Fortran: Nested submodule dependencies missing
I am encountering a race condition when building my project in parallel. Using CMake v3.7.1/3.9 and GCC 6.3 on OS X 10.12.5.
Description: Fortran project, recently added some submodule files. These generate .smod files during compilation. When building in parallel
make -j 6
Fatal Error: Can't open module file 'type_chidg@type_chidg_driver.smod' for reading at (1): No such file or directory
I do not encounter this issue in serial. Also, if I execute
make -j 6 again right after getting the
No such file error, then the build finishes successfully. Presumably because the file was actually created by one of the other processors, it just didn't happen in the right order or it didn't wait until the file was created.