GCA Squared

GCA: A Massively Parallel Model

We had introduced the massively parallel global cellular automata (GCA) model. Parallel algorithms derived from applications can be mapped straight forward onto this model. In this model a cell in the cell field is dynamically connected (access pattern, dynamic neighbourhood) to other cells. The model can be implemented by pointers stored in the cell state. Via these pointers, each cell has rea...

The GCA-w Massively Parallel Model

Error Squared Control

I am frequently asked to visit offshore production platforms to sort out problems with the oil export or the produced water quality where the ultimate issue is not poor control in the export or water-handling systems but due to over-aggressive level control at the reception end of the process. One of the tools available to decouple the front and back ends of the production train is error square...

Autocrine growth regulation of W12 and GCA cells in culture.

Two rat kidney cell lines transformed by two strains of ASV virus were investigated. It was demonstrated that these two lines (1) showed density-independent growth, (2) had a decreased requirement for serum in the culture medium, (3) had the ability to grow in a chemically defined medium (without serum), and the rate of this growth had increased with the increase in starting density of cells, a...

Implementing APL-like data parallel functions on a GCA machine

We show how data parallel operations can be implemented on a Global Cellular Automaton (GCA). For this purpose we implement a number of frequently used functions of the language APL. APL has been chosen because of the ability to express matrix and vector operations in a short and concise manner. It is shown how various operations on vectors and matrices can be executed through the execution of ...