Coarsening) At each level of the AMG hierarchy form [A.sub.strong] from A.
Table V presents the problem sizes along with the uniprocessor
For concreteness, consider augmenting the on-line algorithm with a faster processor in a uniprocessor
Furthermore, the benchmarks are mostly designed for measuring uniprocessors
though the NAS parallel benchmarks [Bailey et al.
This pairing of the world's hottest chip with a robust data--movement mechanism should make the XP--1000 the fastest uniprocessor
system on the market and attractive to technical professionals running computationally demanding applications such as large CAD assembly modeling and finite element analysis.
We assume that processing is carried out on a uniprocessor
workstation; the issue of parallelism is explicitly addressed in Section 5.4.
We have resisted the temptation to provide a more detailed model of the individual processors taking into account factors such as cache size or pipeline structure, and rely instead on the existing body of knowledge in implementing fast sequential algorithms on modern uniprocessor
systems to fill the gap.
Parallel-processing systems are especially appropriate for storing and managing huge amounts of data because no uniprocessor
system and no disk drive are fast enough to search for and transmit the data on demand, said Convex's Masson.
To complement this high-end unit, IBM also offers a mid range PS/2 Model 95 line of 486 uniprocessor
servers and the low-end, 20 MHz 386-based PS/2 Model 57.
Alpha AXP is Digital's 64-bit RISC computing architecture, designed to support fast, uniprocessor
and multiprocessor implementations that are scalable from palmtop to supercomputer.
The new generation typically starts out having about twice the uniprocessor
performance of the previous generation and about the same list price as the previous generation when it was new.
We assume that execution time of matrix multiplication algorithm on a uniprocessor
system is equal to