Hi, Does anyone compare the different between MPICH and MPICH2? What are the greatest new features in MPICH2? And does the MPICH2 have large performance increase than MPICH? I would like to see some benchmarks that compare them. Best regards, John Lau -- John Lau Chi Fai Cluster Technology Ltd. cflau at clustertech.com Tel: (852) 2655-6114 Fax: (852) 2994-2101