The K computer is a supercomputer located in Kobe, Japan that was ranked as the world's fastest in 2011. It has over 705,000 cores across 88,128 nodes connected by a proprietary interconnect called Tofu. While power intensive at 9.89 MW, it is relatively efficient at 824.6 GFlop/kWatt. The K computer is used for climate research, disaster prevention, drug discovery, and other scientific applications through highly parallel simulations.

1. COMPUTER SIMULATION CREATE THE FUTURE

2. CONTENTS
Introduction
Architectural View
Network
File System
Power Consumption
Performance and Development
Uses of k computer

3. WHAT IS K-COMPUTER
Named from Japanese word “kei”,meaning 10
quadrillion
 manufactured by fujitsu,currently installed at
Riken Advanced Institute of Computational
Science campus in kobe,japan
Based on distributed memory architecture
Linux Kernel based operating system

4. In June 2011, TOP500 ranked K the world's fastest
supercomputer, with a computation speed of over 8
petaflops
As of November 2016, K is the world's seventh-
fastest computer, with the Chinese Sunway
TaihuLight and Tianhe-2 being the fastest
supercomputers.

5. Network
The nodes are interconnected by Fujitsu's proprietary
Torus fusion (Tofu) interconnect.
Tofu has a six-dimensional mesh/torus topology, a
scalability of over 100,000 nodes, and full-duplex links
that have a peak bandwidth of 10 GB/s (5 GB/s per
direction).
Each node is connected to its own InterConnect
Controller (ICC) chip, which contains four Tofu interfaces
(one for the node and three for connecting to other ICC
chips) and a router.

6. Tofu's six-dimensional mesh/torus topology is abstracted
by software to appear as a three-dimensional torus
It is supported by a Tofu-optimized version of the open-
source Open MPI Message Passing Interfacelibrary.
 Users can create application programs adapted to
either a one-, two-, or three-dimensional torus network.

8. Architecture VIEW..
The K computer comprises 88,128 2.0 GHz eight-core
SPARC64VIIIfxprocessors contained in 864 cabinets, for
a total of 705,024 cores, manufactured by Fujitsu with
45 nm CMOS technology.
 Each cabinet contains 96 computing nodes, in addition
to 6 I/O nodes. Each computing node contains a single
processor and 16 GB of memory. The computer's water
cooling system is designed to minimize failure rate and
power consumption.

9. File system
The system adopts a two-level local/global file system
with parallel/distributed functions, and provides users
with an automatic staging function for moving files
between global and local file systems.
 Fujitsu developed an optimized parallel file system
based on Lustre , called the Fujitsu Exabyte File System
(FEFS), which is scalable to several hundred petabytes.

10. Power consumption
 K computer reported the highest total power consumption of
any 2011 TOP500 supercomputer (9.89 MW), it is relatively
efficient, achieving 824.6 GFlop/kWatt.
 According to TOP500 compiler Jack Dongarra, professor of
electrical engineering and computer science at the
University of Tennessee, the K computer's performance
equals "one million linked desktop computers".
 The computer's annual running costs are estimated at
US$10 million.

11. Performance and development

12. Uses of K Computer
Climate research,
Disaster prevention,
Drugs discovery,
Industrial innovation,
Material science

13. AERODYNAMIC SIMULATION
ON K COMPUTER

15. MEMBERS:
RAUSHAN KUMAR 1551137
RAVI KUMAR 1551138
ABHISHEK GOYAL 1551159
AMAR ANAND 1551157
ANKIT SINGH RAJPUT 1551139
THANK YOU!!