**For parallel compile "make -j"** |
- Date: 2017/01/19 12:03
- Name:
**Atsushi M. Ito**
- Dear Prof. Ozaki and everybody
I compile OpenMX on multi-core environment using the command "make -j". However, parallel compilation of Fortran source becomes error sometimes. This reason is dependency of the Fortran module because the order of the compilation of multi-files is important to link Fortran code. (And, the order of compilation does not becomes problem for C/C++ code because the link of C/C++ is performed after all compilation. But, link of Fortran is performed every the compilation of target source file.)
To solve above problem for parallel compile, I suggest modification of "makefile" as follows
#original elpa1.o: elpa1.f90 $(FC) -c elpa1.f90 solve_evp_real.o: solve_evp_real.f90 $(FC) -c solve_evp_real.f90 solve_evp_complex.o: solve_evp_complex.f90 $(FC) -c solve_evp_complex.f90
#modified elpa1.o: elpa1.f90 $(FC) -c elpa1.f90 solve_evp_real.o: solve_evp_real.f90 elpa1.o $(FC) -c solve_evp_real.f90 solve_evp_complex.o: solve_evp_complex.f90 elpa1.o $(FC) -c solve_evp_complex.f90
Just "elpa1.o" is added in dependency of solve_evp_real and solve_evp_complex.
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