via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a>> wrote:</div>
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<div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Barry
 recently added a useful check to catch number of nonzero overflow, ierr = PetscIntCast(nz64,&nz);</span></div>
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<div class="">Is that only activated in debug versions of the installation?</div>
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<div class="">Victor.</div>
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