Since you are using C++, you might also want to investigate the Boost C
++ MPI bindings.
http://www.boost.org/doc/libs/1_35_0/doc/html/mpi.html
On Apr 11, 2008, at 12:33 PM, Alessandro Palandri wrote:
Hello,
I am a new user of MPI and I would like to have your opinion on the
following issue.
With 1 processor I keep the data in
std::vector<std::vector<double> > X
Then I call a function that takes various arguments, among which
X[ i ] and X[ j ], i.e. two sub-vectors of X.
With MPI I would have the same function execute on different
processors for different values of i and j in X[ i ] and X[ j ].
From my understanding since std::vector is not an MPI type it cannot
be passed neither as a message nor an element of an MPI structure. I
thought of using
double X[200][4000]
which MPI would pass but I don't see how to isolate a single row,
i.e. X[99] would not make sense in this context.
Any suggestion for an efficient and possibly simple solution?
Thank you for your help,
Alessandro
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Jeff Squyres
Cisco Systems
