[mvapich-discuss] How to configure MPD for using RDMA through Chelsio iWarp adapters

[Dhabaleswar Panda]

You need to use -np 2 to run your application on 2 processes. You need at
least two processes to run any MPI application.

For detailed usage of mpirun with MVAPICH2 1.2, take a look at
Section 5.2.1 of MVAPICH2 1.2 user guide at the following URL:

http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.2.html#x1-160005.2.1

DK


On Mon, 3 Aug 2009, Parav Pandit wrote:

> Hi Hari,
>
> I am trying mpirun_rsh.
>
> I ran (on 1.1 system-1)
> ../bin/mpirun_rsh -np 1 system-2 LD_LIBRARY_PATH=/usr/local/lib MV2_USE_IWARP_MODE=1 MV2_USE_SRQ=0 ./srtest
>
> I get following output.
>
> Process 0 on system-2
> Process 0 of 1
> 0 sending 'hello there'
>
> And it waits in MPI_Send().
>
> I have basic question. Should I be running -np = 2 or 1? I believe one.
> If I run just one process, what will run on compute node and what will run on front-node??
>
> Any other example through which I can exercise the traffic, various iWarp verbs through mvapich2?
>
> Regards,
> Parav Pandit
>
>
> --- On Mon, 8/3/09, Hari Subramoni <subramon at cse.ohio-state.edu> wrote:
>
> > From: Hari Subramoni <subramon at cse.ohio-state.edu>
> > Subject: Re: [mvapich-discuss] How to configure MPD for using RDMA through Chelsio iWarp adapters
> > To: "Parav Pandit" <paravpandit at yahoo.com>
> > Cc: mvapich-discuss at cse.ohio-state.edu
> > Date: Monday, August 3, 2009, 10:42 PM
> > Hi Parav,
> >
> > The information you need is available in our userguide at
> > the following
> > link...
> >
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.2.html#x1-180005.2.3
> >
> > The following link give information on how to launch jobs
> > using mpiexec
> >
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.2.html#x1-200005.2.5
> >
> > MVAPICH2-1.2 has support for a new job launcher -
> > mpirun_rsh, which does
> > not require you to setup mpd rings. It will also give
> > improved startup
> > performance. The following link give you detailed
> > information on how to
> > launch applications with this.
> >
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.2.html#x1-160005.2.1
> >
> > Let us know if you have any more questions.
> >
> > Thx,
> > Hari.
> >
> > On Mon, 3 Aug 2009, Parav Pandit wrote:
> >
> > > Hi,
> > >
> > > I am using MVAPICH-2 version 1.2p1 as part of OFED-1.4
> > with #2 cxgb3 Chelsio iWarp cards.
> > >
> > > I am trying to run srtest.c using mpiexec between
> > these two adapters.
> > > One as sender, other as receiver.
> > > I am unable to configure MPD daemon. Can someone
> > suggest me simplest way to configure MPD and how to run
> > srtest using mpiexec?
> > > I want to have one as Front-Node other as
> > Compute-Node.
> > >
> > > I have done following configuration.
> > > System-1
> > > echo 192.168.1.1 > /etc/mv2.conf
> > >
> > > System-2
> > > echo 192.168.1.2 > /etc/mv2.conf
> > >
> > > Do I have to start MPD on both systems first, what
> > should be the parameters to it?
> > >
> > > Regards,
> > > Parav Pandit
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > mvapich-discuss mailing list
> > > mvapich-discuss at cse.ohio-state.edu
> > > http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
> > >
> >
> >
>
>
>
>
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