India’s supercomputing prowess moved up several notches after
it unveiled Pratyush, the supercomputer.
It is an array of computers that can deliver a peak power of
One petaflop is a million billion floating point operations
per second and is a reflection of the computing capacity of a system.
According to by the Indian Institute of Tropical Meteorology
(IITM), Pratyush is the fourth fastest supercomputer in the world dedicated for
weather and climate research, and follows machines in Japan, USA and the United
It will also move an Indian supercomputer from the 300s to
the 30s in the Top500 list, a respected international tracker of the world’s
The machines will be installed at two government institutes:
4.0 petaflops HPC facility at IITM, Pune; and 2.8 petaflops facility at the
National Centre for Medium Range Weather Forecast, Noida.
The government had sanctioned Rs.400 crore last year to put
in place a 10-petaflop machine.
A key function of the
machine’s computing power would be monsoon forecasting using a dynamical model.
This requires simulating the weather for a given month — say
March — and letting a custom-built model calculate how the actual weather will
play out over June, July, August and September.
With the new system, it would be possible to map regions in
India at a resolution of 3 km and the globe at 12 km.