Michael Bareford
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View article: Emerging technologies: an AMD MI250X GPU-based platform for HPC applications
Emerging technologies: an AMD MI250X GPU-based platform for HPC applications Open
The last few years has seen an increased prevalence of GPU-based systems in national high-performance computing (HPC) services in many countries. A striking example is the United States Exascale programme, where almost all present and fore…
View article: Leveraging MPI RMA to optimize halo‐swapping communications in MONC on Cray machines
Leveraging MPI RMA to optimize halo‐swapping communications in MONC on Cray machines Open
Summary Remote Memory Access (RMA), also known as single‐sided communications, provides a way for reading and writing directly into the memory of other processes without having to issue explicit message passing style communication calls. P…
View article: On the trade-offs between energy to solution and runtime for real-world CFD test-cases
On the trade-offs between energy to solution and runtime for real-world CFD test-cases Open
This paper provides an insight into the optimisation of runtime and energy performance for two widely-used CFD codes. Energy efficiency is a hot-topic in HPC and methods to reduce the energy consumption of large machines are an active area…
View article: Shock heating in numerical simulations of kink-unstable coronal loops
Shock heating in numerical simulations of kink-unstable coronal loops Open
An analysis of the importance of shock heating within coronal magnetic fields has hitherto been a neglected area of study. We present new results obtained from nonlinear magnetohydrodynamic simulations of straight coronal loops. This work …