In this paper, we discuss a new approach to multiversion concurrency control that allows
highperformance transaction systems to support the on-line execution of long-running …

Collective algorithms are an essential part of MPI, allowing application programmers to
utilize underlying optimizations of common distributed operations. The MPI_Allgather …

High-performance computing (HPC) systems keep growing in scale and heterogeneity to
satisfy the increasing computational need, and this brings new challenges to the design of …

The increase in scale and heterogeneity of high-performance computing (HPC) systems
predispose the performance of Message Passing Interface (MPI) collective communications …

The increasing complexity of High Performance Computing (HPC) server architectures and
networks has made topology-and affinity-awareness a critical component of HPC application …

Many state-of-the-art parallel algorithms, which are widely used in scientific applications
executed on high-end computing systems, were designed in the twentieth century with …

All-gather collective communication is one of the most important communication primitives in
parallel and distributed computation, which plays an essential role in many high …

Many scientific simulations, using the Message Passing Interface (MPI) programming model,
are sensitive to the performance and scalability of reduction collective operations such as …

In the realm of parallel and distributed computation, All-gather operation, a process where
each node in a distributed system gathers data from all others, is pivotal. This operation …

This paper describes the design and implementation of InfiniBand (IB) CORE-Direct based
blocking and nonblocking broadcast operations within the Cheetah collective operation …