Re: [Boost-users] BGL - parallel/distributed

Subject: Re: [Boost-users] BGL - parallel/distributed
From: Ondrej Sluciak (ondrej.sluciak_at_[hidden])
Date: 2009-11-11 05:14:52

Thank you very much. I thought that the constructor of graph would also 
take care about initializing the mpi (if it has distributedS selector). 
Some working example in the documentation of graph_parallel would help a 
lot for sure.  Now it seems that everything works for me. Thank you once 
more.

Nick Edmonds wrote:
>> To be even more precise, it exits the code in function MPI_Comm_dup 
>> of mpi library. On linux I guess you have to have the mpi running, 
>> but I don't know how it is on windows with mpich2.
>>
>
> You never initialized the Boost.MPI environment.  See the tests, but 
> you're looking for something like:
>
> mpi::environment env(argc, argv);
>
> This basically functions like MPI_Init() plus some Boost.MPI 
> initialization.  Comm_dup fails because the communicator you're trying 
> to dup doesn't exist.
>
> -Nick
>
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>

-- 
Dipl.-Ing. Ondrej Sluciak
Room CG-04-06
Vienna University of Technology, Austria
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