Optimizing compiler performance by applying data speculation within modulo scheduled loops to achieve a higher degree of instruction-level parallelism. Thereafter, plasma is generated by a mixed gas of a second inert gas and one or more gaseous molecules, and a silicon compound layer containing at least a part of the elements constituting the gaseous molecules is formed on the surface of the silicon gas. The number of flutes described for each zone may vary as well as whether the flutes are meshing or non-meshing and angled or non-angled. The time value can be obtained from a distributed key value store using a key generated from the request. The first goal length is adjustable. The catalyst comprises titanium, magnesium halogen and a mixed electron-donor and a catalyst for the polymerization of olefins comprising: the catalyst component; an organic aluminum compound; and an organic silicon compound.