Hello Benton,
Thanks for your notice.
But I am a novice for the parallel computation, I often use Fortran to
compile my program, now I want to use the Parallel, can you give me some help
how to begin?
PS: I learned about OPEN MPI is the choice for my question solution. am I
right?
best
Hi Tohiko
OpenFabrics network a.k.a. Infiniband a.k.a. IB.
To check if the compute nodes have IB interfaces, try:
lspci [and search the output for Infinband]
To see if the IB interface is configured try:
ifconfig -a [and search the output for ib0, ib1, or similar]
To check if the OFED module
Hello,
I'm trying to run my application on different nodes; each with a different
path to OpenMPI libraries and binaries.
According to the documentation I can set '-prefix' on a per-context basis,
so I can set '-prefix' differently
for each node, but I wasn't able to do it and I didn't find an exa
Sorry for the noob question, but how do I check my network type and if OFED
service is running correctly or not? And how do I run it
Thank you,
On Tue, Feb 14, 2012 at 2:14 PM, Jeff Squyres wrote:
> Do you have an OpenFabrics-based network? (e.g., InfiniBand or iWarp)
>
> If so, this error mes
[Apologies if you got multiple copies of this email.]
EuroMPI 2012 CALL FOR PAPERS
Recent Advances in Message Passing Interface.
19th European MPI Users' Group Meeting
Austrian Academy of Sciences, Vienna, Austria, September 23-26, 2012
www.eurompi2012.org
BACKGROUND AND TOPICS
EuroMPI is th
In trying to debug an MPI_Waitall hang on a remote
node, I created a simple code to test.
If we run the simple code below on 2 nodes on a local
machine, we send the number 1 and receive number 1 back.
If we run the same code on a local node and a remote node,
we send number 1 but get 32767 back.
Yes, in short, I start a c-shell script from bash command line, in
which I mpirun another c-shell script which start the computing
process. The only OMPI related envars are PATH and
LD_LIBRARY_PATH. Any other OPMI envars I should set?
Guess I am confused. It was my impression that you mpirun a script that
actually starts your process. Yes?
Sent from my iPad
On Feb 14, 2012, at 7:32 AM, ya...@adina.com wrote:
> Hi Ralph,
>
> Could you please tell me what OMPI envars are broken? or what
> OMPI envars should be there for OMPI
Hi Ralph,
Could you please tell me what OMPI envars are broken? or what
OMPI envars should be there for OMPI to work properly?
Although I start my c-shell script from a bash command line(not
sure if this matters), I only add Open MPI executable and lib path to
$PATH and $LD_LIBRARY_PATH, no ot
It looks like your script is stripping away the OMPI envars. That will break
the job. Can you look at the script and see why it does that?
Sent from my iPad
On Feb 14, 2012, at 6:44 AM, ya...@adina.com wrote:
> Hi Jeff,
>
> The command "env | grep OMPI" output nothing but a blank line
> from
Hi Jeff,
The command "env | grep OMPI" output nothing but a blank line
from my script. Anything I should set for mpirun?
On the other hand, you may get reminded that I found you
discussed some similar issue with Jonathan Dursi. The difference
is that when I tried with --mca btl_sm_num_fifos #(
In trying to debug the MPI_Waitall hang on the remote
node, I created a simple code to test.
If we run the simple code below on 2 nodes on a local
machine, we send the number 1 and receive number 1 back.
If we run the same code on a local node and a remote node,
we send number 1 but get 32767 ba
OK, I get it running if I specify /usr/local/bin/mpiexec instead of just
mpiexec.
Now, the program hangs at the first MPI_Waitall on the remote node.
The program runs just fine if both nodes are on the same machine.
Any ideas how to debug this ?
Many Thanks
Richard
- Original Message -
Do you have an OpenFabrics-based network? (e.g., InfiniBand or iWarp)
If so, this error message usually means that OFED is either installed
incorrectly, or is not running properly (e.g., its services didn't get started
properly upon boot).
If you don't have an OpenFabrics-based network, then i
Make sure that your LD_LIBRARY_PATH is being set in your shell startup files
for *non-interactive logins*.
For example, ensure that LD_LIBRARY_PATH is set properly, even in this case:
-
ssh some-other-node env | grep LD_LIBRARY_PATH
-
(note that this is different than "ssh some-other-no
On Feb 13, 2012, at 2:26 PM, ya...@adina.com wrote:
> I tried to run the same test of ring_c from standard examples in
> Open MPI 1.4.3 distribution. If I ran as you described from the
> command line, it worked without any problem with sm btl
> included(with --mca btl self,sm,openib). However,
Jeff,
I wiped out all versions of openmpi on all the nodes including the distro
installed version.
I reinstalled version 1.4.4 on all nodes.
I now get the error that libopen-rte.so.0 cannot be found when running mpiexec
across
different nodes, even though the LD_LIBRARY_PATH for all nodes point
Greetings,
Until today I was running my openmpi applications with no errors/warnings
Today I restarted my computer (possibly after an automatic openmpi update)
and got these warnings when
running my program
[tohiko@kw12614 1d]$ mpirun -x LD_LIBRARY_PATH -hostfile hosts -np 10 hello
librdmacm: coul
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