News / Computer Achitecture Group.

DECEMBER 22, 2011

CONFERENCIA: 10^18 OPERATIONS PER SECOND. EXASCALE: CHALLENGES AND OPPORTUNITIES.

DAMIÁN ÁLVAREZ MALLÓN
(JÜLICH SUPERCOMPUTACIÓN CENTRE, GERMANY)

Place: Room 3.3. Faculty of Computer (UDC)
Date: Jueves, 22 de diciembre de 2011
Time: 17:30

Processor architectures have changed significantly in recent years. The rate increase is no longer possible. Instead the number of cores. The pressure on the memory hierarchy increases by this fact. Interconnection networks are beginning to climb high performance at a lower rate. The largest supercomputer in the world, "K Computer" has nearly 700 racks and requires a power of more than 12MW. The size and power consumption of current supercomputers can no longer increasing, and marked the psychological barrier of 20 MW of peak power. The technology has to step significantly larger than those given to him now to get acceptable performance per watt to reach the exascale. Architectures that allow this break with the above, and its programming is complex. Therefore, the performance improvement with each generation and is not implied, and Mai now than ever requires involvement of the software. A feeling such as "accelerators" that can not be addressed in a unique way. The current programming models are beginning to be questioned. Even the hardware errors are numerous and mai cooling systems are inefficient.
Reach the many challenges posed exascale, but also many opportunities for innovation. This talk will give an overview of the problems facing the community of supercomputing to reach the mark of 10 ^ 18 operations per second. We will explain these problems and some solutions proposed by Europe to address this challenge, taking place during the coming years as well as the path taken by a former student from the FIC one of the main projects in this area.