Dynamic voltage and frequency scaling (DVFS) is a well-known technique to reduce the
power and/or energy consumption of various applications. While most processors provide …

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 …

One-sided communication is crucial to enabling communication concurrency. As core counts
have increased, particularly with many-core architectures, one-sided (RMA) communication …

MPI+ threads is gaining prominence as an alternative to the traditional" MPI everywhere"
model in order to better handle the disproportionate increase in the number of cores …

Hybrid MPI+ threads programming is gaining prominence, but, in practice, applications
perform slower with it compared to the MPI everywhere model. The most critical challenge to …

MPI includes all processes in MPI_COMM_WORLD; this is untenable for reasons of scale,
resiliency, and overhead. This paper offers a new approach, extending MPI with a new …

The difficulty of deep experimentation with Message Passing Interface (MPI)
implementations—which are quite large and complex—substantially raises the cost and …

Reaching Exascale will require leveraging massive parallelism while potentially leveraging
asynchronous communication to help achieve scalability at such large levels of concurrency …

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 …

Contemporary parallel scientific codes often rely on message passing for inter-process
communication. However, inefficient coding practices or multithreading (eg, via …