The Exascale Computing Project (ECP) Software Technology (ST) Focus Area is
responsible for develo** critical software capabilities that will enable successful execution …

The Message Passing Interface (MPI) has been one of the most prominent programming
paradigms in high-performance computing (HPC) for the past decade. Lately, with changes …

The two most common parallel execution models for many-core CPUs today are
multiprocess (eg, MPI) and multithread (eg, OpenMP). The multiprocess model allows each …

Distributed-memory multi-core clusters enable in-memory processing of very large graphs
with billions of nodes and edges. Recent distributed graph analytics systems have been built …

In this article, we investigate contention management in lock-based thread-safe MPI
libraries. Specifically, we make two assumptions:(1) locks are the only form of …

Adaptive MPI is an implementation of the MPI standard that supports the virtualization of
ranks as user‐level threads, rather than OS processes. In this work, we optimize the …

Efforts to mitigate lock contention from concurrent threaded accesses to MPI have reduced
contention through fine-grained locking, avoided locking altogether by offloading …

In various embodiments, a parallel processor implements a graphics processing pipeline
that generates rendered images via a shading program. In operation, the parallel processor …

Attaining high performance with MPI applications requires efficient message matching to
minimize message processing overheads and the latency these overheads introduce into …

Parallel computing is one of the top priorities in computer science. The main means of
parallel processing information is a distributed computing system (CS)-a composition of …