Charm++ parallel programming system

[Evan Ramos <evan AT hpccharm.com>]

Hi Jonathan,

I took a quick look at your test case and I believe the issue is that child.h contains the line `#include "child.C"`. If I remove that line and uncomment `#include "child.def.h"` in child.C, I am able to compile and link the program successfully.

Regards,

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Evan A. Ramos

Software Engineer

Charmworks, Inc.

On Thu, Jan 17, 2019 at 5:05 PM Jonathan Hoelzel <hoelzel2 AT illinois.edu> wrote:

Thanks for responding so quickly!  The code in the zip folder attached to my first email exhibits the described problem when compiling (at least on my computer).  I have attached another folder with a more minimized case.  This should exhibit the problem when compiling once the CHARMDIR variable in the Makefile is set appropriately.  Thanks again!

On Thu, Jan 17, 2019 at 1:17 PM Evan Ramos <evan AT hpccharm.com> wrote:

Hi Jonathan,

Could you post a minimal test case that exhibits the problem? We could diagnose the issue from there.

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Evan Ramos

Software Engineer

Charmworks, Inc.

On Wed, Jan 16, 2019, 12:17 PM Jonathan Hoelzel <hoelzel2 AT illinois.edu wrote:

Hello,

I am working on a project using Charm++, and I have run into a compilation issue when trying to implement a templated chare.  I have attached a zip file with some example code that causes this problem.

Specifically, I get the following error when linking:

main.o: In function `_registermain()':

main.C:(.text+0x562): undefined reference to `_registerchild()'

collect2: error: ld returned 1 exit status

Looking in the child.def.h file, the '_registerchild()' method is only defined if CK_TEMPLATES_ONLY is not set when including child.def.h file.   However, if I include child.def.h again without setting CK_TEMPLATES_ONLY, then I get a similar error saying "multiple definition of 'registerchild()'".  I have been unable to work this out myself, so some help would be great.

Thanks,

Jonathan Hoelzel

Computer Science | College of Engineering

University of Illinois at Urbana-Champaign

hoelzel2 AT illinois.edu

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Jonathan Hoelzel

Computer Science | College of Engineering

University of Illinois at Urbana-Champaign

hoelzel2 AT illinois.edu