On 05/06/2012 08:28 PM, Samuel Thibault wrote:
Pavan Balaji, le Sun 06 May 2012 12:14:27 -0500, a écrit :
MPICH2 currently does not support native atomic primitives for gcc/sparc.
It needs to be built with the emulated atomics,
Mmm, really?
I just verified it with our OpenPA developer. We don't have sparc
processor atomics. On solaris we use libatomics; if not, it uses the
lock-based emulated atomics.
I've dropped sparc from the --with-atomic-primitives=no list, and it
builds fine, and OPA_USE_LOCK_BASED_PRIMITIVES does not seem to be
defined.
This might be a bug in OPA. Can you send us the log of the OPA
configure? Also, a log of the mpich2 configure will be useful. If you
are using --with-device=ch3:sock, it doesn't use OPA, so it won't matter.
-- Pavan
--
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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