Re: a big limit of mathematica?
LumisROB wrote:
<snip>
when I
criticize Mathematica my message it doesn't reach destination (on
comp.soft-sys.math.mathematica). Now since I am not an expert of
neswgroup someone can say to me ……why this thing happens? who filters
the messages? Is it moderate by Wolfram !!?
No, Steve Christensen is the moderator.
Maybe your message is not getting through, (but you seem to be
able to send to this newsgroup!)
You do not know how much memory Mathematica uses up unless you
measure it. It may use several times as much memory as you think
it needs. In some cases it may use O(n^2) memory when you think it
needs only O(n). It may run out of memory on a stack which is allocated
a finite resource. ($RecursionLimit is 256. But the error message
you got is less informative.) Read about ByteCount and Memory Management.
If you habitually run out of memory in a computer algebra system,
you will have to find some way to be clever to reduce the size
of the problem, or find a different method.
You may very well have found a bug in Mathematica, but that may
not solve your problem. You may just convert a program that runs
out of memory into one that runs (almost) forever.
RJF
.
Relevant Pages
- Re: a big limit of mathematica?
... >>arrays in Mathematica. ... > The created object is an packedarray but the dimension of which the ... > memory is increased doesn't correspond to what you say. ... This is operating system dependent. ...
(sci.math.symbolic) - Re: a big limit of mathematica?
... As of version 5.2 the maximum number of elements in a packed array is, ... WinXP then your Mathematica installation will most likely be for the ... >>and compute its determinant. ... in any way other than to run out of memory. ...
(sci.math.symbolic) - Re: a big limit of mathematica?
... One is that most 32 bit Mathematica platforms have a 2 ... Just for this motive I have not marveled when the calculation is ... > The determinant computation will require at ... >upshot is it is not hard to see memory being an issue. ...
(sci.math.symbolic) - Re: Why dont Wolfram build Mathematica 64-bit on SPARC?
... see that the Mathematica kernel is 64-bit by running the `file` command ... UltraSPARC> file MathKernel ... you are correct that Mathematica 5.1 ... However, as memory sizes around 16-32GB become more common, I expect ...
(sci.math.symbolic) - Re: a big limit of mathematica?
... >arrays in Mathematica. ... The created object is an packedarray but the dimension of which the ... memory is increased doesn't correspond to what you say. ... >such issues will not be specific to Mathematica ...
(sci.math.symbolic) |
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