Dienstag, 8. Januar 2008
Today there was a post on reddit about a nice syntax for monads in python and it makes me wonder whether monads coudl help a lot in BSP. What they essentially provide is an abstraction for map and filter operations on arbitrary data sets. This leads me to this question: "Can the BSP model be rewritten in terms of monads?"
Montag, 7. Januar 2008
Bulk synchronous parallel programming is a programming model that divides the execution flow into two alternating phases:
- local computation
- global communication and synchronisation
SGI delivers the machine with preinstalled linux with kernel 2.6 which of course includes a python interpreter. It is version 2.4.2. Not bleeding edge but pretty up to date. But of course no support of MPI or PVM. So I dabbled in installing some MPI module. Currently there are a handful of MPI modulaes available but most of them seem defunct or dead. Finally I found a simple MPI module in the Scientific Python module by Konrad Hinsen (http://dirac.cnrs-orleans.fr/plone/software/scientificpython) which installed itself flawlessly and contains a nice module called BSP aka bulk synchronous parallel programming.
Started my new job at the Leibniz Supercomputing Centre in Munich. One of my goals will be the implemetation of a good scripting environment on the HLRB2. It is an SGI Altix system with 9728 cores. Looks kinda cool... see: