Kevin J. Barker

TL;DR: A detailed architectural description of Roadrunner and a detailed performance analysis of the system are presented and a case study of optimizing the MPI-based application Sweep3D to exploit Roadrunner's hybrid architecture is also included.

TL;DR: A potentially cheaper and more power-efficient approach to building high-performance interconnects by proposing a two-network interconnect: An Optical Circuit Switching (OCS) network handling long-lived bulk data transfers, using optical switches; and a secondary lower-bandwidth Electronic Packet switching network.

TL;DR: A thorough evaluation on five latest types of modern GPU interconnects from six high-end servers and HPC platforms shows that, for an application running in a multi-GPU node, choosing the right GPU combination can impose considerable impact on GPU communication efficiency, as well as the application's overall performance.

TL;DR: In this paper, a load balancing framework and runtime software system for supporting the development of adaptive applications on distributed-memory parallel computers is described, which can be used at the discretion of the application developer in order to simplify program development and to eliminate complex bookkeeping associated with mobile data objects.

TL;DR: In this article, the authors conduct a thorough evaluation on five latest types of modern GPU interconnects: PCIe, NVLink-V1, NVlink-V2, NVSwitch, and NVLinkSLI.