On Jun 5, 2009, at 2:39 PM, Jeff Squyres wrote:

FWIW, debugging OMPI is easier if you tell OMPI to slurp all the plugins into its libraries -- so there's no dlopen's and all the plugins are physically located in libmpi.so (and friends). You can get better call stacks this way from corefiles, etc.


Oops! I neglected to say that you can effect this behavior by specifying the "--disable-dlopen" flag to OMPI's configure. This turns off our internal libltdl entirely (i.e., it doesn't even build) and simultaneously slurps all of our plugins up into their relevant libraries (e.g., libmpi.so, libopen-pal.so, etc.).

--
Jeff Squyres
Cisco Systems




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