GPGPU - Next generation of high performence computing

Over the past few years GPU (Graphics Processing Unit) becomes competitive computing hardware against the CPU (Central Processing Unit) because of its rapid increasing performance and capabilities. Recent improvements of GPU’s highly parallel programming capabilities lead to mapped wide variety of general purpose complex application with tremendous performance improvements. This attempt on GPU is also called as General Purpose Computation on Graphics Processor (GPGPU) and this feature leads GPU to the next generation of high performance computing

Despite the relatively recent introduction of General Purpose GPU hardware, various kinds of applications have begun to take the advantage of GPU. GPU’s high performance techniques proven that it can be used successfully in diverse variety of application areas such as image processing, video processing, scientific computing, bioinformatics, computer vision, neural networks, database operations etc. Because of this reason many researches are going in the direction of GPU in various application domains to find even greater applicability in future.

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How to install IBM WebSphere MQ on Ubuntu (Linux)

Following are the steps to install IBM WebSphere MQ version 8 on Ubuntu 14.04. 1) Create a user account with name "mqm" in Ubuntu. This should basically create a user called "mqm" and usergroup called "mqm" 2) Login to "mqm" user account and proceed with next steps 3) Increase the open file limit for the user "mqm" to "10240" or higher value. For this open "/etc/security/limits.conf" file and set the values as bellow. mqm hard nofile 10240 mqm soft nofile 10240 4) Increase the number of processes allowed for the user "mqm" to "4096" or higher value. For this open "/etc/security/limits.conf" file and set the values as bellow. You will need to edit this file as a sudo user. mqm hard nproc 4096 mqm soft nproc 4096 5) Install "RPM" on Ubuntu if you already don't have it. sudo apt-get install rpm 6) Download

Creating a Simple Axis Service(.aar file) and Deploy it in WSO2 Application Server

In this post I am explaining how to Create a Simple Axis Service(.aar file) and Deploy it in WSO2 Application Server using a simple sample. And also at the end I am describing how to do the same thing with creation of a Jar Service. Lets assume "sample-home" as our parent directory and inside that we can create following folder structure. With this folder structure we can include our external libraries (jar files) inside lib folder and the "services.xml" file inside "META-INF" folder. Following is the sample services.xml definition which I used with this sample creation. < service name = "HelloService" > < Description > This is a sample service to explain simple aar service </ Description > < messageReceivers > < messageReceiver mep = "http://www.w3.org/2006/01/wsdl/in-out" class = "org.apache.axis2.rpc.receivers.RPCMessageReceiver" /> </ messageReceivers > < parame

How to use Dynamic Registry Keys with WSO2 ESB Mediators

From this post I will going to briefly introduce about one of the new features provided by WSO2 ESB . Earlier WSO2 ESB supported static registry keys where users can select a key for the mediator as a static value. But from ESB 4.0.0 users can use dynamic registry keys where users can define XPath expression to evaluate the registry key in run time. For an example let's consider XSLT mediator. With earlier static registry key based method user have to define only single XSLT file for transformation. With the use of dynamic registry key, user will be able to use XPath expressions to dynamically generate the registry key, based on the message context. So with that user can have multiple XSLT files and based on the evaluated key mediator will be able to select the required XSLT file in run time. Following is a sample usage of static and dynamic registry keys and user can use both of them according to situation. Static Registry Key – define the exact path to find the xslt fil

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