Sponsored Links

 

 

 

MPJExpressMeets Gadget: Towardsa Java Code for Cosmological ...

Source: www.mpj-express.org
Topic: Java Programming


Short Desciption:
... quality Ccodewitha Java code that could potentially be optimized further. The performance of Java Gadget-2 reinforces our belief that Java is a viable option for HPC. With careful programming, it is ...

 

Content Inside:
MPJExpressMeets Gadget: Towardsa Java Code for Cosmological Simulations Mark Baker1, Bryan Carpenter2 and Aamir Shafi3 1 ACET, University of Reading 2 OMII, University of Southampton 3 DSG, University of Portsmouth Abstract. Gadget-2 is a massively parallel structure formation code for cosmological simulations. In this paper, we presenta Java version of Gadget-2. We evaluated the performance of the Java version by running a colliding galaxy simulation and found that it can achieve around 70% ofC Gadget-2sperformance. 1 Introduction Various computer scientists have argued that Java could make an excellent language for developing scientific codes. To date this argument has not con- vincedtoomany practising computational scientists. The scarcity of high-profile number-crunching codes implemented in Java does not help the case. We have recently released MPJ Express[1], a thread-safe, production quality Java messaging system for high performance computing. To help establish the practicality of real scientific computing using message passing Java we have ported the parallel cosmological simulation code, Gadget-2, from Cto Java, using MPJExpress. Gadget-2[7]isamassively parallel structure formation code developed by Volker Springelatthe Max Planck Institute of Astrophysics. Versions of Gadget-2 have been used in various research papers in astrophysics literature, including the noteworthy"Millennium Simulation"[8]—the largest ever model of the Universe. Producing a Java version of Gadget is an experiment that helps us to un- derstandwhere Java stands in comparison to C—an already established HPC language. Concerns about Javasperformancehave stopped many computational scientists from seriously considering it. But constant improvements in JIT (Just In Time) compilers, which translatebytecode into the native machine code at runtime, have improved thecompuational performance. Exploitation of Java for simulation pr ...

 

add to Google Reader add to Google Bookmark add to bloglines add to newsgator add to FURL add to digg add to webnews add to Netscape add to Yahoo MyWeb add to spurl.net add to diigo Bookmark newsvine Bookmark del.icio.us Bookmark @ SIMPIFY Bookmark MISTER WONG Bookmark Linkarena Bookmark icio.de Bookmark oneview Bookmark folkd.com Bookmark yigg.de Bookmark reddit Bookmark StumbleUpon Bookmark Slashdot Bookmark blinklist Bookmark technorati add to blogmarks add to blinkbits add to ma.gnolia add to smarking.com add to netvouz add to co.mments add to Connotea add to de.lirio.us

 

Related PDF Files

Java Programming and Information hiding principle


Topic: Java Programming

Introduction to Java Programming. 3. Structure of Object. oriented program .... Introduction to Java Programming. 7. Lets execute a Java program. Compile ...

Java Programming For Kids


Topic: Java Programming

Chapter 3. Pet and Fish - Java Classes J ava programs consist of classes that represent objects from the real world. Even though people may have different preferences as to how to write programs, most ...

XML and Java Application Development


Topic: Java Programming

... Building XML on the fly • Outputting a document using an XMLOutputter Gain extensive experience using Java to create and process XML documents. Use Java to build a working prototype of an application that ...

Introduction to Graphics Programming with Java 3D


Topic: Java Programming

Introduction to Graphics Programming with Java 3D Lecturers Doug Twilleager doug.twilleager@eng.sun.com Sun Microsystems, Inc. Tutorial notes sections Abstract Preface Lecturer information Using the ...

Java Programming: A Comprehensive Hands-On Introduction


Topic: Java Programming

Java Programming: A Comprehensive Hands-On Introduction - 4 Days Course 471 Overview You Will Learn How To •Write, compile and execute Java programs •Build robust applications using Javas object ...

 

Sponsored Links