Cray Y-MP EL


Machine Type: Cray Y-MP EL (Entry Level)
Serial number: 5176
Year of introduction: 1991
CPU Type: Cray Y-MP EL (Vector processor, CMOS technology)
Number of processors: 4
Main memory: 128 MWords -> 1024 MByte
Word length: 64 bit
Binary compatibility: up to the Cray-1 (1976)
Local storage: 2x DD4 Hard Disks – 2,7 GB each, one 9 track tape drive
Network connectivity: 10 MBit Ethernet, 125 MBit FDDI
Specified performance: 133 MFlops per CPU peak, 4-8 times a Cray-1, 1/4 of a Cray-2
Measured peak performance: 460 MFlops (A 2.4 GHz P4/RDRAM is 770 MFlops on the same benchmark problem, huge matric multiply, with Linux gnu cc -O3)
Operating system: Cray UNICOS 8.0.3.1A (Unix-based)
Donated by: Leibniz Rechenzentrum, München

Hardware and spare parts:

S/NTypeP/NOriginIn use
1115
MEM-3290003440-A0WZ
702MEM-3290003440-A0WZ
1133MEM-3290003440-A0WZ
669MEM-3290063401WZ
981MEM-3290003440-A0LRZ-M
1131MEM-3290003440-A0LRZ-M
1086MEM-3290003440-A0LRZ-M
452MEM-3290003440-A0LRZ-M
764MEM-890070907-0303
CHMx
598MEM-890070901-0301
CHMx
783MEM-890070907-0303CHMx
765MEM-890070907-0303CHMx
52CPU9001007-0212CHMx
151CPU90010010-A000
LRZ-M
455CPU90010010-A000LRZ-M
478CPU90010012-A0
LRZ-M
571CPU90010012-A0
LRZ-M

Other machines on the web:
Rhode Island Computer Museum
The National Museum of Computing
Informatik-Sammlung Erlangen (ISER) der FAU Erlangen
The Jim Austin Computer Collection Incredibly four Cray Y-MP EL machines!