[mpich-discuss] 32-bit and 64-bit nodes cannot communicate with MPICH2

[Balaji, Pavan]

Ivan,

Communication on heterogeneous architectures is not supported in MPICH.

  -- Pavan

> On Aug 8, 2016, at 7:12 AM, Ivan Ivanov <ivan at vankata.tk> wrote:
> 
> Hello, I am developing a simple cluster which has both 32-bit and 64-bit nodes. For MPI communication I use MPICH2. Communication between only the 32-bit nodes works, and communication only between the 64-bit nodes works. However, I cannot make a 32-bit node communicate with a 64-bit. When I run mpirun the command hangs because when the 32-bit node sends information, the 64-bit one cannot receive it. How can I fix that?
> 
> Thank you in advance!!!
> 
> -- 
> Ivan Ivanov
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