TY - GEN
T1 - HPC interconnection networks
T2 - The key to exascale computing
AU - Vetter, Jeffrey S.
AU - Tipparaju, Vinod
AU - Yu, Weikuan
AU - Roth, Philip C.
PY - 2009
Y1 - 2009
N2 - Scientists from many domains desire to address problems within the next decade that, by all estimates, require computer systems that can achieve sustained exaflop computing rates (i.e., 1×1018 floating point operations per second) with real-world applications. Simply scaling existing designs is insufficient: analysis of current technological trends suggests that only a few architectural components are on track to reach the performance levels needed for exascale computing. The network connecting computer system nodes presents a particularly difficult challenge because of the prevalence of a wide variety of communication patterns and collective communication operations in algorithms used in scientific applications and their tendency to be the most significant limit to application scalability. Researchers at Oak Ridge National Laboratory and elsewhere are actively working to overcome these network-related scalability barriers using advanced hardware and software design, alternative network topologies, and performance prediction using modeling and simulation.
AB - Scientists from many domains desire to address problems within the next decade that, by all estimates, require computer systems that can achieve sustained exaflop computing rates (i.e., 1×1018 floating point operations per second) with real-world applications. Simply scaling existing designs is insufficient: analysis of current technological trends suggests that only a few architectural components are on track to reach the performance levels needed for exascale computing. The network connecting computer system nodes presents a particularly difficult challenge because of the prevalence of a wide variety of communication patterns and collective communication operations in algorithms used in scientific applications and their tendency to be the most significant limit to application scalability. Researchers at Oak Ridge National Laboratory and elsewhere are actively working to overcome these network-related scalability barriers using advanced hardware and software design, alternative network topologies, and performance prediction using modeling and simulation.
KW - Exascale
KW - high-performance computing
KW - interconnection networks
UR - http://www.scopus.com/inward/record.url?scp=84906572493&partnerID=8YFLogxK
U2 - 10.3233/978-1-60750-073-5-95
DO - 10.3233/978-1-60750-073-5-95
M3 - Conference contribution
AN - SCOPUS:84906572493
SN - 9781607500735
T3 - Advances in Parallel Computing
SP - 95
EP - 106
BT - High Speed and Large Scale Scientific Computing
PB - IOS Press BV
ER -