
Re: Famous Mathematica 5.0 not working with Mathematica 6?
Posted:
May 31, 2007 4:00 AM


Anonymous wrote: > Hello. I am performing an evaluation of Mathematica 6 with the demo > version on both Windows XP 32 bits and OS X 10.4.9. However both crash > when evaluating the famous Karl's Mathematica benchmark: > http://www2.staff.fhvorarlberg.ac.at/~ku/karl/timings50.html > > Did anyone experience the same thing? Have you got any suggestion? > Thank you.
Hi,
I have done some more testing, and the culprit seems to be the graphic engine. Having commented out the following two expressions from Karl's original notebook,
Timing[Plot3D[Sin[x y], {x, 0, 2 \[Pi]}, {y, 0, 2 \[Pi]}, PlotPoints > 4000, DisplayFunction > Identity]][[1]], Timing[Plot3D[Evaluate[q4[x, t]], {x, 40, 40}, {t, 40, 40}, PlotPoints > 2000, DisplayFunction > Identity]][[1]]
Mathematica did not consume too much memory.
Moreover, if one loads the legacy graphic engine
In[1]:= << Version5`Graphics`
then evaluating the following expression
In[2]:= Plot3D[Sin[x y], {x, 0, 2 \[Pi]}, {y, 0, 2 \[Pi]}, PlotPoints > 4000, DisplayFunction > Identity]
Out[2]= SurfaceGraphics
works fine. However, evaluating the same expression with the new graphic engine eats up all the memory available.
In[3]:= << Version6`Graphics`
In[4]:= Plot3D[Sin[x y], {x, 0, 2 \[Pi]}, {y, 0, 2 \[Pi]}, PlotPoints > 4000, DisplayFunction > Identity]
Regards, JeanMarc

