搜索结果: 31-45 共查到“计算机处理器技术”相关记录348条 . 查询时间(1.513 秒)
中国科学院上海应用物理研究所研制成功数字化束流信号处理器并实现批量应用（图）
数字化束流信号处理器 处理器 光源储存环 采集处理
2016/12/24
中国科学院上海应用物理研究所经过多年研制测试，相继完成国内首套数字化束流信号处理器的原理样机、工艺样机开发，现已实现批量化生产及应用，在上海光源（SSRF）、上海软X射线自由电子激光（SXFEL）装置、大连相干光源（DCLS）装置等三个大型加速器上投入在线运行，共有近八十台。该处理器实验室测试信噪比达到80dB，束流单次通过测试相对位置分辨率好于千分之一。在上海光源储存环上完成的束流实验结果表明，...
中国首款面向云计算的服务器问世
中国 云计算 服务器
2016/7/8
记者2016年7月7日从中科曙光获悉，在国家高科技计划“863”课题支持下，这家公司联合国内外知名高校、研究院所、芯片和半导体器件制造巨头，研制出中国首款面向云计算的新一代服务器——星河SDC1000，可以有效地面对“亿”级用户同时在线并访问的情况，解决了传统服务器体系结构与云应用负载不再匹配的问题。
世界首款千核CPU在美国问世
千核CPU 美国
2016/6/22
美国加州大学戴维斯分校的科学家研制出一款包含1000个核心的中央处理器（CPU）。这块处理器包含6.21亿个晶体管，每秒可完成1.78万亿次运算，被认为是迄今核心数量最多的CPU。负责这项研究的加州大学戴维斯分校电子和计算机学工程教授贝文·巴斯教授称，这块CPU取名KiloCore，是世界上首个千核处理器芯片，也是目前由大学研制的时钟频率最高的处理器。虽然此前也有很多团队制造出各种多核心处理器，但...
中国首款嵌入式神经网络处理器诞生（图）
中国 嵌入式 神经网络处理器
2016/6/21
在北京市海淀区一座十余层高大厦的一间展厅内，一台电脑屏幕上显示着大厦入口来往车辆的信息。“如果有违规情况，摄像头就能够在第一时间识别出来，并将相关车辆信息实时报告给监督者。”张韵东介绍说。赋予摄像头这一识别及判断能力的载体仅是一块长宽约两厘米的正方形银色芯片。2016年6月20日，张韵东所在的中星微 “数字多媒体芯片技术”国家重点实验室举行新闻发布会称，其发明的中国首款嵌入式神经网络处理器（NPU...
Realm: An Event-Based Low-Level Runtime for Distributed Memory Architectures
Realm Legion distributed memory deferred execution events reservations heterogeneous architectures runtime
2016/5/24
We present Realm, an event-based runtime system for heterogeneous,distributed memory machines. Realm is fully asynchronous: all runtime actions are non-blocking. Realm supports spawning computations, ...
Professor David H. Albonesi,Department of Computer Science at Cornell University（图）
Department of Computer Science at Cornell University Professor adaptive and reconfigurable multi-core and processor architectures
2016/1/25
David H. Albonesi joined the Computer Systems Laboratory in 2004 after serving on the faculty of the University of Rochester. His current research interests include adaptive and reconfigurable multi-c...
科学家成功利用金纳米粒子团执行运算
科学家 金纳米粒子团 执行运算
2015/9/23
一项日前发表于《自然—纳米技术》杂志的研究发现，金纳米粒子的随意“搭配”能执行通常为整齐排列的硅而保留的运算。传统计算机依赖于遵循预先所设置规则的有序电路，但这一策略限制了它们的效率。“目前你在商店买到的最好的微处理器每秒能执行1011次运算，并且会利用几百瓦电力。”来自荷兰特温特大学的Wilfred van der Wiel表示，“人脑能执行更高数量级的运算，并且只使用10～20瓦电力。这是一个...
Temperature-aware processor frequency assignment for MPSoCs using convex optimization
Temperature-aware thermal MPSoCs convex optimization
2015/8/10
The increasing processing capability of Multi-Processor Systems-on-Chips (MPSoCs) is leading to an increase in chip power dissipation, which in turn leads to significant increase in chip temperature. ...
Processor speed control with thermal constraints
Computer processors chips processors processor power function
2015/8/7
We consider the problem of adjusting speeds of multiple computer processors sharing the same thermal environment, such as a chip or multi-chip package. We assume that the speed of processor (and assoc...
A Method for Fast Revocation of Public Key Certificates and Security Capabilities
Public Key Certificate Security Capabilities
2015/8/5
We present a new approach to fast certificate revocation centered around the concept of an on-line semi-trusted mediator (SEM). The use of a SEM in conjunction with a simple threshold variant of the R...
We describe a short signature scheme which is existentially unforgeable under a chosen message attack without using random oracles. The security of our scheme depends on a new complexity assumption we...
Timing attacks are usually used to attack weak computing devices such as smartcards. We show that timing attacks apply to general software systems. Specifically, we devise a timing attack against Open...
We study the strength of certain obfuscation techniques used to protect software from reverse engineering and tampering. We show that some common obfuscation methods can be defeated using a fault inje...
We construct a fully collusion resistant tracing traitors system with sublinear size ciphertexts and constant size private keys. More precisely, let N be the total number of users. Our system generate...
Strongly Unforgeable Signatures Based on Computational Diffie-Hellman
Computational Diffie-Hellman Unforgeable Signatures
2015/8/5
A signature system is said to be strongly unforgeable if the signature is existentially unforgeable and, given signatures on some message M, the adversary cannot produce a new signature on M. Strongly...