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High Performance Computing

High Performance Computing
A discussion venue for all things high performance computing (HPC), supercomputing, and the technologies that enables scientific research and discovery.
Results for __migration_HPC_at_Dell
  • 4-14-2008 - strace Friend - Comments

    strace is Your Friend strace is one of those tools that admins use on their systems to track down problems. Typically it is used to debug or troubleshoot problems in *nix operating systems. But strace is one of those tools that is multi-purpose. In this, my first blog, I'll show how you can use strace...
  • 4-21-2008 - strace MPI - Comments

    Using strace with MPI Remember - strace is your friend. In the last blog , I started talking about how to use strace to examine the I/O of applications. In that blog I introduced you to how to use strace on serial codes. In this blog, I want to expand our usage of strace to MPI codes. As we discovered...
  • 4-25-2008 - strace for Fun and Profit - Comments

    strace for Fun and Profit Introducing an strace analyzer. Also using strace to examine some ISV codes OK, I Wrote an strace Analyzer Using strace to look at the IO pattern of codes, particularly for MPI codes makes my life a lot easier. I use strace to examine the bandwidth of read and write functions...
  • 5-6-2008 - Estimating Cluster Performance - Comments

    Estimating Cluster Performance How you can estimate the Top500 performance of your cluster Quick Introduction to Performance I've been asked a few times about how to estimate the Top500 performance of a cluster. So I thought I would discuss this a little bit and also give you a spreadsheet to help...
  • 5-14-2008 Environment Modules - Comments

    Environment Modules: Scratching the Multi-MPI, Multi-Compiler Itch When people first start using clusters they tend to stick with whatever compiler and MPI library came with the cluster when it was installed. As they become more comfortable with the cluster, using the compilers, using the MPI libraries...
  • 5-27-2008 - HPCC is the Fastest Growing Sector of IT - Comments

    HPCC is Fastest Growing Sector of IT Who would have thought? HPCC is Fastest Growing Sector of IT Just a quick blog (really a note) that HPC is now recognized as the fastest growing sector of IT. This article from eWeek points out that HPC is was a $11.5 Billion per year business in 2007 and is growing...
  • 6-02-2008 - Whither Virtualization in HPCC - Comments

    Wither Virtualization in HPCC I think it’s very interesting that when a new technology comes out, people immediately assume it’s a solution for all problems. The phrase that comes to mind is, “When you have a hammer, everything looks like a nail.” In some ways, I think Virtualization...
  • 7-06-2008 - Cloud Computing and HPCC

    Cloud Computing and HPCC There has been a huge amount of buzz about Cloud Computing and how it is changing everything in the computing world. We’re seeing signs that yes indeed, the cloud is changing computing. But as I mentioned in one of my previous blogs (insert link), sometimes when a new technology...
  • 7-16-2008 - ScaleMP on Dell Servers!

    ScaleMP on Dell Servers! I’m not sure how many people have looked at ScaleMP but they provide a unique product that allows you to take distributed nodes, connect them with a network, and make them appear and function as a single SMP machine. Today, ScaleMP announced the availability of their vSMP...
  • Dell Top 500

    Dell has 16 systems listed on the November 2009 Top500 list, featuring more than 85,766 processors http://bit.ly/dOvGJ . See below for details listed from Top500.org. Rmax and Rpeak values are in TFlops. For more details about other fields, check the TOP500 description . Rank Site System Cores Rmax Rpeak...
  • HPC Overview

    Cluster Computing has revolutionized High Performance Computing (HPC). Prior to clusters, HPC was dominated by large centralized systems with names such as CDC , Cray , SGI , and IBM . All of the users shared these machines as centralized resources, reducing costs by centralizing expense resources. However...
  • HPC Cluster Nodes

    The heart and the brains of a cluster run on servers (in the HPCC world people call them nodes). In general, there are two major types of nodes: master/login nodes and compute nodes. Let’s go over the basic functions of HPCC nodes and what general options are available. Master/Login Node ...
  • HPC Cluster Networks

    One of the things that make a cluster, a cluster, is the network. It allows the nodes to send data to each other as part of a parallel application (upcoming link to article about how parallel programs work), it is the vehicle for reading and writing data, and for monitoring and controlling the cluster...
  • HPC Cluster Storage

    For many years people viewed storage as kind of an afterthought in the design of clusters. But over time as HPCC has grown and taken on an increasingly important role in companies' overall strategy, storage has become much more important and is usually designed into the cluster from the beginning...
  • HPC Cluster Software

    Software is one of the most important aspects of a cluster. The reason is that not only is the generic title “software” mean the applications but it also refers to the software that takes the separate pieces of the cluster (i.e. the nodes) and makes them work together as a single unit. It...
  • 11-24-2008 - Tiering Your Data

    In the past, I’ve talked about ways you can learn about the IO patterns of your applications. Once you know the characteristics of the IO pattern of your applications, you can start to think about how to construct your storage solution from the perspective of performance and capacity requirements...
  • 12-01-2008 - 10GigE in HPCC

    One of the common questions I see people asking is, “what about 10 Gigabit Ethernet in HPC?” I’ve been seeing lots and lots of FUD (Fear, Uncertainty, and Doubt) floating around about 10 Gigabit Ethernet (10GigE). So I decided to write this blog to start talking about 10GigE and hopefully...
  • 01-07-2009 - Things You Didn’t Know About Solid State Disks (SSD’s)

    I’m sure pretty much everyone has heard about SSDs. They are the current technology rave in storage. They have, as their name suggests, no moving parts. They use NAND for storing data, much like flash drives . What makes them so attractive is: They have no moving parts, so you can drop them without...
  • 02-18-2009 - Great Tips on SSDs

    There is a new article at PC Perspective that talks about the really hot Intel SSDs. But it goes beyond a normal review and gets into some of the guts of SSDs and talks about an important topic: file system performance as it ages. So, I want to write about the review and point out the file system aging...
  • 02-19-2009 - File System Aging – What you Don’t Know

    We all get old and as a result we slow down. What many people don’t know is that as file systems age, they get slower as well. Just as people are different, so are file systems. Some age gracefully and still perform well, while others age quickly and performance tanks very fast. This applies to...
  • HPCC Blog - The Dell TechCenter - Archive

    2008 Blogs
  • HPCC Blogs - 2008

    10GigE in HPCC One of the common questions I see people asking is, “what about 10 Gigabit Ethernet in HPC?” I’ve been seeing lots and lots of FUD (Fear, Uncertainty, and Doubt) floating around about 10 Gigabit Ethernet (10GigE). So I decided to write this blog to start talking about...
  • 04-06-2009 - Introduction to Nehalem-EP

    I think you’ve heard by now that Intel has released a new processor, the Xeon 5500 (code-named Nehalem-EP). While the consumer version of this processor has been released as the Core i7, this is server version of the processor. It is a sea change for Intel processors for a number of reasons that...
  • 04-08-2009 - Nehalem and Memory Configurations

    The Intel® Xeon® processor 5500 series architecture (code named, "Nehalem")–based systems bring a whole new level of memory bandwidth to the high-performance computing (HPC) party. But the new architecture brings with it some options that allow you to trade memory price, memory...
  • High Performance by Design

    HPC cluster design requires a deep understanding of the trade-offs between price, performance, and energy efficiency. This blog shares the results of studies conducted by Dell's HPC engineering team that can help inform your cluster design decisions. Performance of the Dell PE C6100 and C410x...