[Coin-lpsolver] Repeat calls to ClpInterior::primalDual()
John J Forrest
jjforre at us.ibm.com
Thu Apr 19 12:27:24 EDT 2007
Mikhail,
Should be more reliable using a ClpSimplex model and then
ClpSimplex::barrier.
John Forrest
Mikhail Nediak
<mnediak at business
.queensu.ca> To
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[Coin-lpsolver] Repeat calls to
ClpInterior::primalDual()
04/17/07 12:42 PM
Hi,
I am using a stable release of Clp and wondering about the behavior of
ClpInterior under repeat calls to primalDual() after problem data
modification. Specifically, I have the following questions:
* Is an instance of ClpInterior class intended to be reused in this way?
* If it is, are there any methods to be called in addition to modifying
the problem followed by primalDual()?
* With debug enabled, a repeat call to primalDual() causes an
invalid assertion in line 631 of ClpInterior.cpp
assert (!deltaZ_);
inside createWorkingData() method. This is not surprising since
deltaZ_ is not deallocated in deleteWorkingData() method, in contrast
to, say, deltaX_. Is this a feature or a bug?
Thanks in advance.
Best,
Mikhail
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