Cray GX

Cray GX is the successor architecture to Cray EX that was launched alongside the OLCF Discovery system.¹

It is 100% warm-water (40C) liquid-cooled and has pumps configured that allow mixing of blade types (and blade TDPs) within a rack.²

Cabinets are only 900 mm wide instead of 1,200 mm of Cray EX4000¹ and will use “25 percent less data center space per rack.” This implies that the rack depth remains comparable and the power per rack is comparable to Cray EX4000 (400 kW/rack).

Footnotes

1. HPE to Build Two Systems for Oak Ridge National Laboratory: Next-generation Exascale Supercomputer “Discovery” and AI Cluster “Lux” ↩ ↩²

2. Oak Ridge “Discovery” Supercomputer Spearheads New HPE Cray GX5000 Design ↩