QUESTION: Why do we need a parallel computer to do good Computational Physics?
ANSWER: MANY interesting problems need -
LONG run times to reach equilibrium or steady state,
MANY different random realizations,
MANY different temperatures or pressures !
There is a limit to processor speed and so the only way to get the above is
to connect many processors with a fast communication switch between them.
Either the system itself,(demanding fast communication between the parts) or the
realizations are shared out. There is a limit to a students ability to do bookeeping for many runs and a single machine with many identical nodes makes this realistic.
Example at left: to study a LONG nanotube for LONG runtimes - divide it between processors.
After years of delay we got first NANCO and now TAMNUN for the TECHNION
and as the icing on the cake Israel has recently become a partner in PRACE,
the European Supercomputer sharing community.
See the real TAMNUN
homepage on the Computer Center Site.
Acounts can be opened on TAMNUN by pointing your browser to the registration page
Some more details on the mailing list archive which is linked below.