Posted on August 29, 2014 by Dr Donald Kinghorn
The new Intel desktop Core i7 processors are out, Haswell E! We look at how the Core i7 5960X and 5930K stack up with some other processors for numerical computing with the Intel optimized MKL Linpack benchmark.
LAMMPS is a molecular dynamics program capable of running very large (billions of atom) dynamics simulations. It is modular with many contributed packages to add extra potential energy functions, atom types etc.. There was recently added a package, USER-INTEL, that adds some nice code optimizations for Intel Xeon hardware. We grabbed the latest source code and did a build with this new code and fired it up on our quad Xeon test system and got very good performance.
I'd never used a Dremel before. But I'd have to learn if I wanted a PC that stood out from all the nondescript beige boxes my friends owned. So I spent the afternoon tracing the pattern on side panel of my Lian-Li aluminum case using a stencil I'd found online. Had YouTube been around at the time, I would have searched to find a Dremel tutorial but it would be few more years before it existed.
Posted on August 5, 2014 by Dr Donald Kinghorn
OpenFOAM is a collection of programs and libraries for computational fluid dynamics, CFD, and general dynamical modelling with many solver types. It can give linear scaling and excellent parallel performance on Quad socket many-core systems. Read on to see performance on a 40-core Xeon and 48-core Opteron system.
Iíve been doing application performance testing on our quad socket systems and I am especially liking the quad Xeon box on our test bench. I realized that I havenít published any LINPACK performance numbers for this system (thatís my favorite benchmark). Iíll show the results for the Intel optimized multi-threaded binary that is included with Intel MKL and do a compile from source using OpenMPI. It turns out that both openMP threads and MPI processes give outstanding, near theoretical peak performance. Building from source hopefully shows that itís not just Intel ďmagicĒ that leads to this performance Ö although I guess it really is.
To the best of my knowledge, itís been at least six years since we've written about life behind-the-scenes here at Puget Systems. So weíre going to kick off a whole new generation of newsletters - focused more on the people and less the technology - as we dive into this summer season of 2014. I hope you enjoy this little glimpse of what working at Puget Systems is really like, day to day.
The first computer I purchased arrived at my home with two operating systems: DOS and Windows 3.1. Most full-fledged programs ran in DOS, including nearly every game in the early 1990s. Besides pool, the game I played most during my college years was called Links Golf which ran in DOS. Without Links Iím convinced my GPA would be at least a half grade higher. I offset my Links addiction by installing WordPerfect for DOS which allowed me to write reports from home instead of the schoolís computer lab
POV-ray is an open source ray tracing package with a long history. It has been a favorite system performance testing package since itís inception because of the heavy load it places on the CPU. It has had an SMP parallel implementation since the mid 2000ís and is often used as a multi-core CPU parallel performance benchmark on both Linux and Windows. So lets try it on our Quad socket many-core systems!
Posted on July 2, 2014 by Dr Donald Kinghorn
Hyper-Threading, hyperthreading, or just HT for short, has been around on Intel processors for over a decade and it still confuses people. Iím not going to do much to help with the confusion. I just want to point out an example from some testing I was doing recently with the ray-tracing application POV-ray that surprised me. Hyper-threading dramatically lowered the performance on a multi-core test system running Windows when running POV-ray in parallel.
Iím going to walk you through a basic install and configuration for a development system to do CUDA and OpenACC GPU programming. This is not a detailed howto but if you have some linux admin skills it will be a reasonable guide to get you started. Weíll do a basic NVIDIA GPU programming setup including CentOS 6.5, CUDA development environment and a PGI compiler setup with OpenACC. The most interesting part may be the OpenACC setup. OpenACC is a relatively new option for GPU programming and allows for a directive (pragma) based coding model.
We take a look at Quad Xeon and Quad Opteron performance and parallel scaling with Zemax OpticStudio including an analysis using Amdahl's Law. Based on this analysis we then make performance predictions for other processors.
Several times a year my father would score Utah Jazz tickets, and being the oldest son, meant I was the one to accompany him to Salt Lake City to watch the games at the old Salt Palace arena. I sat next to my father for the hour-long drive from our home in northern Utah and knew we were getting close when I could see the arena that looked like a large wedding cake. For the next two hours Iíd cheer on the Jazz against their rivals such as the Portland Trailblazers or the Seattle Sonics. The Jazz were my team and my loyalty knew no bounds. I wore Jazz jerseys, collected player cards, and could tell you how many assists John Stockton needed to overtake Magic Johnson as the all-time assists leader.
NVIDIA Tesla K20 plus PGI Accelerator compilers with OpenACC in a package deal with a system. Yes, it's official. If you've wanted to do some development work with OpenACC on Tesla, this is a nice way to get started with a heavily discounted K20 and PGI compiler package pre loaded on a Peak Mini.
Here's a quick look at CUDA performance on the NVIDIA Jetson Tegra K1 developer board.
Posted on May 22, 2014 by William George
There is a game in development I have been following for almost a year now, and which I am extremely excited about. For anyone who was into PC gaming back in the 90s, the genius behind the Wing Commander series of games and Freelancer has returned to the game scene, to create the Ďbest darn space simulator everí: Star Citizen. It is a very ambitious project, entirely crowd-funded, with almost $44 million raised so far from its fanbase. Because this game is being crowd funded, the development team has opened up to the gameís backers - giving information out in a consistent stream, and details that would normally only be delivered to a publisher that was funding the game. We are the publisher, in a sense, and getting to be this involved in the process of making a game is fascinating and engrossing to me.
I recently returned from Las Vegas where I attended an Intel partner event. Over the course of three days, I was able to listen to many speakers give us their predictions for the future of computing. We were presented with demos of fancy all-in-one PCs, sleek new laptops as well as beefy workstations powered by quad Xeons. If Intel was building chips for it, we saw it or heard about it.
This weekend a few of us from Puget Systems made the trip to Bellingham, WA for LinuxFest 2014. Two days of total immersion into the world of Linux and open source. Having recently made the plunge by setting up a native install of Ubuntu on my primary work machine, I thought this would be a great event to soak in the culture and goings-on of the free and open-source software (FOSS) community.
Posted on April 23, 2014 by Dr Donald Kinghorn
Need the most compute capability you can get in a single box for a well written, multithreaded application? Weíll take a look at one such application, Zemax OpticStudio14, running on a quad socket Ivy Bridge Xeon system. Performance was excellent!
The annual Northwest pilgrimage for the Linux faithful to the Bellingham Technical College in Bellingham, WA is nearly upon us! Puget Systems is donating a great machine to the raffle, a Serenity mini with a commemorative case etching!
Where is NVIDIA heading with High Performance Computing hardware? Ever since Intel announced Xeon Phi Knights Landing as a stand-alone processor integrated at the board level as a full compute unit, I've been wondering what NVIDIA would do along these lines. It just makes sense that they would do something similar since getting the GPU off of the PCIe bus and tightly integrated with plentiful system memory would be a huge step forward for usability and performance. Here's my guess about where NVIDIA is heading.
I had the pleasure of attending the NVIDIA Graphics Technology Conference ( GTC ) last week. Wonderful conference! If you have any doubts about the quality of the conference you are in luck. They have most of the content on-line, you can check it out yourself ...
Just over a year ago I wrote how Solid State Drives (SSD) were soaring in popularity. At that time we offered a number of SSD models from Intel. But due to production constraints, we were on the verge of adding a few Samsung SSDs to the mix. Around this same time we began fielding a number of requests for Samsung SSDs. Once considered a luxury item, SSDs have moved into the mainstream within the past two years. Our customers tend to be tech savvy and performance demanding to the core. So I wasn't surprised to find widescale adoption of SSDs as I dove into the sales data.
I spent yesterday attending the Seattle stop of the VMware User Group (VMUG) Conference. It was a totally worthwhile event for catching up with all that is going on in the VMware world. If you didn't already know Puget Systems has been a VMware Partner for quite some time now, we even use a number of their products to run Puget Systems.
We thought it would be fun to compare a few of the statistics gathered by Netmarketshare to those we track through Google Analytics for visitors to Puget Systems. According to Netmarketshare, they are the standard in tracking technology usage market share. They have been collecting and analysing data since 1999 and, while not without controversy, are highly regarded in their approach to ranking the most popular operating systems and web browsers.
I posted a few weeks ago regarding my move to Linux. I received some great feedback from our readers, and encouragement to continue posting about my experiences. If there is something specific about the Linux experience you would like me to discuss, feel free to email me at email@example.com. Hopefully, you will find these posts helpful. Two weeks have passed since I walked away from Windows and a couple of things have really struck me in that time.<< Older Posts