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 <[email protected]> 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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