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

Pavan Balaji balaji at mcs.anl.gov
Thu May 13 08:35:51 CDT 2010


I don't know much about Windows/Cygwin. I'll let our windows expert take 
this over.

  -- Pavan

On 05/12/2010 03:10 AM, Jilong Yin wrote:
> Sorry, I did not capture the stderr output, that is
> 
> make[3]: Entering directory 
> `/home/nakata093/mpich2-trunk-r6642/src/util/mem'
>   CC              trmem.c
>   CC              handlemem.c
>   CC              safestr.c
>   CC              argstr.c
>   CC              strerror.c
> strerror.c:13: error: conflicting types for ‘strerror_r’
> /usr/include/string.h:69: error: previous declaration of ‘strerror_r’ 
> was here
> 
> strerror.c: In function ‘MPIU_Strerror’:
> strerror.c:28: warning: assignment makes pointer from integer without a cast
> make[3]: *** [strerror.o] Error 1
> make[3]: Leaving directory `/home/nakata093/mpich2-trunk-r6642/src/util/mem'
> make[2]: *** [all-redirect] Error 2
> make[2]: Leaving directory `/home/nakata093/mpich2-trunk-r6642/src/util'
> make[1]: *** [all-redirect] Error 2
> make[1]: Leaving directory `/home/nakata093/mpich2-trunk-r6642/src'
> make: *** [all-redirect] Error 2
> 
> 
> 
> 2010/5/12 Jilong Yin <yinjilong at gmail.com <mailto:yinjilong at gmail.com>>
> 
>     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 <mailto: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
> 
> 
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> 
>         -- 
>         Pavan Balaji
>         http://www.mcs.anl.gov/~balaji <http://www.mcs.anl.gov/%7Ebalaji>
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> 
> 
> 
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji


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