Hi
I have two Beowulf clusters (both Ubuntu 10.10, one is OpenMPI, one is MPICH2).
They run separately in their local network environment.I know there is a way to
integrate them through Internet, presumably by Grid software,
I guess. Is there any tutorial to do this?
Hi,
I tried executing those tests with the other devices like tcp instead
of ib with the same open-mpi 1.4.3.. It went fine but it took time to
execute, when i tried to execute the same test on the customized OFED
,tests are hanging at the same message size..
Can u please tel me, what could
Aah...
So when openMPI is compile with OFED, and run on a Infiniband/RoCE devices,
I would use the mpi would simply direct to ofed to do point to point calls
in the ofed way?
>
> More specifically: all things being equal, you don't care which is used.
> You just want your message to get to the re
Hi Shaandar,
this is not a simple question! If you want to bring your cluster into
the Grid, you first have to decide which Grid, because the different
Grids use different Grid softwares. Having taken this decision, I would
recommend to look onto the wen page of this Grid community, usually yo
Well, as Jeff says, looks like its to do with the 1 sided comm.
But the reason why I said was because of what I experienced a couple of
months ago: When I had a Myri-10G and an Intel gigabit ethernet card lying
around, I wanted to test the kernel bypass using open-mx stack and I ran
the osu benchm
What Jeff means is that because u didn't have echo "mpirun...>>outfile" but
echo mpirun>>outfile ,
you were piping the output to the outfile instead of stdout.
Sent from my iPhone
On Feb 29, 2012, at 8:44 PM, Syed Ahsan Ali wrote:
> Sorry Jeff I couldn't get you point.
>
> On Wed, Feb 2
Thank you for your fast response.
I am launching 200 light processes in two computers with 8 cores each
one (Intel i7 processor). They are dedicated and are interconnected
through a point-to-point Gigabit Ethernet link.
I read about oversubscribing nodes in the open-mpi documentation, and
f
Hi Nathan,
I tried building on an internal login node, and it did not fail at the
previous point. But, after compiling for a very long time, it failed
while building libmpi.la, with a multiple definition error:
--
...
CC mpiext/mpiext.lo
CC mpi/f77/base/mpi_f77_base_libmpi_f77_
You need to update your source code - this was identified and fixed on Wed.
Unfortunately, our trunk is a developer's environment. While we try hard to
keep it fully functional, bugs do occasionally work their way into the code.
On Mar 1, 2012, at 1:37 AM, Abhinav Sarje wrote:
> Hi Nathan,
>
>
Wow - with that heavy an oversubscription, your performance experience
certainly is reasonable. Not much you can do about it except reduce the
oversubscription, either by increasing the number of computers or reducing the
number of processes.
On Mar 1, 2012, at 1:33 AM, Pinero, Pedro_jose wrot
I am able to run the application with LSF now, it strange because I wasn't
able to trace any error.
On Thu, Mar 1, 2012 at 11:34 AM, PukkiMonkey wrote:
> What Jeff means is that because u didn't have echo "mpirun...>>outfile"
> but
> echo mpirun>>outfile ,
> you were piping the output to the
On Mar 1, 2012, at 3:33 AM, Pinero, Pedro_jose wrote:
> I am launching 200 light processes in two computers with 8 cores each one
> (Intel i7 processor). They are dedicated and are interconnected through a
> point-to-point Gigabit Ethernet link.
>
> I read about oversubscribing nodes in the op
I would just ignore these tests:
1. The use of MPI one-sided functionality is extremely rare out in the real
world.
2. Brian said there were probably bugs in Open MPI's implementation of the MPI
one-sided functionality itself, and he's in the middle of re-writing the
one-sided functionality any
On Mar 1, 2012, at 1:17 AM, Jingcha Joba wrote:
> Aah...
> So when openMPI is compile with OFED, and run on a Infiniband/RoCE devices, I
> would use the mpi would simply direct to ofed to do point to point calls in
> the ofed way?
I'm not quite sure how to parse that. :-)
The openib BTL uses
You can use CyberIntegrator (http://isda.ncsa.uiuc.edu/cyberintegrator/)
developed by NCSA, or UNICORE (http://www.unicore.eu/) developed by Julich to
integrate resources.
best,
madel
From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf
Of Shaandar Nyamtulga
Sent: Thu
Thanks Ralph. That did help, but only till the next hurdle. Now the
build fails at the following point with an 'undefined reference':
---
Making all in tools/ompi_info
make[2]: Entering directory
`/global/u1/a/asarje/hopper/openmpi-dev-trunk/build/ompi/tools/ompi_info'
CC ompi_info.o
Did you do a full autogen / configure / make clean / make all ?
On Mar 1, 2012, at 8:53 AM, Abhinav Sarje wrote:
> Thanks Ralph. That did help, but only till the next hurdle. Now the
> build fails at the following point with an 'undefined reference':
> ---
> Making all in tools/ompi_info
Dear all,
I apologize in advance if this is not the right list to post this. I
am a newcomer and please let me know if I should be sending this to
another list.
I program MPI trying to do HPC parallel programs. In particular I
wrote a parallel code
for molecular dynamics simulations. The program s
Is it really the rank that matters, or where the rank is located? For example,
you could leave the ranks as assigned by the cartesian topology, but then map
them so that ranks 0 and 2 share a node, 1 and 3 share a node, etc.
Is that what you are trying to achieve?
On Mar 1, 2012, at 11:57 AM,
mpirun -np 4 --host node1,node2,node1,node2 ./app
Is this what you want?
On Thu, Mar 1, 2012 at 10:57 AM, Claudio Pastorino <
claudio.pastor...@gmail.com> wrote:
> Dear all,
> I apologize in advance if this is not the right list to post this. I
> am a newcomer and please let me know if I should
Hi, thanks for the answer.
You are right is not the rank what matters but how do I arrange
the physical procs in the cartesian topology. I don't care about the label.
So, how do I achieve that?
Regards,
Claudio
2012/3/1, Ralph Castain :
> Is it really the rank that matters, or where the rank i
Probably yes,
do I have a more systematic way?
Thanks
Claudio
2012/3/1, Jingcha Joba :
> mpirun -np 4 --host node1,node2,node1,node2 ./app
>
> Is this what you want?
>
> On Thu, Mar 1, 2012 at 10:57 AM, Claudio Pastorino <
> claudio.pastor...@gmail.com> wrote:
>
>> Dear all,
>> I apologize in adv
Hi Claudio
Check 'man mpirun'.
You will find examples of the
'-byslot', '-bynode', '-loadbalance', and rankfile options,
which allow some control of how ranks are mapped into processors/cores.
I hope this helps,
Gus Correa
On Mar 1, 2012, at 2:34 PM, Claudio Pastorino wrote:
> Hi, thanks for
Also the sequential mapper may be of help - allows you to specify the node each
rank is to be place on, one line/rank.
On Mar 1, 2012, at 12:40 PM, Gustavo Correa wrote:
> Hi Claudio
>
> Check 'man mpirun'.
> You will find examples of the
> '-byslot', '-bynode', '-loadbalance', and rankfile
Hi Jeff,
Here I made a developer build, and then got the following message
with plm_base_verbose:
>>>
[gulftown:28340] mca: base: components_open: Looking for plm
components
[gulftown:28340] mca: base: components_open: opening plm
components
[gulftown:28340] mca: base: components_open: found l
What did this command line look like? Can you provide the configure line as
well?
On Mar 1, 2012, at 12:46 PM, Yiguang Yan wrote:
> Hi Jeff,
>
> Here I made a developer build, and then got the following message
> with plm_base_verbose:
>
> [gulftown:28340] mca: base: components_open: Lo
Hi Ralph,
Thanks, here is what I did as suggested by Jeff:
> What did this command line look like? Can you provide the configure line as
> well?
As in my previous post, the script as following:
(1) debug messages:
>>>
yiguang@gulftown testdmp]$ ./test.bash
[gulftown:28340] mca: base: componen
I see the problem.
It looks like the use of the app context file is triggering different behavior,
and that behavior is erasing the use of --prefix. If I replace the app context
file with a complete command line, it works and the --prefix behavior is
observed.
Specifically:
$mpirunfile $mcap
Actually, I should say that I discovered that if you put --prefix on each line
of the app context file, then the first case (running the app context file)
works fine; it adheres to the --prefix behavior.
Ralph: is this intended behavior? (I don't know if I have an opinion either
way)
On Mar
Hi,
I am not sure if this is the right place to post this question. If you know
where it is appropriate, please let me know.
I need to run application that launches 200 processes with the command:
1)orterun --prefix ./ -np 200 -wd ./ -host
hostname1.domain.com,1,2,3,4,5,6,7,8,9,.,196,
> Actually, I should say that I discovered that if you put --prefix on each
> line of the app context file, then the first
> case (running the app context file) works fine; it adheres to the --prefix
> behavior.
Yes, I confirmed this on our cluster. It works with --prefix on each line of
the
I don't know - I didn't write the app file code, and I've never seen anything
defining its behavior. So I guess you could say it is intended - or not! :-/
On Mar 1, 2012, at 2:53 PM, Jeffrey Squyres wrote:
> Actually, I should say that I discovered that if you put --prefix on each
> line of th
You might try putting that list of hosts in a hostfile instead of on the cmd
line - you may be hitting some limits there.
I also don't believe that you can add an orted in that manner - orterun will
have no idea how it got there and is likely to abort.
On Mar 1, 2012, at 3:20 PM, Jianzhang He w
yes, I did a full autogen, configure, make clean and make all
On Thu, Mar 1, 2012 at 10:03 PM, Jeffrey Squyres wrote:
> Did you do a full autogen / configure / make clean / make all ?
>
>
> On Mar 1, 2012, at 8:53 AM, Abhinav Sarje wrote:
>
>> Thanks Ralph. That did help, but only till the next
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