Latest Posts

Using nVidia GPGPU Compute Acceleration with ESX 6.0

As was mentioned in a previous blog post, accelerator cards are becoming increasingly common in HPC environments and so it is important that we assess the performance of such cards with ESX. Thank you very much to Na Zhang for all of her work on the following. In this post, we share the results of […]

Research and High Performance Computing at VMworld US

There will be a High Performance Computing in Research and Data Analytics Roundtable session held on Monday evening in conjunction with VMworld US in San Francisco. This session is a part of the Government & Education Roundtable Series and is intended primarily for those customers. Seating is limited and registration is required. Registration is here. […]

Using the Intel Xeon Phi Compute Accelerator with ESX 6.0

Compute accelerators  — whether they be GPUs, Intel Xeon Phi, or FPGAs — are increasingly common in HPC and so it is important that we assess the use of such technologies from within VMware vSphere® as part of our efforts to virtualize research computing and other HPC environments. Last year when I tested Intel Xeon […]

Running HPC Applications on vSphere using InfiniBand RDMA

Looking back on 2014, this was the year in which we made significant strides in assessing and addressing High Performance Computing (HPC) performance on vSphere. We’ve shown that throughput or task-parallel applications can be run  with only small or negligible performance degradations (usually well under 5%) when virtualized — a fact that the HPC community […]

High Performance Computing (HPC) Update

Our HPC effort at VMware has been very active in recent months, and we have lots of information to share– including new performance results. Rather than cramming all of that content into a single mega blog entry, I’ve decided instead to give a preview here of some of the most significant developments. I will then […]

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 […]

Virtualized High Performance Computing (HPC) at VMworld 2013

It’s been a busy few months on the HPC front here at VMware. I’ve been spending increasing amounts of time answering questions from our field people and talking with customers about the benefits of using virtualization and cloud technologies for HPC workloads. The two hottest application areas are clearly Life Sciences and Electronic Design Automation […]

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 […]

Paravirtual RDMA for Low Latency and Flexibility

The Office of the CTO has been exploring how to best enable application access to RDMA for those applications requiring the ultimate in high bandwidth, low-latency communication, which includes many HPC MPI applications as well as many scale-out databases and BigData approaches. Passthrough mode is the most straightforward way to enable guest-level RDMA. With passthrough […]

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 […]