Monthly Archives: July 2011

Grid Computing

Grid computing (or the use of a computational grid) is applying the resources of many computers in a network to a single problem at the same time – usually to a scientific or technical problem that requires a great number of computer processing cycles or access to large amounts of data. Grid computing requires the use of software that can divide and farm out pieces of a program to as many as several thousand computers. Grid computing can be thought of as distributed and large-scale cluster computing and as a form of network-distributed parallel processing. It can be confined to the network of computer workstations within a corporation or it can be a public collaboration (in which case it is also sometimes known as a form of peer-to-peer computing).

Grid computing appears to be a promising trend for three reasons: (1) its ability to make more cost-effective use of a given amount of computer resources, (2) as a way to solve problems that can’t be approached without an enormous amount of computing power, and (3) because it suggests that the resources of many computers can be cooperatively and perhaps synergistically harnessed and managed as a collaboration toward a common objective. In some grid computing systems, the computers may collaborate rather than being directed by one managing computer. One likely area for the use of grid computing will be pervasive computing applications – those in which computers pervade our environment without our necessary awareness.

A number of corporations, professional groups, university consortium’s, and other groups have developed or are developing frameworks and software for managing grid computing projects. The European Community (EU) is sponsoring a project for a grid for high-energy physics, earth observation, and biology applications. In the United States, the National Technology Grid is prototyping a computational grid for infrastructure and an access grid for people. Sun Microsystems offers Grid Engine software. Described as a distributed resource management (DRM) tool, Grid Engine allows engineers at companies like Sony and Synopsis to pool the computer cycles on up to 80 workstations at a time. (At this scale, grid computing can be seen as a more extreme case of load balancing.)

source: http://en.wikipedia.org/wiki/Grid_computing

Basic Linux Commands

Let’s get introduced to the basic linux commands.

1. If you want to type something, for example “hi” in the terminal.

echo hi  // this command will print “hi”

2. ls         // This command lists all the directories and files.

You can type ls -all so as to print all the hidden files and directories too. Hidden file name starts with a .(dot).

3. To create a text file “text”, with .txt extention, type

vim text.text or gedit text.txt

Save the file.

4. Now, type ls and text.txt appears in your dir/file list.

5. You can copy and move this file “text.txt” using the following commands.

cp text.txt Desktop    // to copy

mv text.txt Desktop  // to move

6. To change the directory from pwd(present working directory) to other(Desktop) , type

cd Desktop

7.  ls-> text.txt appears in Desktop

8. To make a directory “hello”, type

mkdir hello

cd hello // to change directory

rmdir hello //to remove directory( empty).

To remove directory with non empty files, type- rm -r directory

9. Choose a directory. For example Desktop.

cd Desktop

dh -H

This command gives you the details about free space available

10. Type ps //This command gives you the current running process.

Guru Poornima

I remember kabir’s doha which I had learnt in my childhood,

Guru Govind Dono Khade kake lagun paya
Balihari Guru aapne, Govind diyon batay

My guru and God are in front of me
To whom do I bow down and touch feet?

I give my life to my guru
It’s he who showed me GOD.

GU- darkness

RU-light

The one who guides us from darkness to light is GURU. A Guru understands you much better than anyone else in the world.  Guru knows your positives and negatives. Guru helps you in inculcating positive qualities and supressing the negative ones. A Guru can be your parents, teacher, a spiritual leader, or any person who constantly helps you in all your activities and giving you strength and courage to identify GOD.

The full moon day in the Hindu month of Ashad (July-August) is observed as the auspicious day of Guru Purnima(July 15, 2011) , a day sacred to the memory of the great sage Vyasa. All Hindus are indebted to this ancient saint who edited the four Vedas, wrote the 18 Puranas, the Mahabharata and the Srimad Bhagavata. Vyasa even taught Dattatreya, who is regarded as the Guru of Gurus.

Significance of Guru Purnima
On this day, all spiritual aspirants and devotees worship Vyasa in honor of his divine personage and all disciples perform a ‘puja’ of their respective spiritual preceptor or ‘Gurudevs’.

This day is of deep significance to the farmers, for it heralds the setting in of the much-needed rains, as the advent of cool showers usher in fresh life in the fields. It is a good time to begin your spiritual lessons. Traditionally, spiritual seekers commence to intensify their spiritual ‘sadhana’ from this day.

The period ‘Chaturmas’ (“four months”) begins from this day. In the past, wandering spiritual masters and their disciples used to settle down at a place to study and discourse on the Brahma Sutras composed by Vyasa, and engage themselves in Vedantic discussions.

Let’s pray to our Gurus on this day seeking blessings from them!

Gururbrahma Gururvishnur Gururdevo Mahesvarah,
Guruh Sakshat Parambrahma Tasmai Shri Gurave Namah.

source : http://hinduism.about.com/od/festivalsholidays/a/gurupurnima.htm

“We’re The World (USA For Africa)”

MICHAEL JACKSON LYRICS

Read each line slowly.

 

There comes a time when we hear a certain call
When the world must come together as one
There are people dying
and it’s time to lend a hand to life
There greatest gift of all

We can’t go on pretending day by day
That someone, somewhere will soon make a change
We are all a part of God’s great big family
And the truth, you know,
Love is all we need

We are the world, we are the children
We are the ones who make a brighter day
So let’s start giving
There’s a choice we’re making
We’re saving our own lives
it’s true we’ll make a better day
Just you and me

Send them your heart so they’ll know that someone cares
And their lives will be stronger and free
As God has shown us by turning stones to bread
So we all must lend a helping hand

When you’re down and out, there seems no hope at all
But if you just believe there’s no way we can fall
Let us realize that a change can only come
When we stand together as one

 

“Help ever, Hurt never”

source:  http://www.azlyrics.com/lyrics/michaeljackson/weretheworldusaforafrica.html

Aura

Have you observed a golden glow,  luminous radiation that we normally see around deities and human beings? It is Aura. We all have an aura, including animals and inanimate objects. It is like a hazy bubble of light surrounding a body. Aura is the indicator of personality, health and spiritual growth.

The concept of aura is not easy to define or explain. The dictionary definition of the word is given as, “any subtle, invisible emanation or exhalation.”   It is an energy field with the object both living and non living. Aura is also referred to as ‘the magnetic atmosphere’ or ‘psychic atmosphere’ of an individual. A human body emits these energies in varying densities. Electromagnetic waves around a healthy body form an oval shape spreading to around 2 to 3 feet in all directions. These waves originate from a center point termed as ‘auric egg’ and extending above the head and below the feet the waves are present varying in density.

The color of every individual is doubtless somewhat different, and with the same individual it differs at various times, according to his state of health, the mental and psychical changes, etc. The majority of highly developed clairvoyants agree that the following colors may be distinguished, and that they signify the existing physical, mental and spiritual conditions, as follows:

VARIOUS SHADES OF BLACK: indicates hatred and malice; anger and hate thought-forms are like heavy smoke.

RED: deep red flashes on black ground show anger : lurid red indicates sensuality.

BROWN : dull brown-red shows avarice ; dull, hard brown-grey selfishness; GREENISH BROWN: with red or scarlet flashes, denotes jealousy.

GREY: heavy leaden shows deep depression ; livid grey shows fear. CRIMSON : indicates love.

ORANGE : pride or ambition.

YELLOW: shows intellectuality; duller tints show it is used for selfish purposes.

GREEN: deep blue green shows good qualities, deep sympathy, while grey-green shows deceit and cunning.

BLUE: dark, indicates religious feeling; light blue shows devotion to a noble spiritual ideal.

WHITE: or near white, shows high spirituality.

DULL BROWN:  and blue show selfish religious feeling; dull yellow, low type intellect;

APRICOT:  shows pride;

BRICK RED:  indicates selfish affection and avarice.

LIGHT and BRIGHT RED:  show pure affection.

GREYISH- GREEN:  with reddish tinge, shows deceit.

Aura is perceptible, detectable. It may be detected spontaneously. It can also be detected by putting in much practice. You can train your eyes to see your own aura as well as aura of others. To some extent we all can sense a subtle presence in the personality of others and respond with feelings of like and dislike. Children and even infants are considered susceptible to this subtle presence around a person.

For more facts-   http://hubpages.com/hub/The-Human-Aura-and-How-to-Study-it

Haptics

Growth in the touchscreen market has accelerated adoption of haptics in mobile phones. Through world-class partners such as Samsung, LG, Nokia and others, haptic technology is moving from a nice-to-have consideration to a fundamental design requirement for next-generation mobile devices. We live in an increasingly touchscreen world and our haptics bring these screens to life.

 “HAPTICS”– a technology that adds the sense of touch to virtual environment. Haptic interfaces allow the user to feel as well as to see virtual objects on a computer, and so we can give an illusion of touching surfaces, shaping virtual clay or moving objects around.

The sensation of touch is the brain’s most effective learning mechanism –more effective than seeing or hearing—which is why the new technology holds so much promise as a teaching tool.

Haptic technology is like exploring the virtual world with a stick. If you push the stick into a virtual balloon push back .The computer communicates sensations through a haptic interface –a stick, scalpel, racket or pen that is connected to a force-exerting motors.

 

With this technology we can now sit down at a computer terminal and touch objects that exist only in the “mind” of the computer. By using special input/output devices (joysticks, data gloves, or other devices), users can receive feedback from computer applications in the form of felt sensations in the hand or other parts of the body.

In combination with a visual display, haptics technology can be used to train people for tasks requiring hand-eye coordination, such as surgery and space ship maneuvers.

To know more about haptics, visit-

http://www.downloadppts.com/2009/12/haptic-technology-paper-presentation.html

Value the relation

We have used a  lot of books, lot of pens, lot of dresses, lot of mobiles etc. What did we do ? We used it and threw it out. “Use & Throw”

Really sad of the fact that the idea of use and throw is extended even to relationships nowadays. Rising number of people in old age homes is a proof  for this matter.

Parents also have to be blamed. They go to office leaving their child with the servant. Child grows with the servant. They could hardly spent their childhood with their parents. Parents will have an answer that it’s for the better future of their child. But imagine your childhood without parents’ care. It’s miserable. Many children in the world is in this situation now.

Alright  the child somehow grows up and he is in his 20’s now. What will he do? He will be busy in planning for his future. He will never take care of parents. Parents could hardly see their child. Imagine old age times with no one to care! It’s again miserable.

So the conclusion is that, Newton was absolutely right! “Every action has equal and opposite reaction” :).

Probably we feel there is no solution. But the only solution that we have is to spend some time. Speak with your parents for at least half an hour a day.  Let them feel your presence at least through your sound. 

Staying alone is not easy. Remember,  loneliness when lasts for long time can eventually kill a person.