Blog-grid

Literate Programming

2008-04-27T09:52:00.001-07:00

Work with evolving technologies computer related such as: operating systems, computer networks, language programming; they demand a continuous practice for avoiding forget the learned lessons.

For example, if you learned how to

configure a router
backup your server remotely
process a XML file in your program

if you don't practice, you'll loose your skills after while.
If you think that you'll be apart from your task, it's highly recommended that you document your tasks and your software programs and as much as possible provide your sources, they will save your day shortly.

In a recent interview with Donald Knuth I found something interesting. For programming languages, he has something to say. He proposes something called programming literate. It deals with different aspects related with the software development process. It provides guidelines for software documentation, design documentation, agile documentation, and source comments.

I can assure you, a well written document is as important as the product that accompanies it.

SWIG extending your possibilities

2008-04-25T14:07:00.001-07:00

Hi,

I'm a Java fan, and lately, I'm a Groovy lover. However, it's well known there are limitations in high-level languages such as Java and scripting languages, Groovy for example, when dealing with low level issues. Some people say "C is a high abstraction of the assembler code". In fact, one step during compilation of C programs is to translate them in assembly code (gcc -S <your_program>.c)
As consequence, the Java developers have developed JNI (Java Native Interface) framework. It allows the interaction between Java and C code. However, to develop JNI components can be a daunting task.

SWIG is a software development tool connecting C and C++ components with scripting languages such as: Perl, PHP, Python, Tcl and Ruby. Besides, it supports interaction with non-scripting languages such as: C#, Common Lisp, Java, Lua, Modula-3, OCAML, Octave and R. Impressive ah!

Take care, and happy weekend!

Science 2.0

2008-04-22T14:30:00.001-07:00

Years ago, Web 2.0, arrived our computers exposing different mechanisms of interaction for the web users.
Likewise, Web 1.0 was developed by a physics researcher, Web 2.0 is been used and developed for people from different areas of knowledge.
Now, Web 2.0 is been used for the users to display different situations of your life but also the researchers are using it as a mechanism for supporting the development process of knowledge.
The Wiki framework is one of the most successful mechanisms for sharing knowledge as much as informal and formal way.

Today, researchers are advocated to open their knowledge to the world, of they will be condemned to the failure and isolation.

Scientific American has an interesting article about this topic (http://www.sciam.com/article.cfm?id=science-2-point-0&print=true).

Compiling fftw2 in IA64

2008-03-20T11:38:00.001-07:00

Compile and Install FFTW2 on IA64 architecture was a painfulness experience. However, the problems happen when you're trying to link your MPI programs with the fftw lib.

I got the next error:

/home/jas/fftw2/lib/libfftw.a(rader.o)(.text+0x23e2): In function `fftw_create_rader??unw':
: undefined reference to `__libm_sincos'
/home/jas/fftw2/lib/libfftw.a(twiddle.o)(.text+0x9d2): In function `fftw_create_twiddle':
: undefined reference to `__libm_sincos'
/home/jas/fftw2/lib/libfftw.a(twiddle.o)(.text+0x11c2): In function `fftw_create_twiddle':
: undefined reference to `__libm_sincos'
/home/jas/fftw2/lib/libfftw.a(twiddle.o)(.text+0x1a22): In function `fftw_create_twiddle':
: undefined reference to `__libm_sincos'

You can solve it, adding the next strings to your compilation line:

-L/opt/intel/cc/9.1/lib
-limf

Now, it works ;-)

Regards.

PD: An useful program for reviewing the content of a static library is nm.

Google Code University

2008-03-19T19:05:00.001-07:00

Daily, previous to start my work, I read the following web pages:

Of course, I read them for being informed about different issues of my reality, I mean: my country, my friends, and news related with different topics such as: technology, literature, education, among others.
I have to confess, that I'm not digg RSS lover, but today I read it quickly and found this interesting link http://code.google.com/edu/.

It contains relevant information about hot topics in computers, such as: AJAX, Distributed Systems, Web Security, and Languages.

As a matter of fact, I will review the Distributed Systems area because it's interesting to know what they have to say about this topic.

Regards,

Compiling Octave on IA64

2008-03-18T11:31:00.001-07:00

My research work involves signal processing analysis. A lot of work in signal processing is done with Matlab. However, there is not free license of Matlab for Linux. Hence, I use Octave. Octave is a Matlab clone for free and open source. Many of the non-advanced scripts developed for Matlab works under Octave. For example: scripts for handling images and sounds, work pretty well in Octave.

However, in order to run Octave on IA64 architecture a little modification must be done. The configure script does a good job for x86 architecture but not so good for IA64. During the compilation procedure I got this error:

unresolved reference to `?1__serial_memmove'

I solved the problem modifying the Makeconf file located in the root directory of the source code. Then, look for the line that contains the FLIBS variable and add the following strings:

-L/opt/intel/cc/9.1.046/lib
-lirc

My resulting line was:

FLIBS = -L/opt/intel/cc/9.1.046/lib -L/usr/lib/gcc/ia64-redhat-linux/3.4.5 -L/usr/lib/gcc/ia64-redhat-linux/3.4.5/../../.. -lz -lfrtbegin -lg2c -lirc -lm

The ?1__serial_memmove definition is given in the libirc.[so|a] library, and it's located at /opt/intel/cc/9.1.046/lib directory.

Some data:
uname -a: Linux volatile.ece.uprm.edu 2.6.9-42.0.3.EL #1 SMP Mon Oct 9 16:02:20 EEST 2006 ia64 ia64 ia64 GNU/Linux
icc --version: icc (ICC) 9.1 20070111

Resources:

http://softwarecommunity.intel.com/isn/Community/en-US/forums/thread/321963.aspx

Compiz and Gnome on Compaq R3000 laptop

2008-03-14T14:28:00.001-07:00

In my last trip to Raleigh (NC), I bought a laptop battery for my old Compaq Presario R3000. I'm very happy because now I can stand for many hours unplugged from the grid.
Also, I had upgraded my laptop memory to 1 Gbyte. Certainly, the applications run more smoothly.

Because, I'm Linux user, my operating system has a modest hardware requirements.

Many people say that software is the computer soul. Now, I agree totally. My hardware laptop has been empowered with Compiz. In order to work with Compiz, my NVIDIA(NV17 GeForce4 420 Go 32M) video card requires the NVIDIA-Linux-x86-96.43.05-pkg1.run package, that you can download from Unix area at NVIDIA site.

Today, Linux has a lot of applications that make of it a futuristic operating system. Compiz and Beryl along with the windows managers, Gnome and KDE, make the Linux user experience, one very enjoyable.

I feel like my laptop (3.5 years old) takes a new breath and I'm happy with it.

Delay start of applications in gnome.

2008-03-14T06:46:00.001-07:00

Hi,

Today, I perceived my gnome applications have a long delay start. A wiki google reveal me the problem.
My hostname, in the /etc/hosts file, was not associated with 127.0.0.1 address. I add the following line:

127.0.0.1 pdclab-09.ece.uprm.edu pdclab-09

and the problem was resolved.

References:

https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/12852 as a matter of fact my problem happened in a FC7 machine.

Extending your new battery life

2008-03-09T18:02:00.001-07:00

I have an old Compaq Laptop (R3000) and it still works well, however, after three years of "hard" work (remember, I'm PhD student) its battery discharges quickly. My laptop fulfills my requirements at this time, so I decided to buy a new battery.
Despite of the new battery has one year of warranty I decided try to preserve its durability. Then, I google for pages providing tips how to extend the battery life. There are a lot of urban myths about it and many times they advises don't distinguish amongst the existing battery technologies.
Finally, I found this interesting link. That article was written by a senior systems engineer and consultant at Dell and a technical marketing manager at HP.
As conclusion, I can say:

Stop dispensable programs and services, avoid fancy features in your computer such as: high resolution screen, number of colors, among others; defragment your hard disk periodically for optimal disk access.
For a new battery, charge it at 100%, then discharge it totally, finally charge it at 100%. Since, Lion-ion batteries have a microprocessor, this routine help them to determine its charge capacity.

Anyway, use your battery with no care, take advantage of the warranty, then, one year later, you will decide, a new battery or a new laptop? ;-)

Latinamerican, Talk in english publicly

2008-03-07T09:19:00.001-08:00

Finally, I have came back to home with a lot of positive experiences in my OSG All Hands Consortium participation.
There, I had opportunity to meet interesting people with different background of knowledge.
The organizers invited me to participate in a session panel on March 5th.
The panel was developed as follows: every panelist has ten minute for presentation and three minutes for questions. We were six panelists in total.
My presentation was the third. I talked about my experience in Grid School at Brownsville, Texas in 2006, the personal benefits of participate there, advantages and disadvantages, and finally, I talked about my current work in PRAGMA, advantages and disadvantages of work with PRAGMA.

As conclusion of my participation, I realized in order to be understood for your audience, it's necessary have a good and large vocabulary and don't be concern so much about your grammar level.
For example, Anglo speakers, when they start speaking Spanish, have difficulties conjugating verbs, however, we can understand them with a little effort when they say something like that: "Mi tener un negro carro".
So, I'm sure that it's important know about grammar, specially when you write, however don't be shy at time to speak in public, the Anglo be nice with you and they recognize your effort.

However, it's a good idea write a script of your presentation. This backup make you more confident.

OSG All Hands Consortium

2008-03-03T04:39:00.001-08:00

Today, I will go to North Carolina to participate in the OSG All Hands Consortium Meeting. This event will be held on the Campus of the University of North Carolina.
The main goal of the event is to discuss and promote grid technologies amongst existing and new users.
On Wednesday March 3rd, in the afternoon, I will participate in a panel, where the panelists will discuss their experience with OSG.
I hope they aren't disappointed since I working with PRAGMA. However, I have expectations to work with documentation for disseminating Grid technologies in the research community in the future.

I'll write soon. Regards!

An useful graphical hardware tool

2008-03-03T04:10:00.001-08:00

Hi,
I was reading some entries in my google reader account and I found an interesting tool for visualizing your hardware information through a graphical interface.
I found this tool in the Fedora RSS.
For Fedora users, submit the command yum install lswh-gui. Enjoy it!

Greedy Web Applications

2008-02-21T12:29:00.001-08:00

I was very confused about what would be the main topic of this entry.
At the beginning, I was amazed about this awesome demo developed by Adobe company. It shows a "live" transmission of a cycling race stage. It displays a well orchestrated set of web services integrating GIS, AJAX and multimedia technologies.

Today, we can found an impressive amount of web applications as useful as standalone applications, but they have serious performance problems.
I have mentioned how the browser now is our new productivity environment and I can enumerate a
popular set of "web applications" such as: gmail, youtube, google reader, scribe, zotero, among others; but they provoke an important performance decrease in my laptop.

At this moment, there are a respected number of computers with a low profile performance, further, the industry are producing them with high succeed, hence it's convenient consider seriously to develop profiling tools for environments where the web application are developed.

Patch your Fedora Distribution

2008-02-19T16:16:00.001-08:00

Today, a friend of mine, alert me about an exploit found in most of the Linux kernels.
Promptly, I went to http://google.com and look for "kernel exploit linux". I found this in http://slashdot.org,
The announcement suggests that systems based on Ubuntu and Debian are vulnerable, but my FC7 distribution is vulnerable, too.
However, 30 minutes ago, I updated my kernel, using "Software Updater" from the Gnome menu, and the problem was fixed.

So, lets update your software.

Tools for Writers

2008-02-11T10:28:00.001-08:00

The last year ends with a profound desire to becoming me in a great writer.
Undoubtedly, it's a challenge and different knowledge areas demand educated people that expresses his ideas in a clear and concise way.

Two key elements leverage the development of the new writer, I thought.

An indomitable personality and passion for sharing his ideas through written word.
A suitable set of writing tools.

Shortly, I will speak about the second item.

Thirty years ago, maybe, the typewriter machine was the suitable tool for a writer.
Twenty years ago, the desktop computer leverage the writing process to another level, saving paper and letting a process writing more iterative.
Today, powerful advances in web technologies bring us browsers as the almighty tools. As consequence, all the things that you as a geek can be accomplished from your web browser: read e-mail, read news, watch videos, listen music, chat, make a phone calls, among others.

My prefered browser is Firefox. It's an open source browser with a large add-ons base that brings the navigation process to next level.
So, as follow I will mention a couple of these add-ons:

Zotero: It's a free, easy-to-use extension to help you collect, manage, and cite your research sources. Certainly, it's a powerful tool for the researcher. It will be hilarious when has support for PDF documents, too.
Scribefire: It supports the blog publishing process to your favorite blog site from your web browser.
Split Browser: You can split browser infinitely, as many as your RAM and your screen allow. It's a useful tool for editing over multiple-sites on a single screenshot.

Next time, don't underestimate what your browser can does for you.

Regards,

2007-11-13T18:21:00.000-08:00

Pandora an amazing DJ

Years ago, I started to listen on-line music at music yahoo.
I have to confess, at beginning, was a painful task trying to conduct the programming provided by the "Yahoo's DJ".
However, as the time past, I felt more comfortable with the music played.
Just one BIG problem, Music Yahoo only works with IExplorer and I'm a Linux user.

Ok, I can live with that, live without music in my head during my work hours. :-(
But a ride the lighting shine over my head.
I try again Pandora and now I feel happy with the music that it provides me. :-D
Sure, the beginning was awful, but it's worth.

Enjoy it.

Web 2.0 and Grid

2007-09-02T15:03:00.000-07:00

Certainly, Web 2.0 is here, likewise, Grid computing is out there.

Today, most of the Internet users have used some Web 2.0 application, due to her interaction with some popular web sites such as: google.com, gmail.com, youtube.com, flickr.com, myspace.com, facebook.com, del.icio.us, digg.com. These sites deal with either user communication or look up information, hidding to end user its complexity operation.

Every day, more Internet users have access to more information and more powerful tools to mine the new Internet. This user is not just a consumer, instead a prosumer (producer and consumer). Then, she demands a powerful and scalable computational infrastructure to carry out the tasks, in a near future, become a daily tasks such as: determine investment targets, forecast the weather for planning your next vacation, resolve complex mathematical models for her research at chemestry class, and so on.

The goal must be: keep closing the gap between access to complex computational infrastructures and non-geek user in order to do her daily task.

Then, "ask not what internet can do for you - ask what you can do for internet", next big web application is waiting for be developed.

Screencasting in Linux

2007-07-10T10:59:00.000-07:00

Screencasting, according to wikipedia, stand for record computer screen output, often containing a narration. Then, screencasting can be used for many different and useful purposes. In particular, people working with computer systems can share their expertise with anothers posting video-howtos about, almost, any thing to deal with computers.

Now, many open source and free applications are available in order to do screencasting for the Linux platform.

Today, i want to mention two complementary tools to support the screencasting process in Linux. The first is xvidcap. It can be found in the ATrpms repository. You only need execute the command, yum install xvidcap. It allows you define a rectangular section of your screen, then you can record all the things to happen there.

When you end to recording, probably you need editing the video generated. Then, I recommend to use Kino. Kino, is a basic tool for edit videos and as easy to install as execute yum install Kino. If you are familiar with vi editor you will find many key sequence use for edit text in vi, works for edit video in Kino, for example: "x" key allows you delete a character in vi, similarly, when you are editing a video with Kino, "x" key allows you to delete a frame. Very funny and wonderful for us, the vi users. :-D.

USEFUL LINKS

ATrpms
Screencast
Tools A complete article to describe different tools for screencast in Linux.
ScreenKast is a new project under screencast category. Automatically, it allows upload videos and publish them on internet.
Istanbul is an advanced video editing tool, however, demands a lot of hardware requirements.

2007-07-07T12:46:00.000-07:00

I'm user of Fedora Core Linux distribution, release 6, although at this moment release 7 is available.

Fedora as every major Linux distribution due to licensing issues cannot distribute in its official repositories (Fedora Base and Fedora Extra) software to playback MP3 or DVD files. However, there exist alternative repositories such as:

Some packages are incompatible between them, e.g. you can get compatibility problems if install livna and freshrpms at same time.

Recently, i'm interested in work with to do video tutorials for grid tasks and found that freshrpms repository fulfit my needs.

Useful Links

How to clone a XEN VM

2007-07-03T12:38:00.000-07:00

Hi,

today, I will describe what is the manual process to clone a virtual machine (VM) using XEN technology. (Fedora Core 6 (FC6) is the distribution installed in the server.)

Ok, assume I want to clone the VM "os_template". The information related to this VM reside in the file "os_template" located in the "/var/lib/xen/images" directory. Be sure, the VM "os_template" is shut off. Then, make a copy of the os_template file:

dd if=/var/lib/xen/images/os_template of=/var/lib/xen/images/os_copy bs=4k

Now, extract the VM configuration:

virsh dumpxml os_template > os_template.xml

this is the os_template.xml's content:


<domain type='xen'>
<name>os_template</name>
<uuid>3ca12152be4195b1fa67a0e857b9723d</uuid>
<bootloader>/usr/bin/pygrub</bootloader>
<currentMemory>262144</currentMemory>
<memory>262144</memory>
<vcpu>1</vcpu>
<on_poweroff>destroy</on_poweroff>
<on_reboot>destroy</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/var/lib/xen/images/os_template.disk'/>
<target dev='xvda'/>
</disk>
<interface type='bridge'>
<mac address='00:16:3e:65:82:48'/>
</interface>
<console/>
</devices>
</domain>

now, modify next fields: name, uuid, source (file attribute), mac (address attribute). Save the modifications. I'll assume that the name given to your VM will be os_copy. Then, execute this commands:

virsh define os_template.xml
virsh start os_copy

The job is done!

Some relevant urls:

Topico Caliente, Deployment en Caliente...

2007-05-27T13:07:00.000-07:00

Since midst of 2006, articles has been written about new axis version, named Axis2. Many new features has been announced such as: improved performance, better memory management, among others, but i want to remark one of them, hot deployment.

The hot deployment open opportunities to develop new interesting projects and topics such as migration and service replication.

A lot of interesting articles and tutorials about Axis2 can be found in http://ibm.com/developerworks, go to section SOA and Web Services and search for "Axis2".

Enjoy it!

various...

2007-05-05T13:30:00.000-07:00

I hope that everyone be okay.

Day by day is amazing how clever people take advantage of the features availables in internet. WEB 2.0 aims to be a social network, where people can share tastes, hobbies, among others common interest. Such manner, successful pages like del.icio.us, flickr, digg.com, youtube has been developed for specific purposes in mind share links of interest, pictures, news, videos and so on. Today, RedHat did an announcement launching the Mugshot page. Mugshot's aim is "an open project to create live social experiences around entertainment." Mugshot intends become a convergence point of exising WEB 2.0 sites, such manner in one place you can track all modifications done by a friend, for example you can see the new videos she uploaded to youtube, or new referenced pages in del.icio.us.

Finally, workplaces and education institutions has imposed mechanisms and policies to avoid access to ilegal sharing files. Such manner, many of us has found restricted to use popular p2p programs in our work or university. However, an interesting page g2p.org using the enormous Google capacity for crawl the web, provides link to directories that contain copies of e-books, songs, albums, and so on.

What will be the next great idea? think about it!

Groovy...

2007-03-25T15:46:00.000-07:00

Groovy looks as another scripting language. But it takes advantage of to be a son of Java.

Nobody denies about the fact of the large set of java libraries available to internet: networking, processing management, distributed systems, virtualization and so on.

Scripting languages help to speed up the prototyping development, for example: ruby, python, perl, among others. Groovy is a scripting language that takes the best of two worlds: huge set of libraries and increase expressiveness of the Java language. Its first stable release to january 2007, asides count with an excellent companion book Groovy in Action becomes a Groovy an excellent prototyping tool.

Java programmers will found it very useful because allows easy lists handle, asides closure concept presents to Groovy as sophisticated java based tool, furthermore smart XML interaction, database connectivity, file management, and so forth.

Since Java(95) born, never a project exciting me so much as Groovy did. Remember, "Standing on the shoulders of giants". Groovy stands on Java giant, your project stands on Groovy?

Grid computing is a great idea, but a lot of work needs to be done in order to approach to scientific community from diverse branches of knowledge.

Tools and your creativity will approximate grid to most people.

Groovy homepage All you need to start to play with Groovy.
Groovy in Action (Amazon)
Groovy in Action (Manning publications) with sample chapters, furthermore book's samples source code.

New features in GRAM4

2007-02-21T11:47:00.000-08:00

Recently, an article about new features in GRAM4(aka WS-GRAM) has been published in www.globus.org.

Among new features is worthwhile mention:

Improvements in fault tolerance support.
Has been increased the number of active jobs.
Has been adopted JSDL as job description language.
A new enhanced delegation scheme.
and more... (read the article)

Preliminaries tests shown a poor performance related to GRAM2(aka pre Web Services GRAM), however, efforts to address that issue are in progress.

Interesting links...

2007-02-20T06:07:00.000-08:00

I want to share with you about a couple interesting links for grid manager and programmer.

GDTE plugin
Eclipse is a popular IDE, whose its main feature is the possibility to integrate easily new functionality inside it, through plugins. For grid services development GDTE is widely accepted in grid community.

You need download eclipse and then install GDTE plugin.
Besides, a set of small tutorials for diverse features available in the plugin.

Link for the "Newbie"

Globus Toolkit(GT) is the Grid concept implementation most widely adopted. However, the installation process could be painful because GT consist of a lot of components to need be configure. Globusconsortium has posted a tutorial to install a lot of that components in order to provide a basic grid infrastructure.

Another successful grid history

2007-02-17T14:05:00.000-08:00

An interesting article was posted to computerworld. It describes how grid concept was used to compute drug compounds related to malaria. In six months of "grid processing", with around of 5000 computational nodes, 420 years worth of data was process in just four months.

RedHat supporting Virtualization

2007-02-13T13:13:00.000-08:00

RedHat has been supporting developments on virtualization. Actually, www.openvirtualization.com, is a site supported by RedHat and inside of it you can find a lot of interesting resources related to virtualization under open technologies.

enjoy it!

Grid and Virtualization

2007-02-10T13:50:00.000-08:00

The main subject of discussion is about grid computing, but remarkable topics to be discussed here are:

Provisioning
Adaptivity
Virtualization
Orchestration

Grid computing aims to provide an infrastructure to gather logically a set of distributed resources in a transparent way to end user. All infrastructure is built on top of non-proprietary and widely accepted protocols.

Important achievements to provide that basic infrastructure has been made, however, distributed environments involves new challenges to be considered.

An important challenge is to build autonomic environments and preliminary developments related to the items enumerate above require be made.

Then, that blog periodically will publish relevant information about it.

regards.

Grid today...

2006-11-24T07:02:00.000-08:00

hi,

This week i read the article posted by gcn with interesting remarks about the strength and weakness related to state of the art of grid computing.

Here, i will summarize the key points on that article and give some final remarks.

The article not intend to be an attack to grid technology, but give important sights about what expectations remain in technological community.

Grid computing, according to the article, is a succeed technology, that has a lot of investments and research. Today, there exist research projects such as SURAgrid Coastal Ocean Observing and Prediction, Globus Medicus; to shown the real possibilities with grid technology.

Globus Toolkit, is the piece of software most widely deployed on grid environments, however looks immature in critical issues such as the installation and management. The installation process is manual and many steps of the procedure is painful.

About, Globus Toolkit the article says: “It is still in its infancy. Automated job submission and resource allocation across a set of machines is still a difficult thing to do,”

Today, there exist software and hardware infrastructure to support the grid technologies, but a long road still remain to cross in order to achieve the Foster and Kesselman's dream.

We envision using idle computational resources, perhaps using new software with grid technology in mind, besides legacy software, we expect to run on the grid platform, too. Licensing problem is an issue in last scenario, because, commercial software is licensed either by user or by machine, therefore, run a commercial software on thousands of cpu machines could be no possible.

Another drawback, is lack of grid support. Globus today is living a similar experience like to Linux were live early in 90s, where only geeks charmed to newcomer technology are the support available at this moment.

However a big difference exist between Linux and Globus. Linux is a technology related to operating systems, concepts are widely studied on computer career, but distribute computing many times is not a core topic of study. Therefore, although there exist many people interested in distributed computing, there exist many technological flavors to deal with that kind of problem. Proprietary, open source, free of licensing among others, populate the internet, but, grid computing begin to gain momentum, and emerges like the most popular distributed technology.

The industry has been doing investment on academy to favor the developments on grid computing. Huge companies as HP, Sun, IBM and Microsoft bid for the new hype of the technology, many times with their own proprietary tools.

You can see Globus Toolkit as the Linux of the grid computing. Many of us, will be testers and will provide ideas, another people around are the engine to keep moving the Globus development.

I hope that this big dream become true, not only with proprietary deployments of Grid Computing, but Open Grid Computing available to do development of the future applications such as games, communication tools, development tools, databases, and so forth.

Finally, i do a couple of questions: Is the grid computing the born of a new paradigm to computation? What new theories has to be developed to support ideas, now applied to grid computing, ideas related to performance, fault-tolerance, adaptivity, uncertainty, and orchestration?

Open discussion

2006-11-22T05:46:00.000-08:00

Hi,

my name is John. This is my first entry in my blog grid computing related.

Late at 90s, the grid computing emerges as another vision of our computational future. Although, mid of 90s, Sun talks about: "The network is the computer", their vision differs with relation to grid vision. Grid envision a high computational power based in a huge amount of computational resources tie by hardware and software infrastructure.

Today, there exist a suitable hardware resources but lacks of software tools to let easy integration of them. Globus is the most widely known tool on grid environments, however, still is on development.

I'm interest in to open a discussion about the grid. What is the strength, weakness of this new way to envision the computation?

Periodically, i will posting references to articles, interviews, and papers and adding my own comments about it.

I want that this blog become in a place where you can to provide constructive comments towards to generate proposals to enhance the state of the art of grid computing.