On Apr 21, 2009, at 11:01 AM, Tsung Han Shie wrote:
> I tried to increase speed of a program with openmpi-1.1.3
Did you mean 1.1.3 or 1.3.1?
> by adding following 4 parameters into openmpi-mca-params.conf file.
If you meant 1.3.1 above, please see the following message about an
important bug in 1.3 and 1.3.1 with the use of mpi_leave_pinned:
> and then, I ran my program twice(124 processes on 31 nodes). one
> with "mpi_leave_pinned=1", another with "mpi_leave_pinned=0".
> All of them were stopped abnormally with "ctrl+c" and "killall -9
Why -- did they hang?
> After that, I couldn't start to run that program again.
What exactly was the error?
> I checked every nodes with "free -m" and I found that huge amount of
> cached memory were used in each nodes.
> Could this situation be caused by those 4 parameters? IS there
> anyway to free theme?
Can you send all the information listed here: