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<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>I am new to
Coin-Clp. I am considering Coin-Clp for a case where many almost similar LP
problems are to be solved.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>Here time can be
saved by using the final basis from one problem as an initial basis for the
next. In most</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>cases, only the RHS
differs, so the problem is suitable for a dual
algorithm.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>I believe it is
quite straightforward to have Clp start from a given basis, one could say, from
logical basis information.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>My question
is: Can the numerical basis matrix factors be preserved between
successive calls, or will it be necessary</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>to carry out the
numerical factorization anew for each model solved? I would be grateful if
somebody could answer.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>Thanks in
advance,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005>Anders</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=110020313-21022005>_________________________________</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>Anders
Gjelsvik</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>Sintef Energy
Research</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>7465 Trondheim,
Norway</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=110020313-21022005>e-mail <A
href="mailto:anders.gjelsvik@sintef.no">anders.gjelsvik@sintef.no</A></SPAN></FONT></DIV></BODY></HTML>