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2 Коммитов

Автор SHA1 Сообщение Дата
Brian Barrett
6c3f986d79 * Fix issue with duplicate symbol for the initialize hook due to it existing in both libmpi and libopen-pal by removing the one for libopen-pal. This won't work if we eventually need registration caching in opal/orte, but I'm hoping that by that point, OFED will have gotten off its butt and properly integrated ummunotify into the verbs layer so that this code can go away.
At the same time, fix a minor issue where the init hook was being called twice, once by the libc malloc and once by our malloc by removing the call from our malloc.

This commit was SVN r28202.
2013-03-21 23:05:54 +00:00
Jeff Squyres
c7c3de87f5 Add ummunotify support to Open MPI. See
http://marc.info/?l=linux-mm-commits&m=127352503417787&w=2 for more
details.

 * Remove the ptmalloc memory component; replace it with a new "linux"
   memory component.
 * The linux memory component will conditionally compile in support
   for ummunotify.  At run-time, if it has ummunotify support and
   finds run-time support for ummunotify (i.e., /dev/ummunotify), it
   uses it.  If not, it tries to use ptmalloc via the glibc memory
   hooks. 
 * Add some more API functions to the memory framework to accomodate
   the ummunotify model (i.e., poll to see if memory has "changed").
 * Add appropriate calls in the rcache to the new memory APIs to see
   if memory has changed, and to react accordingly.
 * Add a few comments in the openib BTL to indicate why we don't need
   to notify the OPAL memory framework about specific instances of
   registered memory.
 * Add dummy API calls in the solaris malloc component (since it
   doesn't have polling/"did memory change" support).

This commit was SVN r23113.
2010-05-11 21:43:19 +00:00