Tài liệu High Performance Connectors docx

... connector performance and is improved through an automated process. • What is the typical performance of un-tuned mated connectors in the field? Typical performance of non-tuned mated connectors ... white paper High Performance Connectors ADC works to continuously improve its products and processes with respect to quality and performance. Specifically, ADC has made ... fiber...

Ngày tải lên: 10/12/2013, 19:15

... HIGH PERFORMANCE DRIVES  E Levi, 2001 56 v qs * v ds e φ r j ω φ r i i i a b c * v v * * α β s s v qs ' v ds ' - i ds * qs i * ω * - ω P+I - P+I P+I i ds * i qs * ω r * L s L σ s qs i ds i - + e -j ... rotor flux is established in the machine, speed command equal to −40 % of the rated speed is HIGH PERFORMANCE DRIVES  E Levi, 2001 57 applied through a rate-of-change li...

Ngày tải lên: 26/12/2013, 01:17

... ( R i ) Figure 2.1 Uniform distribution (no skew) Highly Skewed 0 10000 20000 30000 40000 Number of Records (R i ) 12345678 Processor Number Figure 2.2 Highly skewed distribution example, jRjD100;000 ... each processor is uniform as expected—that is, 12,500 records each. In the highly skewed graph (Fig. 2.2), we use θ D 1 to model a high- skew distribution. The most heavily loaded proc...

Ngày tải lên: 21/01/2014, 18:20

... pro- cessing skew in parallel sorting is a challenge without which performance degradation can be expected, especially when a high degree of skewness is involved. ž As a rule of thumb for selecting ... be adopted: Ž If processing skew degree is high, then use parallel redistribution merge-all sort. Ž If both data skew and processing skew degrees are high OR no skew,then use parallel pa...

Ngày tải lên: 21/01/2014, 18:20

... High Performance MySQL: Optimi- zation, Backups, Replication, and More, Second Edition, by Baron Schwartz et al. Copyright 2008 O’Reilly Media, Inc., 9780596101718.” 156 | Chapter 4: Query Performance ... join strategy later in this chapter.) 160 | Chapter 4: Query Performance Optimization Query Execution Basics If you need to get high performance from your MySQL server, one of the...

Ngày tải lên: 10/12/2013, 06:15

... for the connection of the latest, highly reliable, high performance peripheral devices such as RAID disks. FC offers the advantages of connectivity to newer high performance RAID stor- age systems ... Benkert Toshiyuki Furui · Yoshiki Seo · Wolfgang Bez Editors High Performance Computing on Vector Systems Proceedings of the High Performance Computing Center Stuttgart, March 200...

Ngày tải lên: 15/12/2013, 13:15

... analyzing the performance using them the user can locate the program area in which a performance problem lies. Correcting these problems can improve the program performance. Figure 9 shows performance ... the achievable theoretical peak performance from the basic performance character- istics of an architecture such as memory bandwidth and peak performance. If performance is lim...

Ngày tải lên: 24/12/2013, 19:15

... a cluster of SMP’s which are interconnected by a high speed network switch, and each node comprises eight vector PE’s. In order to achieve high performance in such an architecture, the intra-node ... optical transition in higher energy region is also available in such nanotubes according to our first-principles calculation of dipole-matrix elements. We suspected that such high- energy e...

Ngày tải lên: 24/12/2013, 19:15

... to thank Uwe K¨uster of the High Performance Comput- ing Center Stuttgart’ (HLRS) for his continuing interest and most helpful advice and the staff of ‘NEC – High Performance Computing Europe’ ... also be seen in the sustained performance given in Table 2 as percentage of peak performance. The original code not written for any specific architecture has only a poor performance on the...

Ngày tải lên: 24/12/2013, 19:15

... Helicopter 135 8 Performance on NEC SX-8 Vector Computer In spring 2005 the next generation vector computer NEC SX-8 was installed as the successor of the NEC SX-6 at the High Performance Computing ... evaluation of the NEC SX-8 performance will be given in this section. The parallel performance of the NEC SX-8 is presented in Table 4. The data can be directly compared to the perfo...

Ngày tải lên: 24/12/2013, 19:15