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<DIV>Dear all,</DIV>
<DIV> </DIV>
<DIV>I got a question concerning the performance of the CBC-solver. I use
FlopC++ in combination with CBC under Linux and my professor GAMS with CBC under
Windows. We use the same test instances, but there are dramatic differences of
the performances of CBC. </DIV>
<DIV>After the generation of a test instance (does not matter whether FlopC++ or
GAMS), it takes only seconds for him to solve the problem. I need much, much,
much more time. </DIV>
<DIV>One test instance has about 660000 non-zeros in the coefficient matrix. It
takes about 250 seconds to solve on his computer, and I get the message
"KILLED"! </DIV>
<DIV>Where can be a software difference? Are there different starting
parameters? We both did not change CBC after downloading, we just connected them
to GAMS/FlopC++. </DIV>
<DIV>There is only one difference of the computers we use. We both have a 3GHZ
Inter Pentium 4, but I just got 1GB RAM, whereas he got 4GB RAM!</DIV>
<DIV>Is that the answer to the question above?</DIV>
<DIV> </DIV>
<DIV>Thanks in advance,</DIV>
<DIV> </DIV>
<DIV>Christian</DIV></FONT></BODY></HTML>