I found this parameter mpool_sm_max_size in this post:

 But I was unable to spot it back into the 'ompi_info -all' output for v 1.4.3.
Is it still existing ?

 If not, which other one is replacing it, please ?

 Also, is it possible to specify to OpenMPI
which filesystem to use for the SM backing file, please ?

 Thanks in advance for any help,   Regards,   G.