<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div> If the user calls an memory allocation routine should we tell them IN THEIR FACE if they did not allocate enough?<div><br></div><div>1) For example, automatically set the error on allocation option? or<br><div><br></div><div>2) Have a new option that results in an ugly warning mess to the screeen?</div><div><br></div><div> We get lots of emails where people may have allocated wrong and we then tell them, one at a time, to set the flag,</div><div><br></div><div> Barry</div><div><br></div><div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 1);"><b>From: </b></span><span style="font-family:'Helvetica'; font-size:medium;">Jed Brown <<a href="mailto:jedbrown@mcs.anl.gov">jedbrown@mcs.anl.gov</a>><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 1);"><b>Date: </b></span><span style="font-family:'Helvetica'; font-size:medium;">January 11, 2012 8:32:57 AM CST<br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 1);"><b>To: </b></span><span style="font-family:'Helvetica'; font-size:medium;">PETSc users list <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 1);"><b>Subject: </b></span><span style="font-family:'Helvetica'; font-size:medium;"><b>Re: [petsc-users] lying about nullspaces</b><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 1);"><b>Reply-To: </b></span><span style="font-family:'Helvetica'; font-size:medium;">PETSc users list <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br></span></div><br><div class="gmail_quote">On Wed, Jan 11, 2012 at 09:16, Matthew Knepley <span dir="ltr"><<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>MatSetOption(A, <span style="background-color:rgb(255,255,255)">MAT_NEW_NONZERO_ALLOCATION_ERR, PETSC_TRUE);</span></div>
<div><span style="background-color:rgb(255,255,255)"><br></span></div><div><span style="background-color:rgb(255,255,255)"><a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatSetOption.html" target="_blank">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatSetOption.html</a></span></div>
</blockquote></div><div><br></div><div>If MatSetFromOptions() is called, these options can be used</div><br><div><div>-mat_new_nonzero_allocation_err</div></div><div>-mat_new_nonzero_location_err</div>
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