Untuk membuat supercomputer yang tidak jauh dari yang
dipunyai Amerika dan Jepang, tidak cukup dengan satu
dua orang brilliant tanpa semangat kebangsaan yang
tinggi. Kalau India dibolehkan membeli Cray
supercomputer yang memang dapat digunakan dual-purpose
(sipil dan militer), agaknya India akan terus
bergantung pada Amerika.  Seperti diketahui,
supercomputer adalah strategis untuk keperlua negara
modern: dia dengan akurat dapat menghitung arah rudal
dean mensimulasi percobaan senjata nuklir, dan
fisikawan di CERN lab  mustahil bekerja tanpa
supercomputer.  Untung India tidak menanggapi
penolakan itu secara konfrontatif, tapi segera
mementuk C-DAC (Centre for Developing Advanced
Computers).  Hanya dalam tempo 3 tahun, yaitu pada
tahun 1991, Dr. Vijay Batra dengan teamnya dapat
merampungkan Param 8000, yang ditingkatkan
kemampuannya dengan Param 10000 pada tahun 1993. 
Param generasi mutakhir (2003) kemampuannya 1000 kali
lipat dari Param 8000.

Salam,
RM

--------


 Vol:22 Iss:01 URL:
http://www.flonnet.com/fl2201/stories/20050114002909500.htm

--------------------------------------------------------------------------------



SPECIAL FEATURE: C-DAC -- HIGH-TECH ROAD TO
DEVELOPMENT

Target: Teraflops 

ANAND PARTHASARATHY 

Among the supercomputing initiatives launched in
India, C-DAC's Param sees techno-commercial fruition
even as it puts India in the global `teraflop' club.  






 
The C-DAC Knowledge Park in Bangalore, which houses
the Terascale Supercomputing Facility. 

The Centre for Development of Advanced Computing
(C-DAC) was established in March 1988 as a scientific
society of the Department of Information Technology
(formerly Department of Electronics) of the Union
Ministry of Communications and Information Technology
(formerly Ministry of IT). Primarily a research and
development institution involved in the design,
development and deployment of advanced IT-based
solutions, the two thrust areas for its first decade
were supercomputing and Indian language computing.
Over the years, C-DAC has diversified its activities
to address the requirements in various areas -
financial and capital market simulation and modelling,
network and Internet software, health care, real-time
systems, e-governance, data warehousing, artificial
intelligence and natural language processing. In
February 2003, the government announced the merger of
the Electronics Research and Development Centre, India
(ER&DCI), the National Centre for Software Technology
(NCST), and the Centre for Electronics Design and
Technology, India (CEDTI), Mohali, with C-DAC. The
restructured C-DAC was expected to offer economies of
scale and avoid duplication of work. 

In effect, the enlarged C-DAC has become a major R&D
player, with an asset base of around Rs.220 crores and
a staff strength that has more than doubled to 1,600.
Its revenue is expected to be around Rs.100 crores: A
feature of C-DAC, right from its inception, has been
the entrepreneurial and techno-commercial thrust given
to all its work, as a result of which it usually
generated at least half of what the government spent
on it. 

Some inevitable overlap in responsibilities have
largely been adjusted and two years after the `merger'
(which was effected from December 2002), "C-DAC Mk II"
is just about ready to address more challenging tasks
warranted by its new strength in human and
infrastructural resources. In a new era driven by the
Internet's global reach, C-DAC has the technological
muscle to deliver on large national projects in the
public interest that private industry may not always
be able to address. In its 17th year, C-DAC is ready.
The challenge is to harness its rich talent and
resources in a sensible manner that will ultimately
make a difference to the people of India. The
following pages mirror its past achievements as well
as its potential for future good. 

 


WHEN C-DAC was born in 1988, four separate initiatives
in supercomputing were being pursued in India. The
pioneer was the Bangalore-based National Aeronautical
Laboratory (now National Aerospace Laboratory), which
even by 1986 had put together what was possibly the
first parallel processing platform in India - the
Flosolver. 

In Delhi, Sam Pitroda had motivated the Centre for
Development of Telematics (C-DOT) to put together its
own supercomputing machine - CHIPPS (C-DOT's
High-Performance Parallel Processing System). 

The Department of Atomic Energy (DAE) and the Defence
Research and Development Organisation (DRDO) had their
own in-house compulsions to create large
number-crunchers: The Bhabha Atomic Research Centre
(BARC) began work that culminated in the Anupam
supercomputer that Electronics Corporation of India
Ltd (ECIL) produced in small numbers. The DRDO, driven
by the need for advanced computational fluid dynamics
(CFD) studies for its Light Combat Aircraft (LCA)
project, set up a new unit in Hyderabad - Anurag -
which created its own high-performance computer, PACE
(Processor for Aeronautical Computations and
Evaluation). 




 
The Param Padma supercomputer in Bangalore. 

All four initiatives were funded by the Indian
taxpayer - so who wanted a fifth? The government of
the day apparently wanted it - the memory of the
Indian Institute of Science's (IISc) abortive attempt
to purchase one of the leading American
supercomputers, the Cray, purely for academic
research, still rankled and it was a matter of
national pride to be able to say, `If they won't sell
it, we'll make it'. Which was why the development of
yet another supercomputer was one of the major
mandates of the fledgling C-DAC. 

While the other supercomputing projects produced a few
systems that were `given' to captive departments or
institutions, it was the C-DAC venture - Param,
Sanskrit for `supreme' - with no in-house customer to
speak of, that worked towards techno-commercial
success and found dozens of buyers in India and
abroad. 

In order to deliver supremacy in supercomputing, C-DAC
operated in a mission mode. The First Mission for
three years, with a Rs.32 crores in the kitty, aimed
at creating a 1 gigaflop machine - that is a billion
mathematical calculations a second. To achieve this,
C-DAC created a 256-node parallel computing design and
used the then most popular chip for such applications,
the transputer. Massively parallel processing (MPP)
was then the hot new architecture for the
supercomputer, a move away from the classical
techniques of creating a single number-crunching
behemoth. Now they chopped up each computational
challenge into a number of roughly equal tasks, then
allotted them to dozens of separate but identical
units that worked simultaneously, in parallel. 

The first Param 8000 machine was beefed up with
Intel's I 860 microchips to create the enhanced Param
8600. And when the SuperSparc chip became available,
C-DAC found a replacement for the ageing transputers
that kicked up performance of the Param 9000 to 5
Gflops (floating-point operations per second). 

In 1993, Param's Second Mission was launched - a
five-year game plan aiming for a 100 Gflop machine,
the Param 10000. C-DAC learned the hard way that such
speeds could not be achieved entirely with
off-the-shelf components, so its engineers designed
and built their own communication co-processor and
also created their own communication and
interconnecting hardware, named ParamNet. 

The availability of meaningful application software is
crucial to any new supercomputing platform that
aspired to be marketable. C-DAC filled the gap by
setting up a dedicated National Supercomputing
Facility in Pune, with a Param 10000 and its variant
Param Ananth and inviting researchers from dozens of
scientific institutions to use the machines to try out
their own applications in seismic data processing,
structural mechanics, molecular modelling, weather
forecasting and the emerging science of gene mapping.
It was a canny move that paid rich dividends: of all
Indian supercomputing machines, the Param developed a
`fan club' of users who helped spread the skills to
use it. 

The Third Mission for C-DAC in 1999 had a relatively
short time span - three-and-a-half years - and the
task to lead the nation into the tera era. A teraflop
machine cranked out data at a trillion (a million
million) floating point operations a second. By the
turn of the century, supercomputing architectures had
evolved. Current thinking was that the best way to
achieve high-performance was by adopting a `cluster'
architecture. Not just hundreds of nodes in a single
parallel processing machine, but hundreds of
individual computers, all strung together to create a
giant system. The economy came from the individual
computers, which were fairly standard off-the-shelf
desktop machines - and hence fairly cheap. C-DAC
adapted itself to this change and for its teraflop
platform, the Param Padma, it deployed 248 Power-4
chips in a 64-way cluster of IBM machines. It clocked
just over 1 teraflop at peak speed. 

On April 1, 2003, the Param Padma was dedicated to the
nation in its brand new setting - the Terascale
Supercomputing Facility within the C-DAC Knowledge
Park in Bangalore. In June that year, it took India
for the first time into the ranking of the world's Top
500 supercomputers
(http://www.top500.org/lists/2003/06/). It was ranked
171st. 

The latest Param was a 1,000 times more powerful than
the first. In a span of 15 years, C-DAC had built and
delivered four generations of supercomputing
platforms, and over 50 of these machines were in
active use in India as well as in Russia, Canada,
Germany and Singapore among other countries. After the
United States and Japan, India was the only country to
have built supercomputers for use beyond its own
shores. 

As the next major step in the next four years, it
would not only be faster computers but more of them
linked to a grid that would drive the vision of C-DAC.
The mission could not have been better timed when big
countries and big players are focussing on the same,
looking for inflection points. C-DAC has commenced
another journey. 

A national computing grid is not an easy job. But when
the goal is achieved, it will be a truly awesome
resource. And going by earlier record, this will be
yet another mission where C-DAC will deliver. 




 




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