[Beowulf] array shape difference

Larry Stewart stewart at serissa.com
Tue Nov 10 17:43:13 PST 2009


On Tue, Nov 10, 2009 at 8:30 PM, amjad ali <amjad11 at gmail.com> wrote:

> HI,
>
> suppose we have four arrays with same number of elements say 60000., but
> different dimensions like:
>
> array1(1:60000)
> array2(1:2, 1:30000)
> array3(1:2, 1:300, 1:100)
> array4(1:4, 1:15, 1:10,  1:100)
>
>
> Does each of these arrays in fortran will occupy same amount of memory?
>
> For sending/receiving each of these, Does MPI has the same (or nearly same)
> overhead? or any significantly different overhead is involved in handling
> each of these arrays (by MPI)?
>
> They should take the same amount of space and have nearly identical
transfer times with MPI.
(If you send the whole thing)

-L
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