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

Imbalance among components of large scale parallel simulations can adversely affect
overall application performance. Software induced imbalance has been extensively studied …

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

The Message Passing Interface (MPI) is a programming model for develo** high-
performance applications on large-scale machines. A key component of MPI is its collective …

This paper describes Petal, a prototype tool that uses compiler-analysis techniques to
automate code transformations to hide communication costs behind computation by …

Operating System (OS) noise is a well-known phenomenon in which OS activities interfere
with the execution of large-scale parallel applications. Due to OS noise, feature-rich software …

Synchronisation in the presence of noise and hardware performance variability is a key
challenge that prevents applications from scaling to large problems and machines. Using …

Recently, a new variant of the BiCGStab method, known as the pipelined BiCGStab, has
been proposed. This method can achieve a higher degree of scalability and speed-up rates …

Coordinated checkpoint/restart is currently the dominant approach to mitigating the impact of
failures on important scientific applications running on large‐scale distributed systems …