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Title: Universal Common Communication Substrate (UCCS) Specification; Universal Common Communication Substrate (UCCS) Implementation

Universal Common Communication Substrate (UCCS) is a low-level communication substrate that exposes high-performance communication primitives, while providing network interoperability. It is intended to support multiple upper layer protocol (ULPs) or programming models including SHMEM,UPC,Titanium,Co-Array Fortran,Global Arrays,MPI,GASNet, and File I/O. it provides various communication operations including one-sided and two-sided point-to-point, collectives, and remote atomic operations. In addition to operations for ULPs, it provides an out-of-band communication channel required typically required to wire-up communication libraries.
Publication Date:
OSTI Identifier:
Report Number(s):
UCCS; 003409WKSTN00
DOE Contract Number:
Software Revision:
Software Package Number:
Software Package Contents:
Open Source Software package available from Oak Ridge National Laboratory at the following URL:
Software CPU:
Open Source:
Source Code Available:
Related Software:
Research Org:
Oak Ridge National Laboratory
Sponsoring Org:
United States Department of Energy
Contributing Orgs:
Pavel Shamis, Manjunath Gorentla Venkata, Stephen W. Poole, Jeffery A. Kuehn, Richard L. Graham, George Bosilca, Aurelien Bouteiller,Thomas Herault, Aaron Donald Welch, and Tony Curtis
Country of Publication:
United States

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