Hi Reuti, 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. 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.
