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MPICH2 provides a platform for parallel and distributed processing of large data under existing hardware and software architectures. This article will describe how to build a high-performance distributed parallel computing environment based on MPICH2 in Linux systems. MPI (Message passing Interface) is a messaging standard developed by the MPI Committee, which defines a series of programming interfaces for interprocess communication in a distributed environment, currently with MPI-1 and MPI-2 two versions. MPICH2 ...

In the past few years, the innovative development of the open source world has elevated the productivity of Java™ developers to one level. Free tools, frameworks and solutions make up for once-scarce vacancies. The Apache CouchDB, which some people think is a WEB 2.0 database, is very promising. It's not difficult to master CouchDB, it's as simple as using a Web browser. This issue of Java open ...

What is OpenWrt? It is a Linux distribution that applies to routers. Like other Linux distributions, it also has built-in package management tools that you can install directly from a single software repository.   OpenWrt can be used in all the places where embedded Linux is needed, it has many functions, such as SSH server, VPN, traffic shaping service, even BitTorrent client. OpenWrt is not for everyone. Most people are satisfied with their own router's own firmware, but many advanced users ...

One of the features of cloud computing is the ability to move applications from one processor environment to another. This feature requires a target operating system to receive it before moving the application. Wouldn't it be nice if you could automate the installation of a new operating system? A well-known feature of the intel™ architecture system is the ability to install Linux automatically. However, installing Linux automatically is a tricky issue for System P or IBM power BAE using the hardware management console. This article discusses the solution of ...

How to filter the user communication, secure and effective data forwarding? How to prevent illegal users and ensure the application of network security? How to carry out safety network management, find out the security of illegal users, illegal acts and remote management information in time? Here we summarize 6 recent switch market in some popular security features, I hope to help. L2-L4 Layer Filter Now most of the new switches can be established by the rules of the way to achieve a variety of filtering requirements. There are two modes of rule setting, one is Mac mode, which can be effectively based on the source Mac or the purpose mac ...

A few weeks ago, I published a blog about Windows Azure cloud services. I'm digging up new things and experimenting with mac,pc and Linux (I prefer Ubuntu). As a fan of PowerShell and command lines for a long time, I've been looking for ways to handle transactions in text mode, as well as the creation and deployment of script sites. There was a whole bunch of ways to access Azure using the command line-more than I thought. There is a JSON based Web API that will let those workers ...

End-to-end encryption policies must take into account everything from input to output and storage. Encryption technology is divided into five categories: file-level or folder-level encryption, volume or partition encryption, media-level encryption, field-level encryption and communication content encryption. They can be defined further by the encryption key storage mechanism. Let's take a look at the grim forecast: According to the US Privacy information exchange, One-third of the U.S. people will encounter the loss or leakage of personally identifiable information from companies that store data electronically this year. Whether that number is not exactly right, anyway the public knows the data leaks ...

Absrtact: The router used to be a behind-the-scenes hero working silently, because of its characteristics of the home network hub, slowly being put on the smart hat, by the big Internet big guy in the internet thinking of the transformation, pushed to the screen before, become the spotlight under the new darling, the router was a silent work behind the hero, Because of its characteristic of home network hub, slowly being put on the smart hat, by the big Internet in the internet thinking of the transformation, pushed to the screen before, become the new darling under the spotlight, with smart home vision and innovation, intelligent routing to affect every ...

The router used to be a behind-the-scenes hero who worked silently, because of its characteristics of the home network hub, slowly being put on the smart hat, by the big Internet big guy in the internet thinking of the transformation, pushed to the screen before, become the spotlight under the new darling, with smart home vision and innovation, 　　Intelligent routing attempts to influence every Internet participant, struggling to brush out the sense of being. We are surrounded by the freshest news every day, so the internet giant will be in the smart route this flag spread chips, so far announced the production of intelligent routing products of the internet giants countless, Lenovo ...

CrossFTP is a powerful and convenient multi-label ftphttp://www.aliyun.com/zixun/aggregation/5218.html "> Client software. Using similar resource manager interface design, like FLASHFXP and cuteftp users must not be missed. 　　It also comes with a CROSSFTP server network startup that helps you build professional-level FTP systems. CROSSFTP's main functions are:--excellent ...