[petsc-users] CG+GAMG convergence issues in GHEP Krylov-Schur for some MPI runs

[Jose E. Roman]

In MacOSX you have to keep the *.o files, and not delete them.
With PETSc's makefiles, this can be done easily with e.g.
$ make ex1 RM=echo

Jose


> El 3/11/2015, a las 19:46, Denis Davydov <davydden at gmail.com> escribió:
> 
> Jose,
> 
> Even when I have PETSc --with-debugging=1 and SLEPc picks it up during configure, 
> i don’t seem to have debug symbols in resulting SLEPc lib (make stage):
> 
> warning: no debug symbols in executable (-arch x86_64)
> 
> Same when starting a debugger:
> warning: (x86_64) /usr/local/opt/slepc/real/lib/libslepc.3.6.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
> 
> C/Fortran flags seems to have debug flags:
> 
> Using C/C++ linker: /usr/local/bin/mpicc
> Using C/C++ flags: -Wl,-multiply_defined,suppress -Wl,-multiply_defined -Wl,suppress -Wl,-commons,use_dylibs -Wl,-search_paths_first  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -g3 -O0
> Using Fortran linker: /usr/local/bin/mpif90
> Using Fortran flags: -Wl,-multiply_defined,suppress -Wl,-multiply_defined -Wl,suppress -Wl,-commons,use_dylibs -Wl,-search_paths_first  -fPIC -Wall -Wno-unused-variable -ffree-line-length-0 -Wno-unused-dummy-argument -g -O0
> 
> Any ideas?
> 
> Kind regards,
> Denis