Added comment in ParticleGroup::rebuildIndexList() about breaking of strict O(N/P) scaling
Added comment in ParticleGroup::rebuildIndexList() about breaking of strict O(N/P) scaling

joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue