Re: Famous Mathematica 5.0 not working with Mathematica 6?

*To*: mathgroup at smc.vnet.net*Subject*: [mg77010] Re: Famous Mathematica 5.0 not working with Mathematica 6?*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Thu, 31 May 2007 03:37:08 -0400 (EDT)*Organization*: The Open University, Milton Keynes, UK*References*: <f3jif1$dpc$1@smc.vnet.net>

eric.laruelle at gmail.com 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.fh-vorarlberg.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, Jean-Marc