Cray CX1 - Comparison With Cray XT5h

Comparison With Cray XT5h

The CX1 and XT5h are fundamentally different architectures, and due to their differences, XT5 blades may not be used in place of CX1 blades, and vice versa. To compare the two:

  • An XT5h supercomputer supports vector, FPGA, and scalar compute blades (X2, XR1, and XT4/XT5 blades, respectively), typically supported by service blades for network access and hosting a Lustre filesystem layered over several RAID modules.
    • The XT5h's operating system is UNICOS/lc, a combination of SUSE Linux Enterprise Server and Sandia's Catamount or Cray's Compute Node Linux.
  • A CX1 supercomputer supports GPU and scalar compute blades (Nvidia Quadro and Intel Xeon, respectively), typically supported by enclosed network switches (Gigabit Ethernet, Infiniband) and service blades hosting RAID modules.
    • CX1-supported operating systems include Red Hat Enterprise Linux and Windows HPC Server 2008.

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