Re: [OMPI users] users Digest, Vol 1674, Issue 1

[lyb]

Thanks for your answer, but I test with MPICH2, it doesn't have this 
fault. Why?
Message: 9
Date: Wed, 1 Sep 2010 20:14:44 -0600
From: Ralph Castain<r...@open-mpi.org>
Subject: Re: [OMPI users] MPI_Comm_accept and MPI_Comm_connect both
        use 100%        one cpu core. Is it a bug?
To: Open MPI Users<us...@open-mpi.org>
Message-ID:<4e4bc153-b4e3-43e2-b980-904dabe78...@open-mpi.org>
Content-Type: text/plain; charset="us-ascii"
It's not a bug - that is normal behavior. The processes are polling hard to 
establish the connections as quickly as possible.


On Sep 1, 2010, at 7:24 PM, lyb wrote:

   
>  Hi, All,
>  
>  I tested two sample applications on Windows 2003 Server, one use MPI_Comm_accept and other use MPI_Comm_connect,
>  when run into MPI_Comm_accept or MPI_Comm_connect, the application use 100% 
one cpu core.  Is it a bug or some wrong?
>  
>  I tested with three version including Version 1.4 (stable), Version 1.5 (prerelease) and trunk 23706 version.
>  
>  ...
>  MPI_Open_port(MPI_INFO_NULL, port);
>  MPI_Comm_accept( port, MPI_INFO_NULL, 0, MPI_COMM_WORLD,&client );
>  ...
>  
>  ...
>  MPI_Comm_connect( port, MPI_INFO_NULL, 0, MPI_COMM_WORLD,&server );
>  ...
>  
>  thanks a lot.
>  
>  lyb
>  
>  
>  
>  
>  
>  _______________________________________________
>  users mailing list
>  us...@open-mpi.org
>  http://www.open-mpi.org/mailman/listinfo.cgi/users
     
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