Current System Load

The plot below shows the status of nodes on the current Cirrus service. A description of each of the status types is provided below the plot.

Cirrus Node Status graph

Note: the long running reservation visible in the plot corresponds to the short QoS which is used to support small, short jobs with fast turnaround time.

Known Issues

The Object Store (WoS) is currently unavailable. We are working with the vendor to restore storage as soon as possible.
We apologise for the inconvenience caused by this unplanned outage.

Current Issues

No Current Issues

Recent Issues

No recent issues

Service Calendar and Maintenance

Maintenance Sessions:Quarter 4 2021 (1st Oct - 31st December 2021)

Status Type Start End System User Impact Reason
Planned At-Risk 27/10/21 0900 27/10/21 1700 Cirrus Period of up to 30mins when external connections are not possible. Compute nodes will continue to run jobs. Network upgrade at the Advanced Computing Facility (ACF)
Planned Outage 03/11/21 0900 03/11/21 1700 Cirrus Full system unavailable during maintenance session. Third-party maintenance on cooling system.

Wednesday 8th September

Modules Deletions

As part of our regular maintenance of the Cirrus Service, we would like to remove outdated, broken or unused modules.

Module  
ansys/17.2 Please use later version
ansys/19.2 Please use later version
ansys/2020R1 Please use later version
Intel 19.0.0.117 Please use intel-19.5 or later.
matlab/R2018a Please use later version
nvidia/cuda-10.1 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia/cuda-10.2 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia/cuda-11.0 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia/mathlibs-10.1 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia/mathlibs-10.2 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia/compilers-20.9 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
nvidia-compilers-mpi-20.9 Please use the latest NVIDIA HPC SDK. See “module avail nvidia/nvhpc” for current versions.
openmpi/4.0.3 Please use openmpi/4.1.0
openmpi/4.0.3-gcc8 Please use openmpi/4.1.0
openmpi/4.0.5-ucx Please use openmpi/4.1.0
openmpi/4.1.0-cuda Please use openmpi/4.1.0-cuda-11.2
openmpi/4.1.0-cuda-10.1 Please use openmpi/4.1.0-cuda-11.2
openmpi/4.1.0-cuda-10.2 Please use openmpi/4.1.0-cuda-11.2
openmpi/4.1.0-ucx-gcc8 Please use openmpi/4.1.0
R/3.4.0 Please use later version
singularity/3.6.1 Please use singularity/3.7.2 (--with-setuid install)
singularity/3.7.0 Please use singularity/3.7.2 (--with-setuid install)
singularity/3.7.1 Please use singularity/3.7.2 (--with-setuid install)
miniconda3/4.9.2-py38 Please use miniconda3/4.9.2-gpu
miniconda3/4.9.2-py38-torch Please use miniconda3/4.9.2-gpu-torch
miniconda3/4.9.2-py38-tensorflow Please use miniconda3/4.9.2-gpu-tensorflow

Please get in touch by Wednesday 1st September if you have an issue with any module being removed.

Completed Maintenance Sessions

Wednesday 18th August

The networking maintenance has now been completed successfully at the Advanced Computing Facility (ACF).

At Risk Maintenance Sessions

There is an ‘At-Risk’ Session provisionally booked every Wednesday from 1000 - 1200. A user mailing will be sent if any work is going to take place which may impact users.

Service Calendar

We maintain a calendar for the Cirrus service that lists upcoming events (such as training courses and maintenance sessions):

We keep maintenance downtime to a minimum on the service but do occaisionally need to perform essential work on the system. Maintenance sessions are used to ensure that:

Additional maintenance sessions can be scheduled for major hardware or software updates; major upgrades to facility plant and infrastructure; acceptance testing following major service upgrades and statutory electrical testing.