The 5th bwHPC symposium will be held on September 24/25 in Freiburg. Its focus is on scientific projects carried out with the help of high performance computing resources supplied within the framework of the bwHPC initiative of the state of Baden-Württemberg. The symposium is free of charge and open to researchers from all scientific fields. Participation from outside Baden-Württemberg is explicitly encouraged. |
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The bwHPC symposium focuses on the presentation of scientific computing projects as well as on the progress and the success stories of the bwHPC initiative. The event offers a unique opportunity to engage in an active dialog between scientists using high performance compute resources, operators of bwHPC sites, and the bwHPC-S5 support centers. |
Wild animals are vectors and reservoirs of emerging infectious diseases with major implications on human health. Still little is known about the interactions of these pathogens and their main hosts in their natural environment. In my PhD project I studied several aspects of the immune and its interactions between the mallard duck and its pathogens. The methods ranged from gene expression profiling by RNA sequencing of experimentally immune-challenged mallards to large-scale re-sequencing of >100 immune genes in 96 wild duck samples of mallards and related duck species. To analyse these large data sets of genomic and transcriptomic nature I utilised the HPC systems of the HPCC5 in several ways. By combining population-scale genomic information and experimentally induced transcriptomic responses to pathogens with further approaches to measure physiological parameters of mallards I arrived at a comprehensive view on the interaction of diseases and their hosts in the wild.
This study investigates the disturbance of the chicken microbiome under the influence of minerals phosphorus (P) and calcium (Ca). Microbial taxonomy was elucidated targeting the taxonomic marker 16S rRNA gene, and functionality was acquired through metagenome sequencing. Both tasks comprise bioinformatic processing, which demands computational calculations, and they were done in the bwHPC infrastructure. A significant difference in the microbiota was observed in all diets. Lachnospiraceae was the most abundant family, in the treatment supplemented with P (33% digesta, and 37% mucosa). In the Ca supplemented diet, the presence of Peptococcaceae (11%, and 8%, respectively) was increased when compared with the other treatments. At the functional level, for both digesta and mucosa, the metabolite information registered higher abundance of genes (50%) in P and Ca diets, while in control was only 40%. Thus, changes in supplementations result in important modifications on the microbiome.
The focus of our work lies in exploring and analyzing the function of large-scale spiking neural networks that are inspired by the cerebral cortex of the mammalian brain. The Leaky Integrate-and-Fire model serves as a starting point to investigate, e.g., biologically inspired learning methods, auditory information processing, or phase transitions in large networks. While there is plenty of biological evidence for the existence of large-scale structures in neuronal networks, experimental access is limited. In addition to our neuromorphic hardware system, we rely on large-scale software simulations, e.g. using the NEST simulator, to examine aforementioned phenomena.
This talk gives an overview over research topics that take advantage of the bwHPC ecosystem.
Posters from Poster Session 1
Posters from Poster Session 1
Selected talks from researchers (bwHPC)
Providing dependencies for computational workflows in shared environments, like HPC clusters, requires consideration from users to define the software stack for a workflow to execute. The Environment Modules system is the tool of choice on BinAC for this purpose. In this work, we present a use case which requires an application stack not available via Environment Modules on BinAC. We propose the usage of a containerized software stack for this particular problem using the Singularity and Docker container platforms. We present a solution for the reproducible provisioning of identical software stacks across HPC and non-HPC environments. The approach uses a Docker image as the basis for a Singularity container. This allows to define arbitrary software stacks and to execute workflows across different environments, from local workstations to HPC clusters, providing identical versions of software and hence leading to the same computational output.
Registration for ZKI AK Supercomputing