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In 1989, he became the first man on earth to perform the world's fastest computer computation - a staggering 3.1 billion calculations per second. That surpassed even the theoretical peak speed of the more expensive supercomputers costing between $10m and $30m apiece then in use in the US.

Emeagwali's achievement also helped solve one of America's '20 Grand Challenges', that is, understanding how oil flows underground so that companies could extract the most of the "black gold."

Emeagwali's breakthrough won him the prestigious Gordon Bell Prize in the US. Though worth only $1,000 in cash and awarded by the American Institute for Electrical and Electronics Engineers, the Gordon Bell is considered to be the Nobel Prize of the computing world.

pure genius
Emeagwali captured it while making mincemeat of the previous winners' efforts. His 3.1 billion calculations per second was twice the speed achieved by the 1988 winner and 24 times faster than the 1987 winner. And what's more - he was the first solo winner of the award. Usually, teams from corporations and national laboratories capture the $1,000 cheque. But Emeagwali, a 'novice' by American computing standards at the time he started his project, spent only eight months on a relatively new type of computer - the Connection Machine - before clinching the award.

The Nigerian embassy in Washington milked the applause:

"By this great accomplishment," Dr. Hamzat Ahmadu, the then Nigerian ambassador in Washington wrote to Philip, "you have shown the world that, contrary to many negative press reports that tend to portray the generality of Nigerians in bad light particularly in the USA, Nigerians are capable of achieving greatness and do indeed excel in many fields. I hope that other Nigerians both within and outside your community will emulate you and set similar high standards of excellence."

This is what Nigerians at home call "reaping where you've not sown." For, Emeagwali achieved his greatness without any help from the Nigerian government.

At age 14, young Philip dropped out of school in Onitsha where he grew up because his father, James, a nurse, could not pay his school fees. Philip, an Ibo born in Akure, Ondo State, was the first of his father's nine children. The Nigerian government, despite all the oil money, did not help the poor boy to continue his education.

But before he dropped out of school, Philip had shown a clear head for mathematics. His father James was so encouraged that he continued to teach him Mathematics in the evenings. Philip was such a mathematical genius that his mates soon nicknamed him 'Calculus'. Even his father, the evening teacher, could not keep up with him. "He gave up because he said I knew more than he did," Philip explained by e-correspondence.

Having dropped out of school, Philip made the public library his second home where, through library books, he taught himself college-level Mathematics, Physics, Chemistry and English. He studied hard and passed his London GCE, with ease.

the american dream
Luck smiled on him when he was 17. He won a scholarship to the Oregon State University in the US where he majored in Mathematics. He had arrived in Oregon wide-eyed in 1974, not knowing what the future held for him. But he has since earned four other degrees - a Ph.D. in Scientific Computing from the University of Michigan; two masters degrees from the George Washington University, one in Ocean and Marine Engineering and the other in Civil and Environmental Engineering. He has another master's degree in Applied Mathematics from the University of Maryland.

His working life has seen him in Maryland and Wyoming as a civil engineer, and as a computer scientist at the US National Weather Service for which he wrote a thesis on mathematical calculations used in forecasting floods. He also worked at the US Army High Performance Computing Research Centre in Minneapolis from 1991 to 1993.

He has since won several awards including the Scientist of the Year Award 1991, given by the National Society of Black Engineers in the US, "in recognition of his outstanding contribution to the scientific field which benefitted all mankind"; the Computer Scientist of the Year Award 1993, given by the National Technical Association; and the Pioneer of the Year Award 1996, again given by the National Society of Black Engineers.

greatest achievement
But Emeagwali's greatest achievement to date is his 1989 breakthrough in making scientists better understand how oil flows underground. The project was for his doctoral dissertation. Instead of using one supercomputer, which cost $30m a pop and uses eight high-powered processors, the Nigerian resorted to the Internet to access 65,536 smaller computers each working in parallel on a small part of the problem.

"The result was phenomenal, a computer that performed computations more than three times faster than a supercomputer", wrote Marsha Lakes Matyas for the American Association for the Advancement of Science.

Emeagwali was ecstatic: "I like to work on problems that are important to society because you get satisfaction," he told New African. "Research is hard work, so you might as well work on important research". He tells how he did it.

the connection machine
"The connection machine had only been developed in 1986, three years before my breakthrough, and it had a poor reputation. People were skeptical about the machine and denigrated it because, typically, researchers needed a year to learn how to use it and its software was scarce.

"I was one of the first persons crazy enough to try it. I'm more confident in pursuing ideas that are not very well accepted. It has something to do with my personality. If everyone goes east, I go west, so I will be the first to find the solution." But not many believed in what he was doing.

"To be really honest, I thought he was getting caught between the cracks," confessed Trevor Mudge, Director of the Advanced Computer Architecture Laboratory at the University of Michigan where Emeagwali studied.

But the Nigerian knew what he was doing. He linked up 65,536 processors - each comparable to a desktop computer - via the Internet to the Connection Machine. He figured that more points would provide better results.

He says: "Just picture the conventional supercomputer, costing $30m each, as eight oxen pulling a cart and the Connection Machine as about 65,000 chickens pulling the same cart.

"The old thinking is that the oxen will do a better job, but if the chickens coordinate their efforts, they'll do a better job than the oxen. That's what my 65,536 small computers achieved 3.1 billion calculations per second. The supercomputer was nowhere in sight with all its $30m purchase price."

grand solution
The United States government has a list of the 20 most difficult problems in science and engineering called the '20 Grand Challenges' one of which is petroleum reservoir simulation. Emeagwali wanted to crack this.

He explains: "Oil is usually found underground, trapped in rocks. Until my experiment, engineers were able to recover only about 10% of the oil in any reservoir by using supercomputers to simulate oil fields and track the oil flow. I chose this problem because in this field, in order to have the most impact, you have to work on the most serious problems." Coming from Nigeria, he knew that an oil field was not just a huge underground cave.

"Oil is found in pores within rocks, and oil companies must pump gas or water into fields to force the oil to nearby wells. But if the oil is sucked out too quickly at one well, then oil elsewhere may not flow naturally to the same well and is virtually trapped. The company must then drill another well at considerable expense to extract the trapped oil. The money involved is staggering. That's why I set myself to understand the flow within oil fields and how many barrels can be removed at any one well".

To help him overcome the problem, Emeagwali looked elsewhere. He knew that in the early 1930s, the German mathematician, Paul Fillunger had formulated a theory on partial differential equations.

But Fillunger was not 'successful'. A sceptical panel of experts publicly announced in March 1937 that the German had failed to solve the equations. Fillunger felt so humiliated that he and his wife committed suicide. After their deaths, the Russian mathematician, B.K Risenkampf seized on Fillunger's idea, but he too was only able to partially solve the equations. But Philip Emeagwali showed in 1989 that Fillunger's original equations were correct, about 60 years after.

He modified Fillunger's equations on his computer and then divided the simulated oil field into eight million points, assigning 128 points to each of the 65,536 processors linked to the Connection Machine.

He had written his programme to instruct each point in the 65,536-chain to talk with six neighbours simultaneously. The results were phenomenal!

universal breakthrough
If he were Archimedes, the great Greek mathematician, he would have run out of his bath shouting, 'Eureka, eureka'- 'I've found it, I've found it'.

But Emeagwali is a Nigerian. When the Connection Machine popped up the results, his eyes went wild! He screamed and punched the air. He had achieved 3.1 billion calculations per second! And not only that: His calculations had determined the amount of oil in the simulated oil field, its direction of flow and speed at each point.

For the entire oil field, (all eight million points), his calculations had taken one-sixth of a second, which mimicked a few hours of actual oil flow. A Nigerian who dropped out of school at age 14 had solved one of America's '20 Grand Challenges' -!

"When he told me the results, I thought he had made a mistake," says William Martin, Director of the University of Michigan's Laboratory for Scientific Computation where Emeagwali spent 13 hours a day for eight months working on the project.

It was enough to win him the Gordon Bell Prize.

Said the Gordon Bell Committee: "The amount of money at stake is staggering. For example, you can typically expect to recover 10% of a field's oil. If you can improve your production schedule to get just 1% more oil, you will increase your yield by $400m (at $20 per barrel in a 20-billion-barrel field)".

Emeagwali's breakthrough made this possible. It changed the view of a skeptical petroleum industry that massively parallel computers could be used to recover more oil. Today, seven years on, 10% of all massively parallel computers are purchased by the oil industry alone. And the speed of Emeagwali's calculations is helping the OPEC nations to extract more oil and increase their oil revenue.

Since the breakthrough, Emeagwali has gone from strength to strength. In March last year, he was adjudged the Pioneer of the Year by the National Society of Black Engineers in the US. The award was presented to him at a ceremony in Nashville, Tennessee, attended by 6,000 international scientists and engineers. It is the most prestigious recognition bestowed by the Society on individuals whose "intellectual contributions have benefitted all mankind."

Emeagwali was cited for his "discoveries and inventions that led to the acceptance of massively parallel computing technology, and in particular their use in the petroleum industry to recover more oil." The award greatly pleased Emeagwali as he got it ahead of other eminent scientists and engineers like the US-based Ghanaian, Dr. Thomas Mensah who is currently leading the design of advanced laser-guided weapons (also known as 'Smart Weapons') such as the US Patriot missiles which became famous during the Gulf War.

Dr. Mensah holds seven patents in fiber optics - three in Fiber optics guided missile technology, and four in manufacturing fiber optics inexpensively, which experts say, will impact hugely on the use of fax machines, electronic banking and other communications gadgetry.

Despite the fame, Philip Emeagwali is not resting on his oars. Last April, he presented an 819-page description of a revolutionary hyperball computer to the US Office of Patents and Trademarks. His new computer will enable scientists to better understand the long-term effects of greenhouse gases and global warming.

yet another invention
Emeagwali's new revolutionary hyperball computer network was based on the theory of tessellated models. Each red dot represents a processor and each red line represents the path used in sending and receiving information between the processors. He based the new computer on the "theory of tessellated models" which he formulated himself. This theory demonstrates that tessellation (sphere packing) and fast parallel computations are related fields.

Parallel computers in use today are based on the hypercube or hypertree networks, which do not map efficiently over the Earth's surface. Emeagwali's hyperball is different. The complex geometry and patterns he observed in nature - the arrangements of molecules in crystals and the structure of bee's honeycombs inspired it.

His invention divides the Earth's atmosphere into sections that simulate a bee's honeycomb. Bees, he says, use the most efficient method to construct their honeycombs, so a computer network which emulated the honeycomb will be more efficient and powerful in forecasting the world's weather patterns a century or more ahead of time. "At the moment, there is no computer that can do this. My hyperball will make this possible," he says.

Married to an African-American microbiologist, Dale Brown, who has borne him a seven-year old son, Emeagwali is enjoying his days in St. Paul, Minnesota. He is an Internet freak and his personal Website (http://emeagwali.com) is so hot that it is accessed by 800 people a day from all over the world.

from emeagwali, with regards
Dear THISDAY Style,

Thank you for visiting my Website http://emeagwali.com and for taking the time to write and invite me to share my life and work with the readers of THISDAY.

I have heard positive things about your publication and therefore will be happy to collaborate with you in producing a comprehensive story that your readers will love. Your readers may be interested in more in-depth and comprehensive articles with plenty of photographs from my Web site. I will also be happy to conduct an e-mail interview.

Thank you once again for the invitation to share my experiences with THISDAY, and I look forward to working with you and your staff.

Regards,

Philip Emeagwali