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Subject: Re: [OMPI devel] mpi/java question
From: Ralph Castain (rhc_at_[hidden])
Date: 2013-02-20 15:12:48


On Feb 20, 2013, at 12:08 PM, Dmitri Gribenko <gribozavr_at_[hidden]> wrote:

> On Wed, Feb 20, 2013 at 10:05 PM, Ralph Castain <rhc_at_[hidden]> wrote:
>>
>> On Feb 20, 2013, at 11:39 AM, Dmitri Gribenko <gribozavr_at_[hidden]> wrote:
>>
>>> On Wed, Feb 20, 2013 at 9:34 PM, Jeff Squyres (jsquyres)
>>> <jsquyres_at_[hidden]> wrote:
>>>> If someone could write some generic java code to figure out the size of a java type (and either printf it out, or write it to a file, or otherwise be able to give that value to a shell script), that would be a good start.
>>>
>>> No need for that -- type sizes in Java are fixed.
>>>
>>> http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
>>
>> True - but the ones on the C-side are not, and that's the problem.
>
> My point was that there is no need to write java code to detect type
> sizes. About C types -- don't we already check those anyway? Sure,
> we need to match these with java side, but there's no need to write
> new code to check type sizes.

I think you misunderstood - we are talking about writing build-system code that matches the discovered C-type sizes to the corresponding known Java type. This is the source of the reported problem.

And yes - Jeff misspoke in his note. I've straightened him out over the phone. :-)

>
> Dmitri
>
> --
> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr_at_[hidden]>*/
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