The pace of IT and data is moving exponentially. With a rapidly growing networks across all industries, keeping track of all these connection points will give rise to a new business leader: The Chief Information Officer, or CIO.
Why will a CIO be such a crucial part of future business? Read More »
Tags: Chief Information Officer, CIO, infographic, internet, network
MPI implementations are large, complex beasts. By definition, they span many different layers ranging from the user-level implementation all the way down to sending 1s and 0s across a physical network medium.
However, not all MPI implementations actually “own” the code at every level. Consider: a TCP-based MPI implementation only “owns” the user-level middleware. It cannot see or change anything in the TCP stack (or below). Such an implementation is limited to optimizations at the user space level.
That being said, there certainly are many optimizations possible at the user level. In fact, user space is probably where the largest number of optimizations are typically possible. Indeed, nothing can save your MPI_BCAST performance if you’re using a lousy broadcast algorithm.
However, lower-layer optimizations are just as important, and can deliver many things that simply cannot be effected from user space.
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Tags: hardware, HPC, mpi, network, software
Guest Post by Contributing Author Ken Presti
Everybody is looking for ways to increase efficiency and trim expenses nowadays. Your company’s channel partner is no exception.
With that objective in mind, most partners have adopted a support model through which they remotely access computers and other devices on your network when those devices need service, or in some cases merely threatening to need service. Doing it this way eliminates the need for trained personnel to climb into a truck, sit at numerous red lights, spill their coffee, and then repeat the process in the opposite direction after fixing whatever part of your IT infrastructure was green-about-the-gills.
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Tags: network, partners, remote management
I’ve been working on a future-oriented economic growth program with the US Conference of Mayors and we have identified Chattanooga as a location to demonstrate some of these ideas because it has, by far, the largest and fastest deployment of fiber in any metro area in the US — enabling every home and other building to have a gigabit connection.
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Tags: #economic growth, Chattanooga, economic development, fiber, gigabit, mayors, network
This week I’m happy to continue our customer guest-blog series with Blake Krone, CCNA Wireless, CCNP Wireless, and CCIE Wireless candidate. You can read more from Blake on his blog, Digital Lifestyle or connect with him via Twitter @blakekrone. Read on for a Cisco Live perspective from a true wireless professional.
Recently 14,000+ technology geeks invaded Las Vegas for Cisco Live! 2011 at Mandalay Bay Convention Center. For me this was my 4th year in a row attending Cisco Live! and the 2nd in a row at Vegas. If you have never attended a Cisco Live! event in person I strongly suggest that you try to budget for it next time around. Not only is this the best week to jump head first into all areas of Cisco’s product portfolio but it is also an opportunity to see how the products can come together to provide connectivity for devices and people.
For every Cisco Live! event that is held Cisco builds their own network to support the conference attendees, sponsors, and speakers. This gives Cisco the opportunity to get a large set of data points regarding their products performance in abusive conditions. Lately we have seen or heard about the BYOD (bring your own device) phenomenon that is sweeping across the enterprise network and there is no better place to see that than a large IT conference.
One can safely assume that for all the 14,000+ in attendance each person will have at least 1 Wi-Fi connected device. Now let’s assume that a large chunk of those in attendance are like me and also have their laptop and a tablet with them, that’s a lot of connected devices to support! Whenever I talk with customers about wireless deployments the first thing I will say when we get to the point of turning on a network is that the client will cause the best wireless network to fail. We always push to make sure that the latest drivers are applied to the devices going to be used to ensure proper roaming and performance. But how do you manage that when you have no control over the devices being used? In the future we’ll use tools like Cisco NCS and ISE, for now we just hope it works!
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Tags: byod, facetime, iPad, iphone, mobile devices, network, networking, security, wi-fi, wifi, wireless, wireless LAN, wireless network, wlan