id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 445,Performance of NEMO 3.1,ebehrens,nemo,"NEMO 3.1 on a NEC SX9 has half of the performance compared to NEMO 2.3. This can be attributed to the communication along the north-fold boundary condition. We have performed the following test: 1. ORCA05 on 4x1 PE under NEMO 2.3 2. ORCA05 on 4x1 PE under NEMO 3.1 (with IOF) 3. ORCA05 on 4x1 PE under NEMO 3.1 jperio=1 (with IOF) ",Bug,closed,high,,OCE,v3.1,,fixed,MPI,