Neuberger’s double-pass algorithm

A note on Neuberger’s double pass algorithm

We analyze Neuberger’s double pass algorithm for the matrix-vector multiplication R(H) · Y (where R(H) is (n − 1, n)-th degree rational polynomial of positive definite operator H), and show that the number of floating point operations is independent of the degree n, provided that the number of sites is much larger than the number of iterations in the conjugate gradient. This implies that the ma...

Thermal Performance of a Double-pass Solar Air Heater

This study analyzes the thermal performance of solar thermal energy using double-pass absorber plate in Sanandaj, Iran. To this end, a mathematical model was encoded according to the energy and exergy balance equations and solved by MATLAB software. Given the environmental conditions and radiation intensity of a winter day in Sanandaj, the effects of external parameters such as radiation intens...

A Differential Double Pass Transistor Logic Unit

In this paper we present a new differential logic unit with duplicated functional outputs. The logic functions as well as their inverses are implemented within a single Logic Unit (LU) cell. The hardware overhead for the implementation of the proposed LU is lower than the hardware overhead required for standard LU implemented with standard CMOS logic style. This new implementation is attractive...

Double-pass variants for multi-shift BiCGstab(`)

Understanding aberrations by using double-pass techniques.