itaps-parallel Notes from tutorial exercises

[Lori A. Diachin]

Hi Ryan,  It's probably not critical to reconfigure to use gcc.  I'm 
going to work through your example now.. I'll let you know if I find any 
issues.

Lori

Ryan Kaufman wrote:
> On Tue, Nov 11, 2008 at 1:02 PM, Lori A. Diachin <diachin2 at llnl.gov> wrote:
>   
>> Hi Vitus and all,
>>
>> I went through both tutorials this morning and overall think they're quite
>> nice.  I like that you provide the basics here in the second exercise - it's
>> a very nice bridge between Hello and Smooth.  I have a few minor notes
>> (below).
>>
>> As a general comment to everyone - do we have any tutorial exercises that
>> aren't in C++?  I've gone through Hello, Load Balance and Smooth so far and
>> I'm worried we'll give folks the wrong impression..   I see a .c file in the
>> Hello directory -- would it be hard to add a fortran hello example?
>>
>> Lori
>>
>> Tutorial 1:
>>
>> Exercise 2: It's not clear to me where the MPI communicator is initialized
>> in the test file?  I assume it's COMM_WORLD, but you refer to 'initialized
>> above' and I don't see it.  I assume it's in the Init function, but it might
>> be helpful to make it more explicit
>>
>> Exercise 3: Remind users how to get a string length; not all users will be
>> c++ savy.
>>
>> In general it's not always clear to me why I'm doing something, getting the
>> parts, getting various handles, etc - is it needed for Zoltan?  If you can,
>> it would be useful to add a sentence to the beginning of each exercise
>> giving a bit of motivation for why I need to call this function.  It will
>> help folks think through it themselves later..
>>
>>
>> Tutorial 2:
>>
>> Might prefer to have different test file names in tutorial 1 and tutorial
>> 2.... Actually, rather than switching files/directories, you could keep them
>> all part of a single tutorial and just use the #define trick that Karen used
>> in Hello.
>>
>> Is .vtu a vtk format?  I'm not familiar with it and was surprised to see
>> .vtu's... you might want to comment on what to expect in the notes for
>> Exercise 1
>>
>>
>> ~
>>
>>     
>
> FronTier tutorial uses only C, however it compiles with g++. Changing
> to gcc won't be a problem if I pull my hair out for a day or so
> setting up the proper "extern 'C'" directives in FronTier so that
> linkage goes correctly. Is this desirable?
>
>