A method that may include calculating multiple costs associated with multiple intermediate allocations and selecting an intermediate allocation of the multiple intermediate allocations in response to the multiple costs thereby providing a selected cut. The calculating may include repetitively executing the following steps: (a) Calculating an intermediate allocation of the multiple faces between to different intermediate parts of the mesh thereby defining an intermediate cut. The intermediate allocation differs from a previous intermediate allocation by a change in an allocation of at least one border face of the multiple faces. (b) Calculating, using a cost function, a cost of the intermediate allocation that is responsive to a length of the intermediate cut, and a difference between areas of the different intermediate parts. (c) Determining, based upon a comparison between a cost associated with the previous intermediate allocation and the cost of the intermediate allocation whether to accept the change in the allocation of the at least one border face.