Note that if you run the lamclean command before shutting down your LAM
universe, these dead processes and claimed semaphores should also be
cleaned up.
On Jan 26, 2005, at 1:50 AM, Helge Avlesen wrote:
> Brian Barrett <brbarret_at_[hidden]> writes:
>
> | Semaphore support is critical for the usysv and sysv RPIs.
> Otherwise,
> | LAM will happily run without semaphores. Since it sounds like you
> | desire shared memory transport, this may be a problem for you. If
> you
> | could send the config.log file from the LAM configure process, that
> | would probably provide the details needed to figure out why our
> | Semaphore test failed on your platform.
>
>
> we found the bug; the ipcs program revealed that some defect/hanging
> processes had used all available semaphores on the master node of the
> cluster... after some thorough cleaning with clearipc things now work
> again!
>
> Helge
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--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
|
