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RSEHPC@ISC25: Tools and Techniques for Continuous Integration and Benchmarking
No full textThis summary paper presents the outcomes of the RSEHPC workshop at ISC25, which convened experts from the Research Software Engineering and High-Performance Computing communities to examine the integration of Continuous Integration and Continuous Benchmarking (CI/CB) throughout the HPC system life cycle. Through keynote and lightning talks as well as through lively discussions, participants explored the use of CI/CB from system design and procurement to deployment and production use. The paper highlights three case studies: KIT’s CI/CB services in production for flexible HPC benchmarking; JSC’s deployment of exaCB for system-wide benchmarking during the JUPITER exascale system preparations; and RIKEN R-CCS’s integration of CI/CB in the early design phase of the FugakuNEXT project. User perspectives from software developers of projects like OpenFOAM, PIConGPU, and libNEGF underscore both the growing importance and the practical challenges of implementing CI/CB in diverse and complex HPC environments. A recurring theme is the tension between the need for customized solutions and the drawbacks of fragmentation, which hinder reproducibility, portability, and collaboration. The paper concludes with a call to action for the HPC community to establish common standards for CI/CB workflows and data formats. By making benchmarking practices more FAIR (Findable, Accessible, Interoperable, Reproducible), the community can enhance software sustainability and operational excellence in HPC ecosystems
MPC-Based Multifunctional V2G Operation in Multienergy Systems
No full textThis article presents an operational strategy for Vehicle-to-Grid (V2G) capable charging stations in multienergy systems (MESs). We present a novel model-predictive control (MPC) formulation based on the operation of four-quadrant charging stations and the behavior of electric vehicle drivers. The presented approach enables V2G capable charging units to serve multiple functions, including voltage regulation, power loss reduction, and MES energy management. Thus, the proposed MPC approach reduces violations of operational limits and improves the efficient use of MES components, such as photovoltaic systems and heat pumps. MPC with a V2G mode regulator is implemented to ensure efficient real-time operation of the MES. The proposed strategy is evaluated using a realistic MES inspired by the Forschungszentrum Jülich campus. Further tests conducted on a modified version of the IEEE 123-bus system demonstrate the scalability of the proposed V2G algorithm
Massive-Parallel Trajectory Calculations (MPTRAC) (v3.1)
No full textMassive-Parallel Trajectory Calculations (MPTRAC) is a Lagrangian particle dispersion model for the analysis of atmospheric transport processes in the free troposphere and stratosphere
IASI Code Collection (v1.2)
No full textThis repository provides a collection of codes for the analysis of observations of Eumetsat's Infrared Atmospheric Sounding Interferometer (IASI)
Jump, Diffuse, Average: Bayesian Computation for Metabolic Flux Inference under Model Uncertainty
No full textMicrogels with controlled network topologies by photocrosslinking-assisted continuous precipitation polymerization
No full text
An overview of production routes of the non-standard positron emitter 86gY with emphasis on a comparative analysis of the 86Sr(p,n)- and 86Sr(d,2n)-reactions
No full textA very brief overview of the hitherto investigated production routes of 86gY is given, and a comparative analysis of its production via the two low-energy reactions, namely (p,n) and (d,2n) on 96.4% enriched 86Sr as target material, is presented. Based on our recent cross- section measurements, the calculated yields of 86gY via the two reactions were compared, and the levels of co-produced isotopic impurities were estimated. At low-energy medical cyclotrons (Ep < 20 MeV; Ed <10 MeV) the use of the (p, n) reaction is superior, both in terms of the yield of 86gY and the levels of radionuclidic impurities. At medium-sized cyclotrons, on the other hand, the (d, 2n) reaction leads to higher yield of 86gY, but the level of radionuclidic impurities is also higher. The method of choice for production of 86gY thus remains the (p,n) reaction on enriched 86Sr