[mpich-discuss] MPICH2's predefined reduce operation can not support quadruple precision

Jilong Yin yinjilong at gmail.com
Wed May 12 02:31:34 CDT 2010


Sorry, I can not compile MPICH2 correctly

(I haven't compile MPICH2 before by myself)

My computer is Windows 7 (64bit) .

I tried to compile under Cygwin. But when compiling it , I got errors as
attached file.

Though it is mostly my mistake, but maybe you can help me

Thank you a lot.


2010/5/12 Pavan Balaji <balaji at mcs.anl.gov>

>
> The ticket you point out in your test program (
> https://trac.mcs.anl.gov/projects/mpich2/ticket/1028) has been fixed in
> r6426 as mentioned on the ticket. Did you try the nightly snapshots (
> http://www.mcs.anl.gov/research/projects/mpich2/downloads/tarballs/nightly/trunk)?
> If not, can you try them out and see if you are still seeing this problem?
>
> Thanks,
>
>  -- Pavan
>
>
> On 05/11/2010 08:24 PM, Jilong Yin wrote:
>
>>
>>    Hello,
>>
>>
>>      MPICH2's  predefined reduce operation  seems it can not support
>>    quadruple precision.
>>
>>
>>      I used the attached  program to test this. And got the following
>>    error message,
>>
>> Fatal error in PMPI_Reduce: Invalid MPI_Op, error stack:
>> PMPI_Reduce(1198).......: MPI_Reduce(sbuf=0012FF00, rbuf=0012FF10,
>> count=1, dtyp
>> e=0x4c00102b, MPI_SUM, root=0, MPI_COMM_WORLD) failed
>> MPIR_SUM_check_dtype(97): MPI_Op MPI_SUM operation not defined for this
>> datatype
>>
>>
>>      If so, is there any plan to support this ?
>>
>>
>>     Thank you.
>>
>>
>>
>>    YIN
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
>
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji <http://www.mcs.anl.gov/%7Ebalaji>
> _______________________________________________
> mpich-discuss mailing list
> mpich-discuss at mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>
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