[mvapich-discuss] PGI -pthread switch

[Jonathan Perkins]

Hello Matthew.   I think this -pthread flag might be being added from a
libtool file installed into your system.  When executing your make command
can you add V=1 to make it verbose.

Something like:
make V=1

One of the libraries being linked in when building libmpi should be
responsible.  Maybe one of the infiniband libraries or libcr if blcr is
installed on your system.

One other thing you can do to check is to do something like:
find /usr/lib64 -name '*.la' | xargs grep -l pthread

The above command should give you a potential list of offenders.  Please
let us know what you find.

On Mon, Mar 16, 2015 at 9:17 PM Matthew Russell <matthew.g.russell at gmail.com>
wrote:

> Hi,
>
> I can't seem to build mvpich2 v2.1rc2 (or rc1) due to:
>
> make[2]: Entering directory
> `/cm/shared/apps/mvapich2/pgi/64/2015/2.1rc2/mvapich2-2.1rc2'
>   GEN      lib/libmpi.la
> pgf77-Error-Unknown switch: -pthread
> make[2]: *** [lib/libmpi.la] Error 1
>
> I tried following advice in the list such as:
>
> http://mailman.cse.ohio-state.edu/pipermail/mvapich-discuss/2014-January/004779.html
>
> I removed every instance of -pthread I could find, even wrote a script to
> remove everything.  Specifically in,
>
> confdb/ltmain.sh contrib/hwloc/src/libhwloc_embedded.la
> contrib/hwloc/config/ltmain.sh contrib/hwloc/libtool limic2-0.5.6/ltmain.sh
> src/pm/hydra/mpl/confdb/ltmain.sh
> src/pm/hydra/tools/topo/hwloc/hwloc/config/ltmain.sh
> src/pm/hydra/confdb/ltmain.sh src/mpl/confdb/ltmain.sh src/mpl/libtool
> src/openpa/src/opa_primitives.h src/openpa/confdb/ltmain.sh
> src/openpa/libtool src/mpi/romio/confdb/ltmain.sh src/mpi/romio/libtool
> src/mpi/romio/libromio.la libch3affinity.la
>
> In my source directory I have:
> [matt at dena mvapich2-2.1rc2]$ grep -rnis -- -pthread *
> [matt at dena mvapich2-2.1rc2]$
>
>
> I also added -noswitcherror to FCFLAGS and FFLAGS
>
> But no matter what, I still get this error.
>
> I have no idea where it's getting this flag.
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