We propose a new algorathm called Cycr'ac Ex,-hange for all-to-allpersonalzzed exchange an a 2 0 mesh. Thas algorzthm fully anterleaves communzcatzon an both damensaons of a mesh. We have compared b y samulataon the performance of thas algorzthm wath that of the Quadrant Exchange method prevaously proposed an the laterature [2]. The results show that the new alg,srathm as faster for a range of machzne sue, probr'em saze and st a r t up/tra nsm ass2 o n rat z 0.

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