Resilience is a major roadblock for HPC executions on future exascale systems. These
systems will typically gather millions of CPU cores running up to a billion threads …

The next generation of supercomputers will break the exascale barrier. Soon we will have
systems capable of at least one quintillion (billion billion) floating-point operations per …

Today's computational, experimental, and observational sciences rely on computations that
involve many related tasks. The success of a scientific mission often hinges on the computer …

Large scientific applications deployed on current petascale systems expend a significant
amount of their execution time dum** checkpoint files to remote storage. New fault tolerant …

Abstract In recent years, High Performance Computing (HPC) systems have been shifting
from expensive massively parallel architectures to clusters of commodity PCs to take …

As supercomputers are entering an era of massive parallelism where the frequency of faults
is increasing, the MPI Standard remains distressingly vague on the consequence of failures …

As high-end computing machines continue to grow in size, issues such as fault tolerance
and reliability limit application scalability. Current techniques to ensure progress across …

This paper addresses non-linear gyrokinetic simulations of ion temperature gradient (ITG)
turbulence in tokamak plasmas. The electrostatic GYSELA code is one of the few …

Dense matrix factorizations, such as LU, Cholesky and QR, are widely used for scientific
applications that require solving systems of linear equations, eigenvalues and linear least …

As the size of supercomputers increases, the probability of system failure grows
substantially, posing an increasingly significant challenge for scalability. It is important to …