Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Engineering
Gpumap: A Transparently Gpu-Accelerated Python Map Function, Ivan Pachev, Chris Lupo
Gpumap: A Transparently Gpu-Accelerated Python Map Function, Ivan Pachev, Chris Lupo
Civil and Environmental Engineering
No abstract provided.
Effects Of Nonlinearity In Primary Systems On Acceleration In Secondary Systems: Piers, Wharves, And Marine Oil Terminals, Rakesh K. Goel
Effects Of Nonlinearity In Primary Systems On Acceleration In Secondary Systems: Piers, Wharves, And Marine Oil Terminals, Rakesh K. Goel
Civil and Environmental Engineering
This investigation examines the effects of nonlinearity in the primary system of the coupled primary-secondary systems on accelerations in the secondary systems during seismic loading. The coupled primary-secondary systems considered in this investigation are those typically found in piers, wharves, and marine oil terminals. This investigation first examines the effects of nonlinearity in the primary system on acceleration at the point of attachment of the secondary system to the primary system and found that: The acceleration at the point of attachment of the secodnary system to the primary system decreases with increasing level of nonlinearity in the primary system. …
Enhancing Regional Ocean Modeling Simulation Performance With The Xeon Phi Architecture, Chris Lupo, Maria Pantoja, Paul Choboter
Enhancing Regional Ocean Modeling Simulation Performance With The Xeon Phi Architecture, Chris Lupo, Maria Pantoja, Paul Choboter
Civil and Environmental Engineering
Ocean studies are crucial to many scientific disciplines. Due to the difficulty in probing the deep layers of the ocean and the scarcity of data in some of the oceans, the scientific community relies heavily on ocean simulation models. Ocean modeling is complex and computationally intensive, and improving the performance of these models will greatly advance and improve the work of ocean scientists. This paper presents a detailed exploration of the acceleration of the Regional Ocean Model System (ROMS) software with the latest Intel Xeon Phi x200 architectures. Both shared-memory and distributed-memory parallel computing models are evaluated. Results show run …
Taruc: A Topology-Aware Resource Utility And Contention Benchmark, Gavin Baker, Chris Lupo
Taruc: A Topology-Aware Resource Utility And Contention Benchmark, Gavin Baker, Chris Lupo
Civil and Environmental Engineering
Computer architects have increased hardware parallelism and power efficiency by integrating massively parallel hardware accelerators (coprocessors) into compute systems. Many modern HPC clusters now consist of multi-CPU nodes along with additional hardware accelerators in the form of graphics processing units (GPUs). Each CPU and GPU is integrated with system memory via communication links (QPI and PCIe) and multi-channel memory controllers. The increasing density of these heterogeneous computing systems has resulted in complex performance phenomena including nonuniform memory access (NUMA) and resource contention that make application performance hard to predict and tune. This paper presents the Topology Aware Resource Usability and …
Temperature Effects On The Swelling And Bentonite Extrusion Characteristics Of Gcls, James L. Hanson, Nazli Yesiller, Everett P. Allen
Temperature Effects On The Swelling And Bentonite Extrusion Characteristics Of Gcls, James L. Hanson, Nazli Yesiller, Everett P. Allen
Civil and Environmental Engineering
This investigation was conducted to evaluate effects of temperature on swelling and bentonite extrusion properties of GCLs. The swelling characteristics were determined using standardized test procedures and extrusion characteristics were determined using a new test method developed by the authors. Tests were conducted on a conventional medium-weight woven/nonwoven GCL. The range of test temperatures was 2 to 98°C (swelling tests) and -5 to 100°C (extrusion tests). The extrusion tests were conducted under stresses between 100 and 400 kPa and moisture contents between 50 and 150%. Temperature had significant effects on both swell and extrusion. The swell index ranged from 21 …