[mpich-discuss] Installation on Blue Gene/Q

[Sebastian Rinke]

Problem solved. 
I missed to enable configure’s cross compilation mode
which prevents it from running code on the build machine.

Sebastian 

On 27 Mar 2017, at 00:25, Sebastian Rinke <rinke at cs.tu-darmstadt.de> wrote:

> Dear all,
> 
> We are trying to install MPICH 3.1.4 on Blue Gene/Q and 
> encounter problems during configure.
> 
> Unfortunately, we are restricted to using GCC 4.8.{1, 3, 5}.
> The error during configure is:
> 
> […]
> configure:53856: WARNING: Unable to determine the size of MPI_Offset
> configure:53863: result: unknown
> configure:54000: error: Unable to convert MPI_SIZEOF_OFFSET to a hex string.  This is either because we are building on a very strange platform or there is a bug somewhere in configure.
> 
> GCC 4.4.7 works, however, it lacks C++11 support which our code
> relies on.
> 
> Our goal is to use MPI_Rget with C++11 on Blue Gene/Q.
> 
> Is there a way to make the configure work so that we can make
> MPICH-3.1.4 compile?
> 
> We would be very grateful for any help on this issue.
> 
> Sebastian
> 
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