Hi, Based on 'cg.c', I'm trying to develop my own Krylov solver (a projected conjugate gradient). I want to integrate this into my C++ code, where I already have an interface for PETSC which works well. However, I have the following questions :
- Where am I sensed to put my 'cg_projected.c' and 'pcgimpl.h' files? Should they go in a directory petsc/src/ksp/ksp/impls/pcg/? If so, how do I compile that? Is it simply by adding this directory to the Makefile in petsc/src/ksp/ksp/impls/? - I have also tried the basic approach of putting these two files in directories of my own C++ code and compiling. However, I have this error at the link edition: [100%] Linking CXX shared library libcoeur.so /usr/bin/ld: src/solvers/libsolvers.a(cg_projected.c.o): warning: relocation against `petscstack' in read-only section `.text' /usr/bin/ld: src/solvers/libsolvers.a(cg_projected.c.o): relocation R_X86_64_PC32 against symbol `petscstack' can not be used when making a shared object; recompilé avec -fPIC /usr/bin/ld : échec de l'édition de liens finale : bad value collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/coeur.dir/build.make:121 : libcoeur.so] Erreur 1 make[1]: *** [CMakeFiles/Makefile2:286 : CMakeFiles/coeur.dir/all] Erreur 2 make: *** [Makefile:91 : all] Erreur 2 Could you please tell me what is the right way to proceed? Thank you, Julien -- Julien Bruchon Professeur IMT - Responsable du département MPE LGF - UMR CNRS 5307 - [ https://urldefense.us/v3/__https://www.mines-stetienne.fr/lgf/__;!!G_uCfscf7eWS!dQgv-IRWC7OgdDf1X9Oew4nHSgleq2ty0AszuRPj70bBiFeCcT4RibQVAvv6FFeD081W1yY8IczRHAHopA0crg$ | https://urldefense.us/v3/__https://www.mines-stetienne.fr/lgf/__;!!G_uCfscf7eWS!dQgv-IRWC7OgdDf1X9Oew4nHSgleq2ty0AszuRPj70bBiFeCcT4RibQVAvv6FFeD081W1yY8IczRHAHopA0crg$ ] Mines Saint-Étienne, une école de l'Institut Mines-Télécom [ https://urldefense.us/v3/__https://gitlab.emse.fr/bruchon/Coeur/-/wikis/home__;!!G_uCfscf7eWS!dQgv-IRWC7OgdDf1X9Oew4nHSgleq2ty0AszuRPj70bBiFeCcT4RibQVAvv6FFeD081W1yY8IczRHAG6pz3FrQ$ | Librairie Éléments Finis Coeur ] 0477420072
