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Subject: Re: [OMPI devel] mpi/java question
From: Ralph Castain (rhc_at_[hidden])
Date: 2013-02-20 15:44:31


Might be just fine - need to see how many of the types have issues, how best to correct them

On Feb 20, 2013, at 12:32 PM, George Bosilca <bosilca_at_[hidden]> wrote:

> That is wrong with MPI_INT64_T ? (MPI 3.0 standard page 26.)
>
> George.
>
> On Feb 20, 2013, at 21:12 , Ralph Castain <rhc_at_[hidden]> wrote:
>
>>
>> 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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>>> devel mailing list
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>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>
>>
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