483 citations · 1k across the 69 of their papers we have counts for
10 papers · 1 filter
Spritz: Path-Aware Load Balancing in Low-Diameter Networks
Tommaso Bonato, Ales Kubicek, Abdul Kabbani +3
Low-diameter topologies such as Dragonfly and Slim Fly are increasingly adopted in HPC and datacenter networks, yet existing load balancing techniques either rely on proprietary in…
A High-Performance Design, Implementation, Deployment, and Evaluation of The Slim Fly Network
Nils Blach, Maciej Besta, Daniele De Sensi +10
Novel low-diameter network topologies such as Slim Fly (SF) offer significant cost and power advantages over the established Fat Tree, Clos, or Dragonfly. To spearhead the adoption…
PolarStar: Expanding the Scalability Horizon of Diameter-3 Networks
Kartik Lakhotia, Laura Monroe, Kelly Isham +4
We present PolarStar, a novel family of diameter-3 network topologies derived from the star product of low-diameter factor graphs. PolarStar gives the largest known diameter-3 netw…
PolarFly: A Cost-Effective and Flexible Low-Diameter Topology
Kartik Lakhotia, Maciej Besta, Laura Monroe +4
In this paper we present PolarFly, a diameter-2 network topology based on the Erdos-Renyi family of polarity graphs from finite geometry. This is a highly scalable low-diameter top…
Building Blocks for Network-Accelerated Distributed File Systems
Salvatore Di Girolamo, Daniele De Sensi, Konstantin Taranov +5
High-performance clusters and datacenters pose increasingly demanding requirements on storage systems. If these systems do not operate at scale, applications are doomed to become I…
EvalNet: A Practical Toolchain for Generation and Analysis of Extreme-Scale Interconnects
Maciej Besta, Patrick Iff, Marcel Schneider +10
The diversity of communication paths in a network, especially non-minimal paths, is a key enabler of performance at extreme scales. We present EvalNet, a toolchain for scalable gen…
High-Performance Routing with Multipathing and Path Diversity in Ethernet and HPC Networks
Maciej Besta, Jens Domke, Marcel Schneider +5
The recent line of research into topology design focuses on lowering network diameter. Many low-diameter topologies such as Slim Fly or Jellyfish that substantially reduce cost, po…
Slim Fly: A Cost Effective Low-Diameter Network Topology
Maciej Besta, Torsten Hoefler
We introduce a high-performance cost-effective network topology called Slim Fly that approaches the theoretically optimal network diameter. Slim Fly is based on graphs that approxi…
Network-Accelerated Non-Contiguous Memory Transfers
Salvatore Di Girolamo, Konstantin Taranov, Andreas Kurth +7
Applications often communicate data that is non-contiguous in the send- or the receive-buffer, e.g., when exchanging a column of a matrix stored in row-major order. While non-conti…
FatPaths: Routing in Supercomputers and Data Centers when Shortest Paths Fall Short
Maciej Besta, Marcel Schneider, Karolina Cynk +5
We introduce FatPaths: a simple, generic, and robust routing architecture that enables state-of-the-art low-diameter topologies such as Slim Fly to achieve unprecedented performanc…