Re: Strange runtime error in Compiled function
- To: mathgroup at smc.vnet.net
- Subject: [mg127574] Re: Strange runtime error in Compiled function
- From: David Bailey <dave at removedbailey.co.uk>
- Date: Sat, 4 Aug 2012 21:47:55 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
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On 03/08/2012 09:19, Axel wrote:
> Hi everybody,
> I'm using Mathematica 8.0.1 on a 32bit Win7 system and I have strange problems with the Compile function.
> I have this simple function:
>
> compileTestC = Compile[{{paramList, _Integer, 1}},
> Module[{a, b},
> Print[paramList[[1]]];
> a = paramList[[1]];
>
> If[False,
> b = 1,
> b = 0
> ] ;
> Return[5]
> ]
> ] ;
>
> When I compile and run it the first time, it produces the expected results:
> compileTestC[{100}]
> 100
> 5
>
> But for all subsequent calls I get this strange error message:
> compileTestC[{100}]
> 100
> CompiledFunction::cflist: Nontensor object generated; proceeding with uncompiled evaluation.>>
> 100
> 5
>
Admitedly I am using the 64-bit version of 8.0.4, but I don't think that
is relevant. For me your code runs in the same way however many times I
run it:
In[791]:=
compileTestC =
Compile[{{paramList, _Integer, 1}},
Module[{a, b}, Print[paramList[[1]]];
a = paramList[[1]];
If[False, b = 1, b = 0];
Return[5]]];
In[792]:= compileTestC[{100}]
100
Out[792]= 5
In[797]:= compileTestC[{100}]
100
Out[797]= 5
I am guessing that you actually do something else between the first and
second calls!
Post some code that actually fails, and someone will tell you what is
wrong! Preferably start from a clean kernel, so that whatever code you
post, is not affected by something we cannot see.
David Bailey
http://www.dbaileyconsultancy.co.uk