| Article ID: | iaor2008719 |
| Country: | United Kingdom |
| Volume: | 8 |
| Issue: | 2 |
| Start Page Number: | 179 |
| End Page Number: | 190 |
| Publication Date: | Mar 2005 |
| Journal: | Journal of Scheduling |
| Authors: | Bampis Evripidis, Milis I., Afrati F., Finta L. |
We consider the problem of scheduling trees on two identical processors in order to minimize the makespan. We assume that tasks have unit execution times, and arcs are associated with large identical integer communication delays. We prove that the problem is NP-hard in the strong sense even when restricted to the class of binary trees, and we provide a polynomia1-time algorithm for complete binary trees.