On 11/09/2016 05:35 PM, 'Joaquin M Valencia Bravo' via deal.II User
Group wrote:
jomivalen@Nalia ~/cfem/trilinos/lib $ ldd libepetra.so.12.6.2 | grep mpi
libmpi_cxx.so.1 => /usr/lib/libmpi_cxx.so.1 (0x00007fb4ac8f7000)
libmpi.so.1 => /usr/lib/libmpi.so.1 (0x00007fb4ac576000)
jomivalen@Nalia ~/thesis/dealii-8.4.1/build/lib $ ldd
libdeal_II.g.so.8.4.1 | grep mpi
libmpicxx.so.12 =>
/home/jomivalen/intel/compilers_and_libraries_2016.1.150/linux/mpi/intel64/lib/libmpicxx.so.12
(0x00007f75b64c3000)
libmpi.so.12 =>
/home/jomivalen/intel/compilers_and_libraries_2016.1.150/linux/mpi/intel64/lib/libmpi.so.12
(0x00007f75b3855000)
libmpi_cxx.so.1 => /usr/lib/libmpi_cxx.so.1 (0x00007f75ae037000)
libmpi.so.1 => /usr/lib/libmpi.so.1 (0x00007f75adcb5000)
What does these results mean?. What should i do?
Since the second of your questions was already answered, let me answer
the first one (what does it mean?).
You happen to have two different MPI installations on your system. One
is apparently the one provided by Intel as part of the Intel compilers
that you have installed on your system. The other one is just a regular
MPI implementation in the standard /usr/lib directories. Apparently,
when you built Trilinos, the Trilinos cmake configurationi scripts chose
to use the regular MPI implementation. But for some reason, when you
built deal.II, the deal.II cmake configuration scripts chose the Intel MPI.
I don't know why that happens. It is possible, for example, that your
$PATH includes both /usr/bin and
/home/jomivalen/intel/compilers_and_libraries_2016.1.150/linux/mpi/intel64/bin,
and that in one directory you have an executable mpic++ and in the other
mpicxx. Usually, they are interchangeable, and we just search for the
first one we find. I assume that Trilinos does the same. If they search
in a different order, then Trilinos finds one and deal.II finds the
other one. If that's the case, then it is probably a bad idea to have
both of these MPI implementations accessible by default.
It is also possible that you loaded one module when you built Trilinos,
but another when you built deal.II.
Best
W.
--
------------------------------------------------------------------------
Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
--
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see
https://groups.google.com/d/forum/dealii?hl=en
---
You received this message because you are subscribed to the Google Groups "deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to dealii+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
