One option would be to amend your mpirun command with -mca btl ^sm. This
turns off the shared memory subsystem, so you'll see some performance loss
in your collectives. However, it will reduce your /tmp usage to almost
nothing.
Others may suggest alternative solutions.
Ralph
On 3/20/07 2:32 PM,
Good Day,
I'm using Open MPI on a diskless cluster (/tmp is part of a 1m ramdisk), and
I found that after upgrading from v1.1.4 to v1.2 that jobs using np > 4 would
fail to start during MPI_Init, due to what appears to be a lack of space in
/tmp. The error output is:
-
[tpb200:32193] *
