Re: [Plplot-devel] Ada status

[Jerry <lan...@qw...>]

On Jul 18, 2008, at 11:17 AM, Alan W. Irwin wrote:

> On 2008-07-16 17:55-0600 Orion Poplawski wrote:
>
>> Alan W. Irwin wrote:
>>> Orion, how does the Ada component of ctest work on Fedora (which  
>>> presumably
>>> also has gnat-4.3 or later)?
>>
>> Testing latest svn with Fedora rawhide with gnat 4.3.1.  Compiles  
>> fine but ada test x21a has now consumed more than 8 minutes of CPU  
>> time and appears hung.  I'll check back in the morning...
>
> I guess not all gnat-4.3 packages are the same because I get  
> results that
> are different from both Orion's results and Jerry's!
>
> It turns out I do have access to gnat-4.3 for Debian testing so I  
> installed
> that, and x21a runs without problems for me contrary to Orion's  
> result but
> in agreement with Jerry's result. However, when I look at the  
> second and
> third pages, the Ada results for the first three of the 6 plots on  
> each page
> are garbage.  (Those plots should agree fairly closely with the  
> last 3 plots
> on each of those pages.)
>
> Jerry, do you confirm those garbage plots for example 21 on your  
> platform?
> If so, then my guess is when you fix this issue, Orion's issue will  
> also go
> away. Note, the garbage results for Ada are a separate issue from the
> reformatting of these Ada plots that should be done in any case to  
> conform
> to the new C template results for example 21.

Yes, I get garbage for the same plots as you--looks like some sort of  
indexing problem around the periphery of the data arrays. I apologize  
for submitting this in this state.

I don't have any idea what might be Orion's problem with the long CPU  
times.
>
> The other difference I have with both Orion and Jerry for gnat-4.3 is
> that example 19 (both thick and thin) gives me the following error.
>
> raised STORAGE_ERROR : stack overflow (or erroneous memory access)
>
> I also saw this same error for my previous gnat-4.1 platform.
>
> Andrew, do you see this issue on the various gnat platforms  
> accessible to
> you or am I the only one seeing it?
>
> For those who sail through example 19 without this error, do your  
> Ada results
> agree exactly with the corresponding C results?

For me, x19a runs without reporting any errors and makes the same  
Postscript as x19c.

Jerry
>
> Alan
>
>