Computer history TNO-FEL: the ETA10-P
ETA10-P in a fancy black outfit
(for a Hollywood performance)
The ETA Systems logo
ETA 10 functional diagram
All models in the family of ETA10 supercomputers were
based on the same architecture as shown in the diagram above.
- The ETA10 had, depending on model and type,
from one to eight central processing units (CPUs), depending on model selection.
- Each CPU includes both a scalar processor and a vector processor:
- The scalar processor is characterized by independent, segmented, functional units,
a 256-word high-speed register file, and a 64-word instruction stack.
- The vector processor operates in parallel with the scalar processor and the input/
- The vector processor can link the result of one vector to the input of the next
vector instruction, thereby performing two operations on the input stream vector data.
- Each CPU has four million 64-bit words of central processor (CP) memory.
- Shared memory provides a large storage area that can be accessed by all
system processors, and is available in sizes from 8 million to 256 million
64-bit words, depending on model selection.
- The communication buffer provides a very high-speed memory common to all
processors that allows them to communicate and coordinate activities.
- 1 to 18 input/output units connect the ETA10 to peripherals and networks,
- The service unit, a ring of Apollo DN3000 workstations and DSP90 server modes,
provides the operator and maintenance interface.
- The ETA10 operates with a standard 64 bit word length, optional 32-bit mode
essentially doubles memory capacity and vector speed, 128-bit double precision
mode is also available.
- The ETA10 can be readily field upgraded to incorporate more memory or processing power.
ETA 10 models
(photo at FSU)
|Cycle time (ns)
||24 ||19 ||10.5 ||7 |
||1 or 2 ||1 or 2 ||1-4 ||2-8 |
|32 ||32 ||32 ||32 |
|Shared memory (MB)
||64-512 ||64-512 ||256-1024 ||512-2048 |
|750 ||947 ||3,429 ||10,289 |
||air ||air ||liquid nitrogen |
|liquid nitrogen |
|Max.# I/O units
||4 ||4 ||9 ||16 |
At the moment the decision to stop ETA was announced (April
17, 1989), seven LN2 and 27 air-cooled systems were installed at sites. In the
Netherlands three single and double processor air cooled ETA10 systems were
installed at RUG, ENR
ETA10-P ("Piper #23") at TNO-FEL
I/O unit and disk cabinet (right)