[mvapich-discuss] MVAPICH2 over uDAPL...
LEI CHAI
chai.15 at osu.edu
Wed Jul 5 11:09:22 EDT 2006
Hi,
Theoretically the path MPI2 -> uDAPL -> TCP/IP is correct but so far we are
not aware there is any uDAPL implementation over TCP/IP existing. Do you
have
such an implementation? BTW, FYI. MVAPICH2 can also be run on top of TCP/IP
directly.
Thanks.
Lei
----- Original Message -----
From: "vithaln" <vithaln at serverengines.com>
To: <panda at cse.ohio-state.edu>
Cc: <mvapich-discuss at cse.ohio-state.edu>
Sent: Sunday, July 02, 2006 10:46 PM
Subject: RE: [mvapich-discuss] MVAPICH2 over uDAPL...
>> 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 =
>> style=3D'font-size:10.0pt;
>> font-family:Arial'>Hello,<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'>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>
>>
>> </body>
>>
>> </html>
>>
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>
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>
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