共查询到10条相似文献，搜索用时 218 毫秒
1.
DONG Jing-yi DING Jun MENG Rui TONG Wei-qin School of Computer Engineering Science Shanghai University Shanghai China 《上海大学学报(英文版)》2000,(Z1)
1 Introduction1.1 MOderationWith the development of netWorldng technology,cluster-based Supercomputer is widely accepted becauseof its high ratio of perfonnance/cost in the sense of peakpeifonnance. And SMP (shared memory Processor)nodes will improve the overall pdrirmance. OneaPProach to Programming SMP clusterS is tO use acombination of shared memory pro~g at the levelof each SMP unit and explicit message passing betweenSMPs. This mixed-mode style of coding would requirethe Progral… 相似文献
2.
MENG Rui LI Guo-ping DONG Jing-yi Wei-qin School of Computer Engineering Science Shanghai University Shanghai China 《上海大学学报(英文版)》2000,(Z1)
1 Introduction1.1 MotivationNetWork-based high peifonnance computing isgaining increasing pOPularity among parallel computingcommunity. Furthennore, with the develOPment ofnetWorking t6chnology, the computing concept ofcluSter-based or cluster-of-clusterS computing is widelyaccepted, which calls for pndlel environment thatsuPPOrtS heterogeneous computation.Current pndlel en~ent such as MPlll2]Provides an easy-tO-use way for Programmers tO writeparallel Pro~s. UnfO~ly, MPI portiDg is … 相似文献
3.
With the wide acceptance of the computing concept of cluster-based or cluster-of-clusters computing, network-based high
performance computing is gaining increasing popularity among parallel computing community. Current parallel environments such as MPI
(Message Passing Interface) or BSP (Bulk Synchronous Parallel) can not apply readily to heterogeneous computing platform. In order to
exploit the maximum performance potential that a heterogeneous environment brings, we have made some experiments on implementing
BSP in pure Java, a fully platform-independent language. The experimental results show that implementation of parallel libraries in Java is
feasible and the performance is moderately acceptable. The paper describes our experiences in implementation of BSP in pure Java.
Implementation and efficiency issues such as data transport, network communication, support thread, barrier synchronization and dynamic
class loading mechanism are discussed in detail. 相似文献
4.
用于功率放大器的阶梯记忆多项式预失真器(英文) 总被引：2，自引：0，他引：2
为了减少数字预失真系数的数量,提出了阶梯记忆多项式(SMP)预失真器.该预失真器通过改变传统记忆多项式预失真器中不同记忆深度对应的最大非线性阶数以降低系数数量.SMP预失真器系数的提取采用离线学习结构,直接通过功率放大器(PA)的输入、输出采样数据计算预失真系数.仿真结果表明了SMP预失真器的鲁棒性,它并不局限于某一特定PA模型.SMP预失真器的有效性分别在记忆多项式模型、并行Wiener模型、Wiener.Hammerstein模型、非单位延时记忆多项式模型和基于Freescale LDMOSFET MRF21030制作的实际PA上,通过仿真和实验的方式进行了验证.与传统MP预失真器相比,SMP预失真器可减少系数数量60%以上. 相似文献
5.
图书馆是和谐校园文化建设的重要组成部分,也是和谐校园文化建设的重要标志,高职院校和谐校园文化建设离不开图书馆的信息支持。因此,高职院校的图书馆要采取良好的措施,开拓创新,更好地为建设和谐校园服务。 相似文献
6.
在"TPC-H通用微机接口实验系统"的基础上,利用其J7端子的通用插座开发外接实验电路板,设计出"点阵LED显示器显示汉字"实验电路。该实验电路可在面包板上实现,实验者可根据实验原理和要求,从实验电路着手,进行面包板上的电路连接、安装,上机编程调试等操作,有助于实验者深刻理解实验原理与电路,提高动手能力。 相似文献
7.
8.
ABSTRACT In the UK, approximately 1 in 29 children have experienced the death of a parent or sibling. It is argued that schools are suitably positioned to provide support to bereaved children. However, there is a gap in research exploring bereavement support provision (BSP) in primary schools. This paper presents the qualitative phase of a mixed-methods study which aimed to gain insight into BSP in primary schools in one UK Local Authority. After completing an online questionnaire, 16 school staff took part in semi-structured interviews. The findings of this study highlighted that BSP is characterised by emotional support and other indirect responses. A key finding is that providing emotional support to a bereaved child has a negative impact on the emotional well-being of staff. This study discusses how educational psychologists (EPs) are well placed to provide whole school and targeted bereavement support to children and school staff. 相似文献
9.
10.
张华杰 《南昌教育学院学报》2010,25(5):182-182,185
在java开发环境中,没有涉及共享内存这个概念,但是在某一些应用中,＂共享内存＂确实非常有用。在java语言的分布式应用系统中,存在着大量的分布式共享对象,很多时候需要查询这些对象的状态,如果采用网络通信的方式,会增加应用的额外负担;如果采用共享内存的方式,则可以直接通过共享内存查看对象的状态数据和统计数据,减少了一些不必要的麻烦。 相似文献