XT

Robotino® XT

Comparison of Cray XT 3 and XT 4 Scalability ∗

The Cray XT3 and XT4 have similar architectures, differing primarily in memory performance and in bandwidth between the node and interconnect. This paper evaluates and compares the scalability of the XT3 and XT4. Kernel benchmarks are used to verify and to quantify the performance differences between the systems. Application benchmarks are used to examine the impact of these differences on scal...

The Cray XT Compilers

The Cray XT3 and Cray XT4 supports compilers from the Portland Group, PathScale, and the GNU Compiler Collection. The goal of the paper is to provide Cray XT users with an overview of the different compilers available in the Cray XT Programming Environment. Discussion will highlight the feature and performance differences between the compilers and provide guidelines in determining which compiler

XT Capita Selecta

XT is a bundle of program-transformation tools. Stratego is part of this bundle, and is used as implementation language for many tools throughout its packages. Giving special attention to the role of Stratego, we discuss a selection of our XT experiences. These range from the construction of meta-tools to support Stratego programming, through Stratego techniques applied in constructing some of ...

The Xt-1 Vision Architecture

A mobile robot navigating in an unstructured environment faces many difficult problems for which vision may potentially offer useful solutions. The XT-1 (eXpectation based Template matching) architecture was developed in an attempt to address many of these problems with similar constructions. The current system handles such diverse problems as landmark and place recognition, the generation of o...