Productivity tips for Apocrita cluster users

Posted on Wed 23 October 2019 in tutorial by Simon Butcher

This article presents a selection of useful tips for running successful and well-performing jobs on the QMUL Apocrita cluster.


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Comparing common compression tools using real-world data

Posted on Thu 10 October 2019 in article by Simon Butcher

Compression tools can significantly reduce the amount of disk space consumed by your data. In this two-part article, we will look at the effectiveness of some compression tools on real-world data sets, make some recommendations, and perhaps persuade you that compression is worth the effort.


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Simplification of parallel queues on Apocrita

Posted on Thu 27 June 2019 in news by Simon Butcher

We are simplifying the way that the multi-node parallel jobs are run on the cluster.

Currently, users wishing to run multi-node MPI jobs on the public queues must choose beforehand whether to run on the nxv parallel nodes or the sdv parallel nodes, and to configure the job accordingly for …


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Cluster Update Summary

Posted on Wed 12 June 2019 in news by Simon Butcher

As part of our commitment to providing stable and manageable systems, here is a round-up of some recent updates we have been working on behind the scenes:

1) Upgrade of all HPC cluster nodes to CentOS 7.6

Over the last couple of weeks, you may have noticed a few …


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Running Machine Learning workloads on Apocrita

Posted on Fri 22 March 2019 in tutorial by Simon Butcher

In this tutorial we'll be showing you how to run a TensorFlow job using the GPU nodes on the Apocrita HPC cluster. We will expand upon the essentials provided on the QMUL HPC docs site, and provide more explanation of the process. We'll start with installation, and run through some …


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Sizing your Apocrita jobs for quicker results

Posted on Mon 28 January 2019 in tutorial by Simon Butcher

At any one time, a typical HPC cluster is usually full. This is not such a bad thing, since it means the substantial investment is working hard for the money, rather than sitting idle. A less ideal situation is having to wait too long to get your research results. However …


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Cluster Hardware Upgrades and Additions

Posted on Tue 04 December 2018 in news by Simon Butcher

As part of our commitment to regular upgrades to the HPC service, and to keep up with ever-growing demand, we are pleased to announce the addition of new hardware to the Apocrita HPC Cluster for the benefit of all QMUL Researchers.

The additions form part of series of exciting infrastructure …


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AI tools

Posted on Sat 15 September 2018 in news by Simon Butcher

For the increasing number of Researchers working with Deep Learning technologies, we also have the existing GPU nodes attached to Apocrita. Tensorflow is available, and we are working on adding more machine learning tools.

We also host a local copy of ImageNet, a database of 14 Million annotated images for …


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new sdv nodes

Posted on Sat 15 September 2018 in news by Simon Butcher

A small number of new sdv nodes running Intel Skylake processors have been deployed. A larger batch of these nodes will be added to the cluster before the end of the year.


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POWER servers

Posted on Sat 15 September 2018 in news by Simon Butcher

QMUL installed two IBM AC922 POWER 9 servers to support research into deep learning and artificial intelligence, the first of their kind in UK HE. These servers come with a suite of customised Machine learning tools such as TensorFlow and Caffe. We are currently running a pilot scheme with a …


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