Posted on
12/18/2006
in Products
EarthJet.Net Performance
Preliminary
tests reveal that EarthJet.Net for a 1000 particles has an increase in
performance 4 times that of version one.
I ran
version one with a 1000 particles on a test chute. On a regular AMD 64
3800+ the first particle to hit the deflector plate took 2:25 minutes.
Then
I ran the same chute with the same particle size, tonnage, and a 1000
particles using the latest version, and it only took 37 seconds for the
first particle to hit the deflector plate. It is quite surprising that
such a performance boost is even possible. Yes, the new version was
compiled using the latest Visual Studio compiler with fast floating
point
optimization setting, while version one was compiled
with VS 6.0. But the
biggest performance factor is the code optimization itself. The
Discrete Element Method incorporates for particle localizations what is
called, "cell memory", or at least something like that of a honeycombed
memory packaging structure in which particles get located by the cell's
address. The
so-called cell memory grid structure provides a means for optimized
particle calculations. EarthJet.Net's cell memory model has been
totally reworked and simplified thus giving it the extra performance
boost. I have not even attempted using OpenMP (API for Parallel
Processing) yet. Will be interesting indeed.
By
Frank Neubecker