[Ipopt] Where or how can I obtain the libhsl.dll?

Lewis I lewis369lewis at yahoo.com
Tue Jan 5 00:04:20 EST 2010

I can solve it now.
I have deleted too many lines in libhsl.def.
There should be 4 lines if i only use ma27.
@@    MA27ID
@@    MA27AD
@@    MA27BD
@@    MA27CD

But one more question, i do not find a obvious change when i change between mumps and hsl method. Do they only show a difference in large scale problem?

And which linear solver in ipopt is the more common solver when solving large scale problem? (mean which one usually has the best performance?)




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