Convex_SPP-1600 Cray_T3D- Cray_T3E-900 DEC_8400_5-350_cluster DEC_8400_5-440_cluster Hitachi_SR_2201 IBM-SP2-thin_II IBM-SP_P2SC_120MHz-thin Meiko_CS-2 TMC_CM-2_64k_7_MHz TMC_CM-2__8k_7_MHz TMC_CM-5E