Computational experiment in era of HPC

HPC Environment Management: New Challenges in the Petaflop Era

High Performance Computing (HPC) is becoming much more popular nowadays. Currently, the biggest supercomputers in the world have hundreds of thousands of processors and consequently may have more software and hardware failures. HPC centers managers also have to deal with multiple clusters from different vendors with their particular architectures. However, since there are not enough HPC experts...

FEniCS-HPC: Coupled Multiphysics in Computational Fluid Dynamics

Computational Experiment in the Mechanics of Materials

A computational approach to the optimization of fracture resistance of multiphase materials (here high speed steels) by varying their microstructure is presented. The main points of the optimization of steels are as folIows: (1) development and verification of the model: numerical simulation of crack initiation and growth in real microstructures of steels, (2) computational experiment: simulati...

WaLBerla: HPC software design for computational engineering simulations

WaLBerla (Widely applicable Lattice-Boltzmann from Erlangen) is a massively parallel software framework supporting a wide range of physical phenomena. This article describes the software designs realizing the major goal of the framework, a good balance between expandabil-ity and scalable, highly optimized, hardware-dependent, special purpose kernels. To demonstrate our designs, we discuss the c...

Streaming Computational Science: Applications, Technology and Resource Management for HPC

Data streaming from on-line instruments, large scale simulations, and distributed sensors such as those found in transportation systems and urban environments point to the growing interest and important role of streaming data and related realtime steering and control. We define a stream to be a possibly unbounded sequence of events. Successive events may or may not be correlated and each event ...