VIC

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Only Cisco unifies networking and computing in a way that works for both server and network admins. We provide scale, aggregation, and manageability in a way that simplifies operations for IT. Unified Fabric provides both CapEx and OpEx benefits that help your company.

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Today, only Cisco UCS X-Series supports 100Gbps end-to-end in a modular server form factor.In UCS X-Series, all the networking components are 100 Gbps.  Deploying a 100G solution not only makes bandwidth intensive applications perform well but gives you flexibility in how that bandwidth is used.

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  Today, guest blogger Nikul Sheth, Sr. Product Manager for Cisco UCS Fabric Interconnect writes about our new 4th gen fabric. Our next evolution of Cisco UCS Fabric provides...

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One feature of the usNIC ultra-low latency Ethernet solution for the UCS Cisco VIC that we think is interesting is the fact that it is based on SR-IOV. What is SR-IOV, and why is it relevant in the HPC world? SR-IOV (Single Root I/O Virtualization) is commonly used in the server virtualization world. The most […]

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I’ve previously written a bunch about the effects of location, Location, LOCATION! on MPI applications. Here’s another subtle NUMA effect that a well-tuned MPI implementation can hide from you: intelligently distributing traffic between multiple network interfaces. Yeah, yeah, most MPI implementations have had so-called “multi-rail” support for a long time (i.e., using multiple network interfaces […]

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I have previously written a few details about our upcoming ultra low latency solution for High Performance Computing (HPC).  Since my last blog post, a few of you sent me emails asking for more technical details about it. So let’s just put it all out there.

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I’ve previously posted on “Why MPI is Good for You” (blog tag: why-mpi-is-good-for-you).  The short version is that it hides the typical application programmer from lots and lots of underlying network stuff; stuff that they really, really don’t want to be involved in. Here’s another case study… Cisco’s upcoming ultra-low latency MPI transport is implemented […]

TCP?  Who cares about TCP in HPC? More and more people, actually.  With the commoditization of HPC, lots of newbie HPC users are intimidated by special, one-off, traditional HPC types of networks and opt for the simplicity and universality of Ethernet. And it turns out that TCP doesn’t suck nearly as much as most (HPC) […]

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My team demonstrated our new ultra-low latency Ethernet solution in the Cisco booth at SC this past week (it was so busy that I didn’t get to post this until it was all over!). The short version is that we have implemented operating system bypass and NIC hardware offload via the Linux OpenFabrics verbs API […]