Yes, it's the DLL init function. It's not in our source code; it's put there automatically by the compiler/linker.
> On Mar 22, 2019, at 2:12 PM, Simone Atzeni <satz...@nvidia.com> wrote: > > Hi, > > I was debugging a program compiled with `mpicxx` and noticed that when the > program is being launched the `_init` function gets called multiple time, > once for each library linked. > For example, in my case I see that it gets called from all these libraries: > > _init () from libopen-pal.so.40 > _init () from libopen-rte.so.40 > _init () from libmpi.so.40 > _init () from libmpi_cxx.so.40 > > My example program uses OpenMP, so because of the call to `_init` for each > library the runtime gets initialized 4 times. > > Is this `_init` function a constructor for each one of this libraries? What > does it actually do? I couldn’t find it in the OpenMPI source. > > Thank you! > Simone > This email message is for the sole use of the intended recipient(s) and may > contain confidential information. Any unauthorized review, use, disclosure > or distribution is prohibited. If you are not the intended recipient, please > contact the sender by reply email and destroy all copies of the original > message. > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users -- Jeff Squyres jsquy...@cisco.com _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
