mathematica V 2.2.2 runs 2X faster in PowerPC (native) than in 486/66 with mathematica V2.2 (enh)
- To: mathgroup at christensen.Cybernetics.NET
- Subject: [mg269] mathematica V 2.2.2 runs 2X faster in PowerPC (native) than in 486/66 with mathematica V2.2 (enh)
- From: jcp at mvuas.att.com (Julio C Proano +1 508 960 2347)
- Date: 1 Dec 94 14:09:00 GMT
MathGroupers,
I tested the simple computations, using mathematica V 2.2 enanced in a 486/66,
and I got the following times...
486/66 Ver 2.2 (enhanced) for Windows
Timing[Inverse[Table[Random[],{100},{100}]];]
{2.31000000000131*Second, Null}
Timing[N[Pi,500];]
{0.1099999999969441*Second, Null}
Timing[10000!][[1]]
21.15000000000145*Second
Julio C Proano
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MathGroupers,
I had the opportunity to compare the performance of the native version of MMa
(2.2.2) running on a Power Mac 7100/66 with that of a Quadra 700 running
version 2.2.1. The notebook used represents a fairly good mix of symbolic
manipulation, number crunching, and rendering of postcript plots (including 3D
plots). The Power Mac has 24 MB of memory and virtual memory was turned off.
The Quadra 700 has 20 MB of memory and virtual memory was also turned off. The
results were as follows:
Machine Elapsed Time
-------- ------------
7100/66 230 seconds
Quadra 700 1815 seconds
The Power Mac was nearly 8 times faster than the Quadra.
I also ran a simpler test with the following results:
Quadra 700
Timing[Inverse[Table[Random[],{100},{100}]];]
{7.95 Second, Null}
Timing[N[Pi,500];]
{0.55 Second, Null}
Timing[10000!][[1]]
57.6833 Second
Power Mac 7100/66
Timing[Inverse[Table[Random[],{100},{100}]];]
{0.966667 Second, Null}
Timing[N[Pi,500];]
{0.05 Second, Null}
Timing[10000!][[1]]
9.16667 Second
I would be interested in seeing the results of this simple test from other
platforms such as the Sparc workstations and the Pentium-based PC.
Ed Boss
NOAA/Pacific Marine Environmental Laboratory
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