What is Damaris? Damaris is a middleware targeting multicore HPC
platforms. It proposes to dedicate one core to I/O, data-
processing prior to effective storage in a parallel file system
or in-situ visualization. It provides an extremely simple API
and can be easily integrated in existing large-scale
simulations. Damaris can be seamlessly connected to the VisIt
visualization software in order to provide in-situ visualization
capabilities with low impact on the running simulation. The
following video presents Damaris and includes a demo: If you
don't have flash on your device, watch it on YouTube! Download
an avi file here (right click > save link as…) Why dedicating
cores? Most people that we met asked why dedicating cores, that
is to say a large amount of computation power, simply to perform
I/O. The answer is simple: As we increase the scale of
supercomputing machines and run towards exascale, it is often
observed that using all the cores of each node is not
appropriate. Because of a lake of scalability of s