I don't run PVFS on my laptop, but I like to make sure ROMIO's ad_pvfs2
driver still compiles (I've got a bunch of clang-uncovered warnings to
clean up, for example).
Nowadays, orangefs hooks into something called the "libc constructor" ?
and when the shared library is loaded it does a bunch of crazy stuff
in init_usrint_internal(), eventually calling PVFS_util_init_defaults()
and PVFS_util_parse_pvfstab().
That machinery kicks in even if I never ever want to think about
touching a pvfs file. I'm just carrying along the library to make sure
the PVFS stuff doesn't break the common ROMIO code.
In the old days, this stuff stayed out of the way until ROMIO called
PVFS_util_init_defaults(). when romio's done, it calls
PVFS_sys_finalize(), and I've got logic to call those routines the first
time a PVFS file is touched. Now, PVFS is getting all up in my business
all the time.
I guess the way to disable this is to --disable-shared? but mpich these
days defaults to shared libraries, and it'd be much easier if shared
libraries behaved the way I expected.
==rob
--
Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA
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