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Since /tmp is mounted across a network and /dev/shm is (always) local,
/dev/shm seems to be the right place for shared memory transactions.
If you create temporary files using mktemp is it being created in
/dev/shm or /tmp?
On Thu, Nov 3, 2011 at 11:50 AM, Bogdan Costescu <bcostescu_at_[hidden]> wrote:
> On Thu, Nov 3, 2011 at 15:54, Blosch, Edwin L <edwin.l.blosch_at_[hidden]> wrote:
>> - /dev/shm is 12 GB and has 755 permissions
>> % ls l output:
>> drwxr-xr-x 2 root root 40 Oct 28 09:14 shm
> This is your problem: it should be something like drwxrwxrwt. It might
> depend on the distribution, f.e. the following show this to be a bug:
> and surely you can find some more on the subject with your favorite
> search engine. Another source could be a paranoid sysadmin who has
> changed the default (most likely correct) setting the distribution
> came with - not only OpenMPI but any application using shmem would be
> users mailing list