Posts Tagged ‘ vsphere ’

joshsimons

Virtualized High Performance Computing in 2014

December 12, 2013
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Virtualized High Performance Computing in 2014

As we complete another circuit around the sun, it’s time again to make some predictions about what we’ll see over the course of our next orbit. Since my work in the Office of the CTO focuses on High Performance (Technical) Computing, I’ll focus there. But before looking ahead, let’s take a minute to look back and see how I did with my predictions last year . 2013 Predictions Scorecard Last year, my predictions related to public cloud, private cloud, RDMA in the cloud, virtual machine evolution, and HPC acquisitions. My biggest “miss” was also my most specific prediction — that Amazon would announce RDMA support in 2013 in order to better support latency-sensitive MPI applications. They did not,...

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joshsimons

Hadoop Performance on vSphere 5.1

April 19, 2013
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Hadoop Performance on vSphere 5.1

We’ve just published a third Hadoop performance paper, written by VMware performance expert Jeff Buell, which looks in detail at the relative performance of a bare-metal 32-node Hadoop cluster compared to a range of virtual clusters with up to 128 VMs. The executive summary is that while we saw a 13% performance degradation in a head-to-head comparison of a 32-node physical cluster against a 32-VM virtual cluster (one VM per host) running on the same hardware and running the same tests, virtualized performance can be increased significantly — to the point where virtualized Hadoop actually runs a bit faster than physical — by increasing the number of VMs per host. We’ve seen this effect before with Hadoop...

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joshsimons

2013 Predictions: When Worlds Collide

December 18, 2012
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2013 Predictions: When Worlds Collide

It’s time again to dust off the crystal ball, cast the yarrow sticks, read the tea leaves, and share some thoughts about where the IT world is heading over the next twelve months and beyond. Because my focus at VMware is on High Performance Computing (HPC), I’ll confine my prognostications primarily to the growing area of overlap between mainstream Enterprise Computing and HPC — places where each world can benefit from the other in important ways. Before I start, let’s get one no-brainer prediction out of the way: 2012 will be remembered for Nicira , and not Nibiru . Yes, software-defined networking ( SDN ) will trump planetary collisions and the...

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bhavesh

Low Latency on vSphere at VMworld 2012

September 19, 2012
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I was excited to have one of our partners, Mellanox, extend a special invitation for me to speak at their Expo booth during VMworld 2012 in San Francisco. They had allocated a 30 minute slot for a Theater Presentation and promoted my presentation via nice giveaways and postcards distributed in nearby VMworld hotels. I used this opportunity to reiterate some of the messages from the OpenFabrics Alliance Workshop in Monterey in March 2012 and to report on further progress with the Office of the CTO’s explorations into supporting RDMA at various levels in the vSphere ESXi hypervisor. In the first section of the presentation, I highlighted various use cases for RDMA...

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jacklo

Availability in a Software-Defined Datacenter

September 6, 2012
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Last week, VMware hosted one of its most exciting VMworld conferences to date. The keynotes emphasized a bold vision for the future of IT: the software-defined datacenter (SDDC) . The SDDC is the datacenter where the infrastructure, including compute, storage, and networking, has been virtualized and fully automated by software, thus enabling IT to be delivered as a service. As Steve Herrod summarized in his Day 1 keynote – the SDDC is based on the ability to abstract applications from the underlying infrastructure, pool physical resources into shared logical resources, and automate IT operations.

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joshsimons

High Performance Computing with vSphere 5.1

August 29, 2012
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High Performance Computing with vSphere 5.1

We just announced a pile of new vSphere features at VMworld 2012 in San Francisco this week so I thought I’d take a few moments to describe several of those capabilities that will be of particular interest to High Performance Computing customers.

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joshsimons

Virtualization, Italian Style

July 11, 2012
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I’m in Fiuggi, Italy this week teaching a four-lecture course on Virtualization and High Peformance Computing as part of the Eighth International Summer School on Advanced Computer Architecture for High Performance and Embedded Systems ( ACACES 2012 ). I have about 70 students in the class, primarily from European countries.

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joshsimons

The Case for IT Convergence

July 6, 2012
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I gave a talk recently at the HPC Advisory  Council Workshop at the International Supercomputing Conference ( ISC ’12) in Hamburg. The main purpose of the presentation, which was titled Ultra-low Latency in the Cloud: How low can we go?,  was to share our InfiniBand performance results with the HPC community to begin to address the question of whether cloud computing can be useful for more demanding types of applications than the throughput-oriented technical workloads that are known to run well in a virtualized cloud environment. (The short answer is we believe it can.) Before I presented our performance results, I spent the first part of the talk explaining what I see as an...

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joshsimons

Ultra-low latency in the Cloud: How low can we go?

June 13, 2012
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I’ll be speaking this weekend at the HPC Advisory Council European Conference 2012 in Hamburg, just prior to the International Supercomputing Conference ( ISC ’12 ), which runs from June 17-21st. If you will be attending either event and would like to talk about HPC and virtualization, send me an email — “simons” at the obvious place.

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joshsimons

Ultra-low latency on vSphere at VMworld 2012: Voice your Interest!

June 4, 2012
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Low-latency communication is one area we’ve been exploring within the Office of the CTO as part of our efforts to enable new workloads to run well on the platform, including High Performance Computing (HPC) applications and scale-out Enterprise applications.  If you are interested in hearing about this topic at VMworld 2012, consider casting a vote for the two proposals listed below during the public voting period, which ends on June 8th. Vote here (free registration required). 1514 Ultra-low latency on vSphere: How low can we go? Low-latency applications are becoming more important in the Enterprise datacenter and for emerging workloads like High Performance Computing. As a response to this, the Office of the CTO is exploring several options to...

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