Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Comparing the NYU Ultracomputer with other large-scale parallel processors

Technical Report ·
OSTI ID:5372751
We describe the proposed NYU Ultracomputer, a shared memory MIMD parallel machine composed of thousands of autonomous processing elements. This machine uses an enhanced message switching network having the topology of an ..cap omega..-network to approximate the ideal of conflict-free access to a common memory and to implement efficiently a new fetch-and-add synchronization primitive. We outline the hardware required to construct such a system, consisting of 4096 processors, using 1990 technology and refer to other work indicating how the goal of a distributed operating system free from serial bottlenecks can be achieved by employing the fetch-and-add primitive. Finally, we compare the Ultracomputer project with other research in parallel processing.
Research Organization:
New York Univ., NY (USA). Courant Mathematics and Computing Lab.
DOE Contract Number:
AC02-76ER03077
OSTI ID:
5372751
Report Number(s):
DOE/ER/03077-205; ON: DE84006043
Country of Publication:
United States
Language:
English