[GSLL-devel] matrix-product: transpose keyword resulting in memory fault

[Liam Healy]

On Fri, Jul 29, 2011 at 4:31 PM, Liam Healy <lhealy at common-lisp.net> wrote:

> Please post a complete (all definitions provided) example of this error (as
> small as possible please).   Thanks.
>
> Liam
>
>
> On Sun, Jul 17, 2011 at 12:07 PM, Ravi Desai <rd7190 at gmail.com> wrote:
>
>> Hello all,
>>    I needed to do a matrix-vector multiplication where the matrix would
>> have to be transposed (I checked the dimensions). I tried to use the
>> transpose functionality in the matrix-product function itself.
>>
>> (matrix-product v (f1 pattern-index) v0 1.0 1.0 :trans :notrans)
>> where 'v' is a vector of weights and (f1 pattern-index) returns a vector,
>> and v0 was an empty vector I'd made just prior to this line in the let
>> definition.
>>
>> It compiled without any errors, but would say corruption error, and memory
>> fault at 1 (pc=...., sp=...), and that the integrity of this image is
>> possibly compromised, continuing with fingers crossed.
>>
>> when I removed the line defining v0 and placed the following instead,
>>
>> (matrix-product (matrix-transpose v) (f1 pattern-index))
>>
>> The thing compiled perfectly and ran without any errors.
>>
>> To be quite honest I prefer using it this way since its more descriptive
>> of whats going on.
>>
>> Thanks
>>
>> ______________________________**_________________
>> GSLL-devel mailing list
>> GSLL-devel at common-lisp.net
>> http://lists.common-lisp.net/**cgi-bin/mailman/listinfo/gsll-**devel<http://lists.common-lisp.net/cgi-bin/mailman/listinfo/gsll-devel>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.common-lisp.net/pipermail/gsll-devel/attachments/20110729/103b45bf/attachment.html>