[mvapich-discuss] MVAPICH2 over uDAPL...
vithaln
vithaln at serverengines.com
Sun Jul 2 23:46:46 EDT 2006
> 2. My requirement is to run MPI programs on two different machines
> exchanging data across in the network. Is there any document that gives
info
> on how to go about this or did any one did this earlier?
>It depends on how you plan to exchange the data and what is the
>underlying network and interface for these two different machines. You
>will find all available options (networks and interfaces) available
>options with MVAPICH2.
I am assuming the following path MPI2 -> uDAPL -> TCP/IP on LAN.
I have two linux systems connected via a HUB (on my corporate network).
Wanted to run mpi-exec to initiate some kind of data transfer(probably some
file transfers.. may be ftp?!) across the two systems. I wanted to study the
performance impact on employing uDAPL over TCP (ideally RDMA over TCP) as
the transport interface. Let me know if my understanding and the attempt are
on the wrong foot!
Some thing as given below
---------------------------
| Application for File XFR|
---------------------------
|
-----------
| Udapl |
-----------
|
User Space |
-----------------------------
Kernel Space |
|
-----------
| TCP |
-----------
|
-----------------------------
NIC H/w |
HARDWARE
|
---------------------------
N/W |
LAN
I know that, RDMA over TCP brings in a number of issues pertaining to
restricting TCP to meet RDMA requirements. But if uDAPL is successful, I
believe those issues are overcome!
Thanks and Rgrds
Vithal
-----Original Message-----
From: Dhabaleswar Panda [mailto:panda at cse.ohio-state.edu]
Sent: Friday, June 30, 2006 10:12 PM
To: vithaln
Cc: mvapich-discuss at cse.ohio-state.edu
Subject: Re: [mvapich-discuss] MVAPICH2 over uDAPL...
Hi,
Thanks for your note.
> I could not find any information in user guide regarding running mvapich2
on
> uDAPL. The guide I am using is mpich2-doc-user.pdf downloaded from
> sourceforge.net.
>
> However, I could find the udapl script in MVAPICH2 directory. Could some
one
> point me to the write doc which details how to run mpi programs/tests on
> uDAPL?
It looks like you are looking for the MVAPICH2 user guide at the wrong
place. The above-mentioned user guide is for MPICH2 not MVAPICH2.
It is accessible from MVAPICH2 web page (either from the FAQ link or
from the Download link). The URL is:
http://nowlab.cse.ohio-state.edu/projects/mpi-iba/download-mvapich2/mvapich2
_user_guide.html
This user guide contains in-depth instructions on how to install and
use MVAPICH2 with uDAPL.
> Also, got few questions
>
> 1. Can we run the MPI programs on standalone linux system ?
Sure.
> 2. My requirement is to run MPI programs on two different machines
> exchanging data across in the network. Is there any document that gives
info
> on how to go about this or did any one did this earlier?
It depends on how you plan to exchange the data and what is the
underlying network and interface for these two different machines. You
will find all available options (networks and interfaces) available
options with MVAPICH2.
DK
>
>
> Rgrds
>
> Vithal
>
>
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> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
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>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'><o:p> </o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'>I could not find any information in user guide =
> regarding
> running mvapich2 on uDAPL. The guide I am using is mpich2-doc-user.pdf
> downloaded from sourceforge.net.<o:p></o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'>However, I could find the udapl script in MVAPICH2
> directory. Could some one point me to the write doc which details how to =
> run mpi
> programs/tests on uDAPL?<o:p></o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'><o:p> </o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'>Also, got few questions<o:p></o:p></span></font></p>
>
> <ol style=3D'margin-top:0in' start=3D1 type=3D1>
> <li class=3DMsoNormal style=3D'mso-list:l0 level1 lfo1'><font size=3D2 =
> face=3DArial><span
> style=3D'font-size:10.0pt;font-family:Arial'>Can we run the MPI =
> programs on
> standalone linux system ?<o:p></o:p></span></font></li>
> <li class=3DMsoNormal style=3D'mso-list:l0 level1 lfo1'><font size=3D2 =
> face=3DArial><span
> style=3D'font-size:10.0pt;font-family:Arial'>My requirement is to =
> run MPI
> programs on two different machines exchanging data across in the =
> network.
> Is there any document that gives info on how to go about this or =
> did any
> one did this earlier?<o:p></o:p></span></font></li>
> </ol>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'><o:p> </o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'>Rgrds<o:p></o:p></span></font></p>
>
> <p class=3DMsoNormal><font size=3D2 face=3DArial><span =
> style=3D'font-size:10.0pt;
> font-family:Arial'>Vithal<o:p></o:p></span></font></p>
>
> </div>
>
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