[gecode-users] multiple non parallel search in different threads

[TeXitoi]

Hi!

I use Gecode in a special way:
 - first I generate a problem
 - then I clone (using space->clone(false)) 2 times the problem
 - on each clone, I add some constraints and branching
 - then I launch simultaneously a DFS on each clone in parallel in 2
   differents threads. The options of the DFS is clone=false (to not
   manually delete my manual clone) and default threading mode (so
   sequencial search).

It (randomly) segfault inside Gecode (most of the time in _clone()). I
suspect that the search use clone(true), and that there is problems
with my 2 simultaneous searchs. After reading MPG, I was thinking that
it should work, but I now suspect that each clone in DFS must use false.

Am I right? How to force clone(false) without doing parallel search in
DFS?

Thanks.

-- 
Guillaume Pinot                               http://www.texitoi.eu

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