<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Jun 30, 2011, at 2:48 PM, Rolf Rabenseifner wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Main decision that we must do:<br>- How must we define<br> -- MPI_Op_create (with a callback with choice buffer), and<br> -- MPI_Errhandler_create (without such a choice buffer callback)?<br><br>- Main question for this:<br> Which rules do we have for callbacks and BIND(C)?<br> (a full list of all callbacks are in MPI-2.2, page 617)<font class="Apple-style-span" color="#000000"><font class="Apple-style-span" color="#144FAE"><br></font></font></span></blockquote><br></div><div>Hopefully not we can move on to solving these final issues.</div><div><br></div><div>-craig</div></body></html>