HPC facilities

GPGPU hardware for Numerical Simulations

Author: Adrian Jackson
Posted: 9 Oct 2013 | 11:47

The NAIS project (Numerical Algorithms and Intellegent Software), which EPCC is a member of, has recently purchased 8 NVidia K20 GPGPUs, and associated computer nodes to house them, for use by NAIS members and researchers.

Simulation code usage on HECToR

Author: Andy Turner
Posted: 24 May 2013 | 16:00

What sort of research is the HECToR supercomputing facility used for and what simulation software does it make use of?

EPCC measures the use of different simulation codes used on the HECToR facility to get an idea of which codes are used most and what size of jobs different code are used for. In this post I will take a look at which codes are used most on the facility and speculate whether we can infer anything from the patterns we see.

Energy Efficient Computing - Call for papers extended to May 15th 2013

Author: Terry Sloan
Posted: 12 Apr 2013 | 14:00

The deadline has been extended for submission of papers to the special session on Energy Efficient Systems at the 2013 IEEE International Conference on Systems, Man and Cybernetics.

Launching applications non-homogenously on Cray supercomputers

Author: Tom Edwards
Posted: 12 Apr 2013 | 11:31

The vast majority of applications running on HECToR today are designed around the Single Instruction Multiple Data (SIMD) parallel programming paradigm. Each processing element (PE), i.e. MPI rank or Fortran Coarray image, runs the same program and performs the same operations in parallel on the same or a similar amount of data. Usually these application are launched on the compute nodes homogenously, with the same number of processes spawned on each node and each with the same number of threads (if required).

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