Past Issues May 2010
AMD Developer Central

IN THIS ISSUE:
» AMD Hosts Xen Summit
» New Open Source Technology Zone
» Open64 Survey – Your Feedback Is Important
» Now Available: ATI Stream SDK 2.1
» OpenCL™ Optimization Case Study - Diagonal Sparse Matrix Vector Multiplication
» Java Performance when Debugging is Enabled
» Recently Added to developer.amd.com
» Upcoming Sponsored Events
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AMD Hosts Xen Summit

AMD Hosts Xen Summit
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AMD Developer Inside Track scored an exclusive interview with Ian Pratt, Chairman of Xen and Vice President of Advanced Products at Citrix. He tells us how Xen got started, where it is going and how developers can help shape virtualization. We also spoke with AMD’s Tom Woller, Principal MTS Software Engineer and Rodney Schmidt, Principal MTS Software Engineer, who discussed why it is important to have AMD engineers working directly with Xen and what new AMD virtualization features we have in our processors.

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New Open Source Technology Zone New Open Source Technology Zone

AMD has a long-standing track record of collaboration with open software development communities. Do you know which open source projects AMD has a hand in? Visit the new Open Source Technology Zone to learn about the major initiatives to which AMD contributes code.

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Open64 Survey Open64 Survey – Your Feedback Is Important

Did you download the x86 Open64 Compiler Suite?  We would appreciate a few minutes of your time to complete a short survey to help us improve the x86 Open64 compiler. Your input is valuable, and we welcome your feedback. We will share the results in our blog after the survey closes.  The survey is open now and closes on June 7, 2010.

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Now Available: ATI Stream SDK 2.1 Now Available: ATI Stream SDK 2.1

This latest update of the ATI Stream SDK brings additional performance-enhancing features, increases ease-of-programming, and expands hardware support.  New features include:

  • Support for OpenCL / OpenGL® interoperability
  • Support for OpenCL byte addressable stores
  • Support for OpenCL images
  • Integration of Stream KernelAnalyzer 1.5 installer
  • Support for next-generation ATI FirePro™ professional graphics cards
  • and more
OpenCL™ and the OpenCL™ logo are trademarks of Apple Inc. used by permission by Khronos.

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OpenCL Optimization Case Study OpenCL™ Optimization Case Study - Diagonal Sparse Matrix Vector Multiplication

OpenCL™ unlocks the performance capabilities of today's parallel processors, although, as with any other programming environment, achieving high performance requires careful attention to how the code is mapped to the hardware platform and executed.  This article discusses performance optimizations for AMD GPUs and CPUs using as a case study a simple, yet widely used computationally intensive kernel: Diagonal Sparse Matrix Vector Multiplication.  At the end of our journey, we'll have a high-performance kernel for both the AMD Radeon™ HD 5870 GPU, as well as the AMD Phenom™ II X4 965 CPU.
OpenCL™ and the OpenCL™ logo are trademarks of Apple Inc. used by permission by Khronos.

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Java Performance when Debugging is Enabled Java Performance when Debugging is Enabled

This article looks at the effect of enabling the attachment of a debugger on Java application performance, specifically examining a piece of the Java Platform Debugger Architecture called the JDWP agent. We will see how this agent may cause unexpected negative effects on performance on some Java Virtual Machines (JVMs), even when we are not actually debugging. We will then show how we applied some changes to improve the performance of the Hotspot JVM in the OpenJDK when it is started with debugging enabled but the debugger has not yet attached.

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Code Faster Recently Added to developer.amd.com

 Just released: Stream KernelAnalyzer v1.5
 Just released: ATI Stream Profiler v1.2
 Just released: GPU ShaderAnalyzer v1.54


 
 
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