project was started in 1993 to provide a reliable
basis for tracking and detecting trends in high-performance
computing. Twice a year, a list of the sites operating
the worlds 500 most powerful supercomputer systems
is assembled and released. The best performance on
the Linpack benchmark is used as performance measure
for ranking the computer systems. The list contains
a variety of information including the system specifications
and its major application areas.
Top500 List was introduced during the International
Supercomputer Conference (ISC2003)
in Heidelberg, June 24-27, 2003. C-DAC's Tera Scale
Supercomputer PARAM Padma figures in this list at rank number 171.
It is the first supercomputer to find place in the
Top500 list which is indigenously designed, developed
and commissioned in India.
PARAM Padma Configuration used for Top500:
is a cluster of 62 4-way, IBM pSeries P630 nodes,
interconnected through a high performance System Area
designed and developed by C-DAC. The cluster has 496
GB of aggregate Memory and 5 TB of internal storage.
PARAM Padma also has one 32 way P690 SMP node for
development purpose. The PARAM Padma is powered by
a suite of C-DAC's
Padma Technical Specifications
Performance LINPACK(HPL) is a popular benchmark suite
to evaluate the capabilities of Super Computers and
Clusters and involves solving a system of linear equations.
The results of this benchmark are published semi-annually
in the list of the world's Top500 most powerful supercomputers.
The Top500 test with optimal parameters on 62 node
(248 processors) configuration has resulted in approximately
532 GFlops to the peak performance of 992 GFlops on
PARAM Padma. The HPL performance thus is 53.6% of
peak performance and the matrix size used is 224000.
PARAMNet interconnect has been found to perform significantly
better in all HPL tests and scales very well upto
62 nodes (248 processors) and beyond.
The description of
PARAM Padma cluster used in HPL tests is as follows:
||62 nos. of
||2.5 Gbps Full-duplex
Switched PARAMNet-II network
One PARAMNet NIC Card per node
||IBM AIX version
Provider Library (VIPL)
HPL - 1.0 - September 27, 2000
Authored by: Antoine P. Petitet
University of Tennessee, Knoxville
Innovative Computing Laboratories
Paper on PARAM Padma:
S. C. Purohit, Director, C-DAC was invited to
deliver talk on "PARAM
Padma- A Teraflops Computing System and HPC in India"
in the session "HPC
in Asia and Europe" at ISC2003,