Migrating from Cray Y-MP to Cray T90 and T3E

Abstract

The paper describes some aspects of application migration from Cray Y-MP systems to Cray T90 and T3E platforms at KFA. Major migration steps are outlined and performance data are given for all involved systems. This includes a comparison of T3E and T3D performance for selected Fortran kernels and application codes. Furthermore, communication bandwidth and latency are compared