A method of loading data into register files that correspond to respective execution units within a data-parallel processor. The method includes: a) grinding the biomass, feeding the biomass into a gasifier while spraying superheated water vapor into the gasifier, controlling the gasifier at an operating temperature of 1200-1600\xb0 C. The distance between the slide guides is set to be less than the half of the maximum slide amount of the upper rail relative to the lower rail.