%0 Journal Article %A S. I. Sobolev %T Hierarchical methods of performance and efficiency improving for~distributed computations with X-Com metacomputing system %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematičeskoe modelirovanie i programmirovanie %D 2010 %P 113-120 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURU_2010_6_a10/ %G ru %F VYURU_2010_6_a10