Collective communication operations, used by many scientific applications, tend to limit
overall parallel application performance and scalability. Computer systems are becoming …

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

Collective communication operations in the Message Passing Interface (MPI) consume a
significant amount of time at scale, degrading the performance of scientific applications …

An efficient implementation of the Process Management Interface (PMI) is crucial to enable
fast start-up of MPI jobs. We propose three extensions to the PMI specification: 1) a blocking …

Graph-based computations are commonly used across various data intensive computing
domains ranging from social networks to biological systems. On distributed memory …

High performance computing (HPC) has begun scaling beyond the Petaflop range towards
the Exaflop (1000 Petaflops) mark. One of the major concerns throughout the development …

The scalability and performance of collective communication operations limit the scalability
and performance of many scientific applications. This paper presents two new blocking and …

It has been previously shown that the visual approach to the analysis of the behaviour of
growth patterns can provide a viable solution to the understanding of the physical behaviour …

Moodle is a well-known open-source LMS. Moodle approach to collaborative learning is just
limited to¿ putting people around a table¿. It provides a means for participants to interact …

Fault-tolerant computing options based on the use of restart information stored on and off
node and the use of reserve processes have been developed, implemented and tested in a …