Hi, Am 01.02.2014 um 15:10 schrieb Jiri Kraus:
> sorry but I don't know the details of the issue. But although the error is > reported as pgc++ not being link compatible to pgcc by OpenMPI configure the > error in the config.log is a complier error. So I don't think that this is a > linking issue. > > > When I get it right, it should be a feature of `pgc++` to be link > > compatible with `gcc`, while `pgcpp` links with `pgcc` objects. > > To my understanding C compliers like gcc and pgcc do not have the linking > issues that C++ compliers have they simply follow the ABI of the OS and do > not have name mangling issues. So most C compliers are link compatible. And > you can link C code from C++. The C++ compiler just needs to know that > something C and not C++ is used (extern "C" is used for this). > Because of function overloading, Templates and maybe other things, I am not > aware of, C++ needs name mangling to encode these information. And here pgcpp > and pgc++ implement different ABI's and name mangling schemes. pgc++ > implements the same ABI as g++ and thus is link compatible with g++. On the > other hand pgcpp implements its own ABI and is compatible with itself. thx for this clarification. -- Reuti > Jiri > > Sent from my Nexus 7, I apologize for spelling errors and auto correction > typos. > > -----Original Message----- > Date: Fri, 31 Jan 2014 22:50:40 +0100 > From: Reuti <re...@staff.uni-marburg.de> > To: Open MPI Users <us...@open-mpi.org> > Subject: Re: [OMPI users] Compiling OpenMPI with PGI pgc++ > Message-ID: <abe8d68f-f09c-4846-b696-9b514dac8...@staff.uni-marburg.de> > > Content-Type: text/plain; charset=us-ascii > > > > Hi, > > > > Am 31.01.2014 um 18:59 schrieb Jiri Kraus: > > > > > Thanks for taking a look. I just learned from PGI that this is a known bug > > that will be fixed in the 14.2 release (Februrary 2014). > > > > Will `pgc++` then link to `gcc` or `pgcc`? When I get it right, it should be > a feature of `pgc++` to be link compatible with `gcc`, while `pgcpp` links > with `pgcc` objects. > > > > -- Reuti > > > > > > > Thanks > > > > > > Jiri > > > > > >> -----Original Message----- > > >> Date: Wed, 29 Jan 2014 18:12:46 +0000 > > >> From: "Jeff Squyres (jsquyres)" <jsquy...@cisco.com> > > >> To: Open MPI Users <us...@open-mpi.org> > > >> Subject: Re: [OMPI users] Compiling OpenMPI with PGI pgc++ > > >> Message-ID: <556094df-cd27-4908-aec1-a6ad9efb6...@cisco.com> > > >> Content-Type: text/plain; charset="us-ascii" > > >> > > >> On Jan 29, 2014, at 12:35 PM, Reuti <re...@staff.uni-marburg.de> wrote: > > >> > > >>>> I don't know the difference between pgc++ and pgcpp, unfortunately. > > >>> > > >>> It's a matter of the ABI: > > >>> > > >>> http://www.pgroup.com/lit/articles/insider/v4n1a2.htm > > >>> > > >>> pgc++ uses the new ABI. > > >> > > >> > > >> Must be more than that -- this is a compile issue, not a link issue. > > >> > > >> -- > > >> Jeff Squyres > > >> jsquy...@cisco.com > > >> For corporate legal information go to: > > >> http://www.cisco.com/web/about/doing_business/legal/cri/ > > > NVIDIA GmbH, Wuerselen, Germany, Amtsgericht Aachen, HRB 8361 > > > Managing Director: Karen Theresa Burns > > > > > > ----------------------------------------------------------------------------------- > > > 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. > > > -------------------------------------------------------------------------------- > > > Sent from my Nexus 7, I apologize for spelling errors and auto correction > typos. > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
