Dear users, I think this is some kind of bug, but I would like to post here to hear if this is true. I have only tested this using the fortran compiler and fortran version of openmpi/hwloc.
My setup:
intel compiler:
composer_xe_2013.3.163
ifort --version:
13.1.1 20130313
I am compiling using these flags:
icc/ifort -m64 -fPIC -O2 -xHost -prec-div -prec-sqrt -opt-prefetch
My test code is very basic (compiled using mpif90 -o hw hw.f90):
##### hw.f90
program hello_world
use mpi
integer :: rank, size, ierror, tag, status(MPI_STATUS_SIZE)
call MPI_INIT(ierror)
call MPI_COMM_SIZE(MPI_COMM_WORLD, size, ierror)
call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierror)
print*, 'node', rank, ' of ',size
call MPI_FINALIZE(ierror)
end program hello_world
##### hw.f90
I compiled these versions:
A) hwloc-1.8.1 and openmpi-1.6.5
B) hwloc-1.9 and openmpi-1.6.5
C) hwloc-1.8.1 and openmpi-1.8
D) hwloc-1.9 and openmpi-1.8
Besides the --prefix flag I did this:
For all compilations of hwloc I compiled using these configure settings:
--disable-{libnuma,opencl,cuda,nvml,gv} --enable-static
For all compilations of openmpi I compiled using these configure settings:
--with-hwloc=<placement of equivalent hwloc installation>
A and C both terminate perfectly. No errors.
B and D both terminate with errors. I have attached the error message for
both instances.
It seems related to this:
../../orte/util/nidmap.c at line 106
which does something with a hwloc topography.
I have also tried option D with the GNU compiler:
gfortran/gcc --version
4.7.2-5
In this case I don't get any errors. Hence my suspicion lies entirely on
intel compiler and hwloc-1.9. :)
Note, I can run some of the utilities installed by hwloc without problems.
However, I am in no way experienced in debugging hwloc so I might be doing
something wrong here?
Also, I am not sure whether this is related to openmpi or hwloc, however,
as I only found the error dependent on the hwloc version I suspected this
might be the correct place.
Please advice me if you need additional information.
PS: I could not find anything on the bug-tracker.
--
Kind regards Nick
hwloc-1.9-openmpi-1.6.5
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hwloc-1.9-openmpi-1.8
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