Evaluating the performance of parallel subsurface simulators: An illustrative example with PFLOTRAN
GE Hammond, PC Lichtner… - Water resources research, 2014 - Wiley Online Library
To better inform the subsurface scientist on the expected performance of parallel simulators,
this work investigates performance of the reactive multiphase flow and multicomponent …
this work investigates performance of the reactive multiphase flow and multicomponent …
Run-to-run variability on Xeon Phi based Cray XC systems
The increasing complexity of HPC systems has introduced new sources of variability, which
can contribute to significant differences in run-to-run performance of applications. With …
can contribute to significant differences in run-to-run performance of applications. With …
HermitCore: a unikernel for extreme scale computing
We expect that the size and the complexity of future supercomputers will increase on their
path to exascale systems and beyond. Therefore, system software has to adapt to the …
path to exascale systems and beyond. Therefore, system software has to adapt to the …
On the scalability, performance isolation and device driver transparency of the IHK/McKernel hybrid lightweight kernel
Extreme degree of parallelism in high-end computing requires low operating system noise
so that large scale, bulk-synchronous parallel applications can be run efficiently. Noiseless …
so that large scale, bulk-synchronous parallel applications can be run efficiently. Noiseless …
[PDF][PDF] Leveraging the cray linux environment core specialization feature to realize mpi asynchronous progress on cray xe systems
H Pritchard, D Roweth, D Henseler… - Proceedings of the Cray …, 2012 - cug.org
Cray has enhanced the Linux operating system with a Core Specialization (CoreSpec)
feature that allows for differentiated use of the compute cores available on Cray XE compute …
feature that allows for differentiated use of the compute cores available on Cray XE compute …
Understanding and isolating the noise in the Linux kernel
Scientific applications are interrupted by the operating system far too often. Historically,
operating systems have been optimized to time-share a single resource, the CPU. We now …
operating systems have been optimized to time-share a single resource, the CPU. We now …
Performance and scalability of lightweight multi-kernel based operating systems
Multi-kernels leverage today's multi-core chips to run multiple operating system (OS)
kernels, typically a Light Weight Kernel (LWK) and a Linux kernel, simultaneously. The LWK …
kernels, typically a Light Weight Kernel (LWK) and a Linux kernel, simultaneously. The LWK …
Coordinating garbage collectionfor arrays of solid-state drives
Although solid-state drives (SSDs) offer significant performance improvements over hard
disk drives (HDDs) for a number of workloads, they can exhibit substantial variance in …
disk drives (HDDs) for a number of workloads, they can exhibit substantial variance in …
Harmonia: A globally coordinated garbage collector for arrays of solid-state drives
Solid-State Drives (SSDs) offer significant performance improvements over hard disk drives
(HDD) on a number of workloads. The frequency of garbage collection (GC) activity is …
(HDD) on a number of workloads. The frequency of garbage collection (GC) activity is …
Exploring the design space of combining linux with lightweight kernels for extreme scale computing
As systems sizes increase to exascale and beyond, there is a need to enhance the system
software to meet the needs and challenges of applications. The evolutionary versus …
software to meet the needs and challenges of applications. The evolutionary versus …