National Climate-Computing Research Center

Climate Research Accelerated


The National Climate-Computing Research Center (NCRC) is located within the National Center for Computational Sciences at the Oak Ridge National Laboratory. The NCRC is a collaborative effort between the Department of Energy and the National Atmospheric and Oceanic Administration.

Responsive image
Responsive image
Responsive image


Gaea is comprised of two Cray XC40 systems. The aggregate Gaea system contains more than 200 terabytes of memory and a peak calculating capability greater than 5.25 petaflops (quadrillion floating point operations per second).

A high-capacity parallel filesystem provides over 32 petabytes fast access storage. The center-wide filesystem is connected using FDR InfiniBand to the center’s compute and data-transfer resources.

NOAA research partners access data remotely through speedy interconnections. Two 10-gigabit (billion bit) lambdas, or optical waves, pass data to NOAA’s national research network through peering points at Atlanta and Chicago.

C3 Stats C4 Stats F2 Stats
  • Cray XC40-LC Haswell
  • 1,504 compute nodes (2 x Intel Haswell 16-cores per node)
  • 64GB DDR4 per node; 96TB total
  • 1.77 PF peak
  • Cray XC40-LC Broadwell
  • 2,656 compute nodes (2 x Intel Broadwell 18-cores per node)
  • 64GB DDR4 per node; 145TB total
  • 3.52 PF peak
  • DDN Lustre
  • 32 PB total usable; ZFS compression
  • 36 OSS; 72 OST; 4 MDS

End-user support on Gaea is handled by individual NOAA sites. Please contact your site’s tech support representatives for issues regarding Gaea.

Oak Ridge National Laboratory is managed by UT-Battelle LLC for the US Department of Energy