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.
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.
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.
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 firstname.lastname@example.org. 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.
Windows 8 has been out for about a year and a half now, and it is common knowledge that Microsoft's newest operating system has received mixed reactions. The new start screen (I still have to stop myself from calling it Metro!) is a jolting departure from the user interface that Windows users have been accustomed to using since 1995. One unique thing we do here at Puget Systems, is we reach out to nearly all of our customers after they have had a chance to use their new PC. We ask them how it is working for them, and what we could have done better. We learn a LOT. So, what do our customers have to say about Windows 8, and what is Puget Systems doing to respond?
By now, most folks have seen Appleís updated Mac Pro - or as I like to call it, the trash can. I kid, I kid! In all seriousness, though, we are often asked how our workstations - like the Genesis line - compare to the hardware Apple has put in the new, miniature Mac Pro. Read on to find out...
This weekend I did something I never thought I would do: I moved away from Windows. I ran Windows 7 on a Traverse laptop since I came to work here almost 18 months ago, and personally since I was a kid, starting with Win 3.1x. After all that time amd experience I can't take it anymore. I have jumped ship and I am not coming back. This weekend I wiped my Windows install and loaded Ubuntu 12.04 LTS onto my primary drive. Physically, installing the new OS was easy; only after installing the OS did I realize there was a psychological effect I had not really counted on.
I recently attended an industry event with speakers representing a number of the largest technology companies in the world. An executive from Lenovo kicked off the event with a presentation that explained how their future was dependent on how well they could sell smartphones. I donít doubt his sincerity because a few weeks later Google off-loaded their Motorola handset business to Lenovo for a few billion and pocket change. Not long after this event Lenovo purchased IBMís server business to take on Dell and HP which have expressed varying degrees of interest selling PCs over the past few years. Depending on the week, HP is either ďall inĒ on smartphones or leaving them behind to focus on something new and exciting. Itís getting nearly impossible to say who is selling what anymore. Many of the traditional PC companies appear to be selling everything except PCs! Which brings me to the point of this post: Focus is difficult.
At Puget Systems, we build extremely high end PCs each and every day. Some of our PCs are used as high powered workstations, where they are pushed to their limits every hour of every day. Others might be the expensive play-things for those of whom price is no object. Is there a such thing as a PC that is TOO high end?
The time has come. The time is now. And with apologies to Marvin K. Mooney, itís time to consider running Windows 8 on your desktop or laptop computer. Although thereís no shortage of opinion surrounding Microsoft's latest operating system, Windows 8 remains somewhat of an enigma. Iíve spoken to people who have told me the following: 1. Windows 8 is for touchscreens only. 2. Windows 8 is worthless for desktop users. 3. Microsoft is forcing a tablet OS on us. 4. Windows 8 is nothing more than Windows 7 with spiffy skin.
A few months ago, I packed up my family and left the lush, green, and often damp area of Seattle for the warmth and sun of southern Utah. I still work for Puget Systems, but have moved into a different role where I spend my days gathering insight from customers on how we can continue to improve our products and service.
This is going to be an unusual blog post, because I'm going to try and talk you out of one of our most impressive (and expensive) products. This isn't the sort of thing you'd normally see on a commercial website, but I guess we're not your normal commercial blog either. Today I'm going to try and convince you that you don't need a fully liquid cooled system.<< Older Posts