[MPICH] Re: ( 瑞星提示-此邮件可能是垃圾邮件 )RE: [MPICH] about MPI_Reduce

[Thomas Moschny]

On Monday 17 October 2005 19:27, you wrote:
> I don't know what's going on. It seems that the reduction function never
> know the structure of the derived datatype. Moreover, the entry of the
> data sent to the reduction function is not valid.

The attached small test program produces the expected output with mpich-1.2.6:
$ mpicc -Wall -W -Wno-unused -O2 -g -std=c99 reduce.c -o reduce
$ mpirun -np 10 ./reduce
10 0 30 0 50 0 70 0

BTW: Identical output is produced when I compile and run the program with
LAM 7.1.1.

Regards,
Thomas



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