[mpich-discuss] The differnce between MPI_Get_count & MPI_Get_element?

[Nicolas Rosner]

This is explained here (see approx. halfway down the page):

   http://www.mpi-forum.org/docs/mpi-11-html/node59.html

In a nutshell: Similarly to your last question, there is no difference
if only basic datatypes are involved. But if you used custom types to
receive, say, N records consisting of K floats each, one function
would return N while the other would return N x K. See the link for
further details.

Hope this helps,

Nicolás




2011/4/11 KongTao <vision.kt at gmail.com>:
> Who can tell me the difference between them ?
> thank you^^
> --
> Kong Tao
> School of Maths. Shandong Univ. P.R.C.
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