C code parallelization with paragraph

Parallel programming has been attracting attention of programmers and researchers for many years. Parallelization is a very difficult task and may cause many runtime errors so some methods and tools facilitating this process are necessary. Parallel code can be prepared by a programmer or automatically by some compilers. As both approaches have advantages and disadvantages, it seems that a tool enabling manual and automatic parallelization can be very useful in the production of fast programs. Such a tool, called ParaGraph, was designed and implemented at the Institute of Computer Science, Warsaw University of Technology. ParaGraph is platform independent and plug-in in Eclipse IDE. In this paper an experiment comparing the effectiveness of manual and automatic parallelization of a program with Paragraph is described.