On 10/24/2010 11:42 AM, Lucas Nussbaum wrote:
On 23/10/10 at 12:51 -0500, Pavan Balaji wrote:
On 10/23/2010 12:40 PM, Lucas Nussbaum wrote:
On 11/11/09 at 10:15 -0600, Pavan Balaji wrote:
We had a short discussion on this within the MPICH group. We believe
that we will be able to modify the code such that enabling it at
configure time should not add any additional performance overhead
for applications that don't need this support. So starting
mpich2-1.3, you should be able to configure it in by default.
Hi Pavan,
What's the conclusion on this? Should I enable checkpointing by default?
(Context: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555714)
There will be some overhead in enabling this, but I think that
should be minimal. I'm checking with our developer who worked on
this. I'll get back to you.
Apparently, if you enable it at build time, it then fails at runtime if
blcr support is not present in the kernel. So I've left it disabled for
now.
Yikes! That's a bug. We'll fix it.
-- Pavan
--
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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