The Portals 4.0.2 Networking Programming Interface
Sandia National Laboratories (SNL), Albuquerque, NM (United States). New Mexico Small Business Assistance (NMSBA) Program, NM (United States), Brian Barrett, USDOE Assistant Secretary for Human Resources and Administration, Dublin (Ireland) IBM, Ronald Brightwell, Ryan Grant, Karl Hemmert, Kevin Pedretti, Kyle Wheeler, Keith Underwood, Rolf Riesen, Arthur B. ‘Barney’ Maccabe, Trammell Hudson · 2014
This report presents a specification for the Portals 4 network programming interface. Portals 4 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4 is well suited to massively parallel processing and embedded systems. Portals 4 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandia's Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities.