Parallel computers: GE aims at super-array contract

Experience with Parallel Computers at NASA Ames

Beginning in 1988, the Numerical Aerodynamic Simulation (NAS) organization at NASA Ames Research Center has studied the usability of highly parallel computers on computational uid dynamics and other aerophysics applications. Presently this organization operates a CM-2 with 32,768 nodes and an Intel iPSC/860 with 128 nodes. This note gives an overview of the experience in using these systems, hi...

Optical Parallel Digital Computers – Pure Optical Parallel Array Logic System – Yoshiki

Super phase array

For a long time, phase arrays have been used in a variety of wave transmission applications because of their simplicity and versatility. Conventionally, there is a trade-off between the compactness of a phase array and its directivity. In this paper, we demonstrate how by embedding a normal phase array within a superlens (made of negative refractive index material) we can overcome this constrai...

QCD on Parallel Computers at the HLRZ Supercomputing Center

Large-scale simulations of Quantum Chromodynamics (QCD) which were performed on different parallel high-end supercomputers at the HLRZ supercomputing center, are introduced. Emphasis is laid on the hardware used and the parallelization strategies.

Periodic I/O Scheduling for Super-Computers

With the ever-growing need of data in HPC applications, the congestion at the I/O level becomes critical in super-computers. Architectural enhancement such as burst-buffers and pre-fetching are added to machines, but are not sufficient to prevent congestion. Recent online I/O scheduling strategies have been put in place, but they add an additional congestion point and overheads in the computati...