4 papers
RAMC: Remote Access Memory Channels over HPE Slingshot
Whit Schonbein, Matthew G. F. Dosanjh, Scott Levy
In this paper, we present Remote Access Memory Channels (RAMC), an explicit one-sided communication library designed to leverage the capabilities of HPE Cray Slingshot network hard…
Co-Design and Evaluation of a CPU-Free MPI GPU Communication Abstraction and Implementation
Patrick G. Bridges, Derek Schafer, Jack Lange +7
Removing the CPU from the communication fast path is essential to efficient GPU-based ML and HPC application performance. However, existing GPU communication APIs either continue t…
Scaling All-to-all Operations Across Emerging Many-Core Supercomputers
Shannon Kinkead, Jackson Wesley, Whit Schonbein +3
Performant all-to-all collective operations in MPI are critical to fast Fourier transforms, transposition, and machine learning applications. There are many existing implementation…
Measuring Thread Timing to Assess the Feasibility of Early-bird Message Delivery
W. Pepper Marts, Matthew G. F. Dosanjh, Whit Schonbein +2
Early-bird communication is a communication/computation overlap technique that combines fine-grained communication with partitioned communication to improve application run-time. C…