Extremely demanding (ultrascale) computations in geosciences

MSMT project no. LD15105, 2015 - 2017

The project, in content interconnected with the project NESUS (COST Action IC1305, Network for Sustainable UltraScale Computing), is dedicated to the extremely high-performance computing in geosciences and their engineering applications. In details, the project focuses on the field of micromechanics, identification of parameters or new technologies of the earth's crust exploitation, such as an acquisition of geothermal energy or an underground storage of spent nuclear fuel.

Extremely demanding computations assume the use of massively parallel computer systems, requiring an implementation and development of new approaches and suitable numerical algorithms. Among others, the implementation of Krylov subspace methods with limited needs of communication or various new types of preconditioning belong to such algorithms.

The project aims to both the of latest results and development of such methods and algorithms, and the application of new methods in specific applications, namely for solution of large scale systems arising from FEM analysis of materials with complicated inner structure defined by CT images, or for solution of problems of identification of material parameters and quantification of uncertainties, for instance. The other project aim is to study the needs of demanding applications in geosciences.

In the project, the research team plans to take advantage of its experience in both areas - as parallel computing, as well as solution of demanding geo-applications. This is demonstrated by its participation in international projects HIPERGEOS I (1994 - 1998), HIPERGEOS II (1998 - 2002) or DECOVALEX (since 2008 till now). Currently, the workplace of the research team is one of partners in the supercomputing project of the IT4Innovations Centre of Excellence in Ostrava.