We need a logo designed for our latest high performance computer, named COSMA (version 7), at Durham University. COSMA is the Memory Intensive system (MI@DiRAC) of the DiRAC National facility (http://www.dirac.ac.uk) and funded by STFC. The system is designed to run the memory hungry simulations of Cosmology and Astrophysics.
The Institute for Computational Cosmology (ICC) has been running the COSMA machines (COSMA is short for Cosmology Machine) for over 16 years and we would like to celebrate our latest machine refresh with a logo that reflects our work in studying the universe. Elements we would like to see in the logo could include galaxies, black holes, stars, supernovae and solar systems, for example the logo could be a model universe with a detailed model of the sun included.
The logos of Durham University, DiRAC, STFC and the ICC will sit alongside in web pages and presentations. Please also note that the logo will be printed on the sides of the computer racks so you can think long and rectangular in shape, should that inspire you (see the attached photo of COSMA, 5th version, to get an understanding of a computer rack). This further means you are likely to need to put forward a logo that can be printed on black as well as white backgrounds. The final design should reflect the cosmos and exploration.
What does COSMA do?
The COSMA@DiRAC supercomputer has been designed and built to make virtual universes. The goal is to use what we know about how the Universe started (the `initial conditions'), apply the known laws of physics and calculate what emerges. We start the simulation of a virtual universe in the computer shortly after the Big Bang. The visible universe started with the Big Bang, a rapidly expanding `ball' of matter and energy. At this early time the Universe was much smaller and denser than today and almost completely smooth. Fortunately observations of radiation from the earliest observable times, the Cosmic Microwave Background, tell us a lot about the properties of the early universe, including what the main ingredients were, how they were distributed and how fast the Universe was expanding. We also know a great deal about the laws of physics. For creating a virtual universe, the most important one is Einstein's law of General Relativity. This governs how the Universe as a whole expands with time and how gravity, acting on dark matter and gas, causes the cosmic web of structures to condense out of the almost uniform soup left-over after the Big Bang. To create the visible Universe, however, we also need to include the laws that determine how normal matter interacts with light, which makes it possible for gas to cool down and condense, and to teach the computer the physics involved in the formation of stars and black holes. COSMA@DiRAC is also used to model colliding black holes, solar physics, planetary physics, such as Jupiter, and particle beams.