Modern scientific discovery is driven by an insatiable demand for computing performance.
The HPC community is targeting development of supercomputers able to sustain 1 ExaFlops …

Code maintainability, performance portability and future proofing are some of the key
challenges in this era of rapid change in High Performance Computing. Domain Specific …

We have developed a set of reduced, proxy applications (“MiniApps”) based on large-scale
application codes supported at the Oak Ridge Leadership Computing Facility (OLCF). The …

Reliability is an important design constraint in modern microprocessors, and one of the
fundamental reliability challenges is combating the effects of transient faults. This requires …

Virtual memory is a critical abstraction in modern computer systems. Its common model,
paging, is currently seeing considerable innovation, yet its implementations continue to be …

Abstract The High Performance Conjugate Gradient (HPCG) benchmark has been recently
proposed as a complement to the High Performance Linpack (HPL) benchmark currently …

Data is often communicated from different locations in application memory and is commonly
serialized (copied) to send buffers or from receive buffers. MPI datatypes are a way to avoid …

Understanding workload behavior plays an important role in performance studies. The
growing complexity of applications and architectures has increased the gap among …

The Intel Xeon Phi coprocessor offers high parallelism on energy-efficient hardware to
minimize energy consumption while maintaining performance. Dynamic frequency and …

Stencil computations are a key class of applications, widely used in the scientific computing
community, and a class that has particularly benefited from performance improvements on …