HWM (Singapore) - - Trends -

$ VLgQL­fiFDQW SHUIRUPDQFH ERWWOHQHFN LQ G38 FRPSXWLQg KDV DOwDyV EHHQ the act of mov­ing data be­tween main mem­ory sys­tems and graph­ics mem­ory. NVIDIA’s ex­ist­ing GPU tech­nol­ogy, in­clud­ing the pow­er­ful Ke­pler ar­chi­tec­ture found on the GTX Ti­tan, doesn’t al­low the graph­ics pro­cess­ing unit to ac­cess sys­tem mem­ory di­rectly. In­stead, the CPU and GPU store data on their own re­spec­tive (and ex­clu­sive) mem­ory sys­tems. Dur­ing com­pu­ta­tional op­er­a­tions, data trans­fer be­tween the two pro­cess­ing units is car­ried out via an in­ter­con­nect chan­nel. This trans­fer of data in­volves copy­ing of in­for­ma­tion; as such, this in­tro­duces both re­dun­dancy as well as per­for­mance la­tency.

En­ter Het­ero­ge­neous Sys­tem Ar­chi­tec­ture (HSA), an ini­tia­tive driven by pow­er­house play­ers such as AMD, ARM, Texas In­stru­ments, Sam­sung Elec­tron­ics and Qual­comm, which aims to in­te­grate both CPU and GPU mem­ory, as well as elim­i­nate the LQHI­fiFLHQFLHV FDXVHG Ey WKH

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