Hui Zhou

@wkliao What are the differences between `src/mpi/romio/test` and `test/mpi/io`? Could we merge or synchronize them?

> To me, test programs in test/mpi/io can be moved to src/mpi/romio/test. If we do that, then our test suite have to treat io tests differently from the rest of...

@wkliao Are the set of PRs you just created all parts of split from the original "standalone" PR? Could you refresh me how the standalone ROMIO supposed to work? Is...

> I suggest the other way around. MPICH's autogen.sh copies the test programs > from ROMIO into MPICH. Here is my argument. ROMIO can become a stand > alone module...

> If ROMIO is made stand alone, one should be able to run "make dist" to create > a tar ball that can be built stand alone outside of MPICH....

> My goal is to make ROMIO stand-alone (self-contain). I think I am fine if you insist to maintain the `io` tests inside ROMIO tree. It is more important to...

> Once ROMIO becomes stand alone, one can simply run configure command like > any other autoconf software. Option such as "--enable-standalone" is not necessary. > In #4008 I mentioned...

> For MPL, ROMIO can be built with or without it. Note > ROMIO includes configure option `--with-mpl-prefix[=DIR]` It doesn't make sense to add some dependency without gaining something. What...

> For weak symbol issue, I assume you are referring to #4689. > Maybe your post should be there. Note my PR is not skip the build > of entire...

> I don't know why you keep emphasizing the weak symbol issue. Can you > point out which of my PRs is causing this problem? Because the way you described...