During the HiPEAC conference (17-19 January in Munich), the HiDALGO2 and ESIWACE3 centres of excellence jointly organised a workshop entitled “Towards reliable Digital Twin – advancing applications and tools capabilities for Global Challenges”, whose main organiser was Marcin Lawenda, Ph.D. Eng. from the HPC New Architectures Department.
The HiPEAC conference is one of the most important European forums for experts in computer architecture, programming models, compilers and operating systems for general-purpose, embedded and cyber-physical systems.
During the session, participants had the opportunity to learn about the various techniques used to build high-performance simulation systems in the field of Global Systems Science. The training was divided into four thematic blocks: digital twin applications, performance improvement, uncertainty estimation and HPC access instrumentation.
Representatives of PSNC actively participated in the workshop and gave presentations on various topics: Łukasz Szustak,, Ph.D. Eng. (co-design), Michał Kulczewski (uncertainty estimation) and Bartosz Bosak (access to HPC systems).
Łukasz Szustak presented the latest achievements in adapting parallel codes of large-scale applications to a wide range of modern high performance computing systems. The scope of the work includes the development of a methodology for adapting selected scientific applications to modern HPC systems, taking into account the wide range of x86-64 and ARM processors. An important outcome of the ongoing work is to find a balance and synergy between parallel computing and massively multi-core processor architectures to enable performance calibration of the tested applications.
The HiDALGO2 project is not only developing applications from a functional point of view, increasing their efficiency and preparing them for deployment on EXA-scale machines. Attention is also being paid to estimating the uncertainty of the input parameters and the model itself, thereby increasing the quality of the results and the reliability of the models. At the HiPEAC conference, PSNC representatives encouraged users working on grand challenge applications to take advantage of mUQSA (multiscale uncertainty quantification and sensitivity analysis), a PSNC tool developed since the VECMA project that allows virtually non-invasive uncertainty estimation for any large-scale application.
As part of a workshop presentation entitled “Unleashing the potential of HPC with QCG-Portal”, Bartosz Bosak presented the unique functionalities and features of the QCG toolkit and services being developed by the Large Scale Applications and Services Department. Special emphasis was placed on introducing the workshop participants to the possibilities offered by the web-based QCG-Portal solution for building intuitive and customised interfaces for the execution of computational tasks on high-performance computers. In addition, the QCG-PilotJob software was presented, which enables the creation and efficient execution of dynamic computing scenarios consisting of a large number of tasks in a cluster environment.