Tomáš Dulík

Automatic evaluation of correctness and originality of source codes

This paper introduces a system for automatic evaluation of correctness and originality of source codes submitted by students enrolled in courses dealing with computer programming. Automatic correctness checking consists of searching for plagiarisms in assignments submitted earlier and checking the correct implementation of algorithms. User interface is implemented as a Moodle module using its Plagiarism API. The complete system is published with GPLv3 license; therefore other learning institutions can use it as well.

Implementation and Optimization of Stereo Matching Algorithm on ARM Processors

This paper analyses possibility of implementation of stereo matching algorithms on ARM based processors with special attention on the final algorithm performance. Semi global block matching and Block matching algorithms were chosen as a base of this research. First, the technologies used in the implementation are described, then the optimization approach is discussed. The main part of this paper deals with algorithms performance depending on the chosen optimization.

Performance Analysis of Built-in Parallel Reduction’s Implementation in OpenMP C/C++ Language Extension

Parallel reduction algorithms are frequent in high performance computing areas, thus, modern parallel programming toolkits and languages often offer support for these algorithms. This article discusses important implementation aspects of built-in support for parallel reduction found in well-known OpenMP C/C++ language extension. It shows that the implementation in widely used GCC compiler is not efficient and suggests usage of custom reduction implementation improving the computational performance.