Multi-core processors are growing as a new industry trend as single core processors rapidly
reach the physical limits of possible complexity and speed. In the new Top500 …

The Blue Gene/Q machine is the next generation in the line of IBM massively parallel
supercomputers, designed to scale to 262144 nodes and sixteen million threads. With each …

This paper presents a new low-level communication subsystem called Nemesis. Nemesis
has been designed and implemented to be scalable and efficient both in the intranode …

The multiplication of cores in today's architectures raises the importance of intra-node
communication in modern clusters and their impact on the overall parallel application …

As new processor and memory architectures advance, clusters start to be built from larger
SMP systems, which makes MPI intra-node communication a critical issue in high …

The emergence of multicore processors raises the need to efficiently transfer large amounts
of data between local processes. MPICH2 is a highly portable MPI implementation whose …

This paper presents the implementation of MPICH2 over the Nemesis communication
subsystem and the evaluation of its shared-memory performance. We describe design …

This paper describes SMARTMAP, an operating system technique that implements fixed
offset virtual memory addressing. SMARTMAP allows the application processes on a multi …

Modern processors have multiple cores on a chip to overcome power consumption and heat
dissipation issues. As more and more compute cores become available on a single node, it …

With the number of cores per node increasing in modern clusters, an efficient
implementation of intra-node communications is critical for application performance. MPI …