Red Storm was a supercomputer architecture designed for the US Department of Energy’s National Nuclear Security Administration Advanced Simulation and Computing Program.
[2] Red Storm was a partitioned, space shared, tightly coupled, massively parallel processing machine with a high performance 3D mesh network.
The Portals network programming API was used to ensure inter-processor communication can scale as large as the entire system, and was used on many different supercomputers, including the Intel Teraflops and Paragon.
[8] A userspace implementation of the Lustre file system, named liblustre, was ported to the Catamount environment using libsysio[9] library to provide POSIX-like semantics.
This filesystem client ran in the single-threaded Catamount environment without interrupts,[10] and only serviced IO requests when explicitly allowed by the application, to reduce jitter introduced by background file system operations.