Dear Gilles,
  I owe you thanks for your help.  I found the problem and it is entirely my 
fault.  While I was accurate in describing my attempts and the results to you, 
the ultimate cause was that I had the homebrew installed openmpi installed. I 
had removed it, when I first encountered the hemlock problem and not being able 
to solve it, I installed the homebrew (gcc-9 and gfortran) version.  I 
encountered problems with some of the first-principles code I used using 
gfortran and hence went back to trying to compile icc fort combination with 
openmpi.  I realized this this morning and having removed the offending 
homebrew installation of openmpi, my intel compiler version of openmpi compiled 
nicely.

Sorry for your trouble.



> On Apr 16, 2020, at 11:49, Gilles Gouaillardet via users 
> <users@lists.open-mpi.org> wrote:
> 
> Paul,
> 
> My ifort eval license on OSX has expired so I cannot test myself,
> sorry about that.
> 
> It has been reported that -Wl,-force_load fixed the issue.
> Could you please double check that by
> 
> cd ompi/mpi/fortran/use-mpi-f08
> make
> rm libmpi_usempif08.la
> make V=1 libmpi_usempif08.la
> 
> assuming libtool was manually updated, you should see
> -Wl,-force_load,...la
> instead of
> -force_load,...la
> 
> if -Wl,-force_load is used but the library are not picked, then this
> is yet an other issue
> 
> 
> Cheers,
> 
> Gilles
> 
> On Wed, Apr 15, 2020 at 8:50 PM フォンスポール J via users
> <users@lists.open-mpi.org> wrote:
>> 
>> 
>> Hi Gilles,
>> 
>>  Thank you for your suggestion.  I changed the line -wl=“” as you suggested 
>> in the file “libtool” and it lead to the same linking error with hdlock. I 
>> modified libtool in the main directory as follows:
>> 
>> 
>> 
>> # ### BEGIN LIBTOOL TAG CONFIG: FC
>> 
>> # The linker used to build libraries.
>> LD="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld"
>> 
>> # How to create reloadable object files.
>> reload_flag=" -r"
>> reload_cmds="\$LTCC \$LTCFLAGS -nostdlib \$wl-r -o \$output\$reload_objs"
>> 
>> # Commands used to build an old-style archive.
>> old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"
>> 
>> # A language specific compiler.
>> CC="ifort"
>> 
>> # Is the compiler the GNU compiler?
>> with_gcc=no
>> 
>> # Compiler flag to turn off builtin functions.
>> no_builtin_flag=""
>> 
>> # Additional compiler flags for building library objects.
>> pic_flag=" -fno-common"
>> 
>> # How to pass a linker flag through the compiler.
>> wl=-Wl,
>> 
>> # Compiler flag to prevent dynamic linking.
>> link_static_flag=""
>> 
>> After running “make clean”, I ran make again and found the same error. Any 
>> ideas?
>> 
>>  FCLD     libmpi_usempif08.la
>> ld: library not found for -lhwloc
>> make[2]: *** [libmpi_usempif08.la] Error 1
>> make[1]: *** [all-recursive] Error 1
>> make: *** [all-recursive] Error 1
>> (base) Andromeda:openmpi-4.0.3 paulfons$
>>  [Restored Apr 15, 2020 14:56:10]
>> Last login: Wed Apr 15 14:56:09 on ttys005
>> 
>> 
>> 
>> On Apr 15, 2020, at 0:06, Gilles Gouaillardet via users 
>> <users@lists.open-mpi.org> wrote:
>> 
>> Paul,
>> 
>> this issue is likely the one already been reported at
>> https://github.com/open-mpi/ompi/issues/7615
>> 
>> Several workarounds are documented, feel free to try some of them and
>> report back
>> (either on GitHub or this mailing list)
>> 
>> Cheers,
>> 
>> Gilles
>> 
>> On Tue, Apr 14, 2020 at 11:18 PM フォンスポール J via users
>> <users@lists.open-mpi.org> wrote:
>> 
>> 
>> I am attempting to build the latest stable version of openmpi 
>> (openmpi-4.0.3) on Mac OS 10.15.4 using the latest intel compilers fort, 
>> icc, iclc (19.1.1.216 20200306). I am using the configuration
>> 
>> 
>> ./configure --prefix=/opt/openmpi CC=icc CXX=icpc F77=ifort FC=ifort 
>> --with-hwloc=internal --with-libevent=internal
>> 
>> My initial attempt to make opemmpi failed with the error -lhwloc not found. 
>> I then read the FAQ on the open-mpi homepage which stated that the problem 
>> often arises when compilers are mixed (they are not here). The FAQ also 
>> suggested that the options --with-hwloc=internal --with-libevent=internal 
>> would force the build process to use an internal version of hwloc. There 
>> were no other errors in the make process so presumably the hwloc internal 
>> library was successfully built. The error messages are reprinted below (they 
>> match the hwloc FAQ exactly). I don’t understand how to work around the 
>> problem however and suggestions would be welcome. I do have homebrew 
>> installed, but I would think that the explicit options to use the internal 
>> hwlock library would avoid referencing other libraries. Note the same 
>> problem occurs when configure is specified with gcc-9 and gfortran (from 
>> homebrew). Thanks four your help in advance.
>> 
>> amke
>> .
>> .
>> .
>> 
>> make[1]: Nothing to be done for `all'.
>> Making all in mpi/fortran/use-mpi-f08
>> FCLD     libmpi_usempif08.la
>> ifort: command line warning #10006: ignoring unknown option 
>> '-force_load,mod/.libs/libforce_usempif08_internal_modules_to_be_built.a'
>> ifort: command line warning #10006: ignoring unknown option 
>> '-force_load,bindings/.libs/libforce_usempif08_internal_bindings_to_be_built.a'
>> ifort: command line warning #10006: ignoring unknown option 
>> '-force_load,../../../../ompi/mpiext/pcollreq/use-mpi-f08/.libs/libmpiext_pcollreq_usempif08.a'
>> ifort: command line warning #10006: ignoring unknown option 
>> '-force_load,base/.libs/libusempif08_ccode.a'
>> ld: library not found for -lhwloc
>> make[1]: *** [libmpi_usempif08.la] Error 1
>> make: *** [all-recursive] Error 1
>> 
>> 
>> 
>> 
>> 
>> Paul Fons
>> 
>> 
>> Keio University, Faculty of Science and Technology, Department of 
>> Electronics and Information Engineering
>> 
>> 〒223-8522 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
>> Keio University Faculty of Science and Technology Yagami Campus.
>> 
>> 〒223-8522 横浜市港北区日吉3-14-1 慶應義塾大学理工学部電子工学科
>> 
>> 
>> 
>> 
>> 

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