Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: [OMPI users] setting the btl_tcp_eager_limit
From: jean-christophe.mignot_at_[hidden]
Date: 2008-04-28 13:20:32


   Hi all,
We're using a pingpong in order to measure the bandwidth and latency
available with open MPI.
In our first experiments done with the 1.1.4 version, we were using the
btl_tcp_eager_limit parameter to modify the eager limit. We've upgraded
to the 1.2.6 version and the limit parameter we fix doesn't seem to be
taken in account. The value we want to use is 67108864. The command
line is:
mpirun -np 2 -machinefile node_file -mca btl_tcp_sndbuf 4194304 -mca
btl_tcp_rcvbuf 4194304 -mca btl_tcp_eager_limit 67108864 pingpong.
Is this parameter still useful (ompi_info shows that this parameter is
still available) ?
Does anybody have any idea ?
Thanks in advance.
JC Mignot and Ludovic Hablot