ICHEC welcomes international students for PRACE Summer of HPC

International students join ICHEC for annual PRACE Summer of HPC programme.

ICHEC welcomes four summer students as the annual PRACE Summer of HPC programme kicks off. The students, Oliver Legg (University of Liverpool, UK), Valentin Trophime (Télécom SudParis, France), Rabia Ozdogan (Izmir Institute of Technology, Turkey) and Niels Hvidberg (University of Copenhagen, Denmark) will be “virtually hosted” by ICHEC to carry out two summer projects, supervised by ICHEC staff. The projects are entitled “Parallelising Earth Observation Workflow”  and “Parallel anytime branch and bound algorithm for finding the treewidth of graphs”.

The students are expected to complete the projects by the end of August - when they will present their work as short videos in the Summer of HPC Youtube channel along with written reports describing the main outcomes.The first project, “Parallelizing Earth Observation Workflow”, Rabia and Niels will work with earth observation data and optimise the workflow to deal with big data that are coming from satellite missions. The specific case study will involve processing satellite images from Sentinel-2 mission to compute Normalized Difference Vegetation Index that will give an indication of the presence of vegetation on the ground or water. The computation workflow will involve Python based processing together with Java based Graph Processing Toolkit present in the SNAP software used to handle imagery. At the end of the project, the optimal, yet scalable approach will be identified where the technique can be replicated for similar processing.In the “Parallel anytime branch and bound algorithm for finding the treewidth of graphs” project, Oli and Valentin will develop an efficient parallel algorithm for determining good upper bounds, if not the exact value, of a quantity called treewidth for arbitrary graphs. While computing the treewidth of an arbitrary graph is known to be an NP hard problem, being able to find good upper bounds for the treewidth is very useful for many important applications. One area where this is particularly important is in simulating quantum computers.

Simon Wong, Education, Training and Outreach Programme Manager, ICHEC, said,

"We wish them all well with their projects and hope they enjoy their time with ICHEC." 

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