The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Data replication is a key technique to achievedata availability, reliability, and optimized performance indistributed storage systems and data centers. In recent years, with the emergence of new storage devices, heterogeneousobject-based storage system, such as a storage system withthe co-existence of hard disk drives and solid state drives, have become increasingly attractive as they combine merits...
Elastic distributed storage systems have been increasingly studied in recent years because power consumption has become a major problem in data centers. Much progress has been made in improving the agility of resizing small- and large-scale distributed storage systems. However, most of these studies focus on metadata based distributed storage systems. On the other hand, emerging consistent hashing...
MPI collective I/O is a widely used I/O method that helps data-intensive scientific applications gain better I/O performance. However, it has been observed that existing collective I/O strategies do not perform well due to the access contention problem. Existing collective I/O optimization strategies mainly focus on the I/O phase efficiency and ignore the shuffle cost that may limit the potential...
Performance of reading scientific data from a parallel file system depends on the organization of data on physical storage devices. Data is often immutable after producers of data, such as large-scale simulations, experiments, and observations, write the data to the parallel file system. As a result, read performance of data analysis tasks is often slow when the read pattern does not conform with...
According to economic analysis, the city road have exist its own supply and demand, the papers put forward the ways of relaxation of traffic jam. If want to relax the city traffic jam, we can interweave the measures as follows: lead the demand of citizen in peak load periods, developing the public traffic and appropriate city layout so that increase the supply of road.
Parallel applications benefit considerably from the rapid advance of processor architectures and the available massive computational capability, but their performance suffers from large latency of I/O accesses. The poor I/O performance has been attributed as a critical cause of the low sustained performance of parallel systems. Collective I/O is widely considered a critical solution that exploits...
Parallel applications can benefit greatly from massive computational capability, but their performance suffers from large latency of I/O accesses. The poor I/O performance has been attributed as a critical cause of the low sustained performance of parallel computing systems. In this study, we propose a data layout-aware optimization strategy to promote a better integration of the parallel I/O middleware...
A new mixed-integrator-based bi-quad cell is presented. An alternative synthesis mechanism of complex poles is proposed comparing to source-follower-based bi-quad cells which is designed applying positive feedback technique. Using negative feedback technique to combine different integrator, the proposed bi-quad cell synthesizes complex poles for designing continuous-time filter. It exhibits various...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.