All Stories

When good compilers go bad

Many people rely on compilers, for languages such as C, C++ and Fortran, to create executable programs from source code. Just like our source code, compilers themselves may have bugs. In this post we look at common forms of compiler bug, with examples, and what we can do when our work is affected by such an issue.

in rse, Dec 16, 2019

Modules Update December 2019

Since the last module update in August, we have added 23 modules to dev, added 22 modules to production and removed 4 modules.

in modules, Dec 11, 2019

Productivity tips for Apocrita cluster users

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

in tutorial, Oct 23, 2019

Comparing common compression tools using real-world data

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.

in article, Oct 10, 2019

Modules Update August 2019

Since the last update in April, we have updated the following module files:

in modules, Aug 09, 2019

Simplification of parallel queues on Apocrita

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

in news, Jun 27, 2019

Getting REAL with Fortran

Fortran provides a variety of intrinsic representations of real numbers. In this post we look at what these representations are and how we choose a particular representation for our work.

in rse, Jun 12, 2019

Cluster update summary

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:

in news, Jun 12, 2019

Storage Upgrade June 2019

Apocrita Research Data Storage: Notice of “at risk” period

in news, Jun 12, 2019

Modules Update April 2019

Since the last update in March, we have updated the following module files:

in modules, Apr 26, 2019