[Scip] no cleanupcols(root) when branching early?

[Sebastian Ruther]

   Hello,

I would like to restate my question:

When I set the cleanupcols flags to true (root and/or other nodes) and
do early branching as described in the pricer description, no columns
are removed from the LP. The reason is that only focusnodeToFork calls
SCIPlpCleanupNew while focusnodeToPseudofork doesn't.
When the pricer returns  SCIP_DIDNOTRUN the aborted flag is set to true
and so SCIP always creates a Pseudofork.

Is there a reason why a pseudofork is not allowed to remove columns? Can
I add similar lines of code from focusnodeToFork to focusnodeToPseudofork?


Thank you for your help,
Sebastian



On 6/12/2012 5:59 PM, Sebastian Ruther wrote:
>    Hello,
>
> When I set the cleanupcols flags to true (root and/or other nodes) and
> do early branching as described in the pricer description, no columns
> are removed from the LP. The reason is that only focusnodeToFork calls
> SCIPlpCleanupNew while focusnodeToPseudofork doesn't.
> When the pricer returns  SCIP_DIDNOTRUN the aborted flag is set to true
> and so SCIP always creates a Pseudofork.
>
> Is there a reason why a pseudofork is not allowed to remove columns? Can
> I add similar lines of code from focusnodeToFork to focusnodeToPseudofork?
>
>
> Thank you for your help,
> Sebastian
>
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