I've received SIGSEGV a few times for different reasons with OpenMPI Java
and one of the most common reasons was the ulimit settings. You might want
to look at -l (max lock memory) -u (max user processes), -n (open files).
Here's a snapshot of what we use in our clusters running OpenMPI and Java
Hello Gilles,
I tried you code and it crashes after 3-15 iterations (see (1)). It is
always the same error (only the "94" varies).
Meanwhile I think Java and MPI use the same memory because when I delete
the hash-call, the program runs sometimes more than 9k iterations.
When it crashes, there
Gundram,
can you please provide more information on your environment :
- configure command line
- OS
- memory available
- ulimit -a
- number of nodes
- number of tasks used
- interconnect used (if any)
- batch manager (if any)
Cheers,
Gilles
On 7/7/2016 4:17 PM, Gundram Leifert wrot
Hi all,
I want to know if there is “class diagram” for OpenMPI code base that shows
existing classes and dependencies/associations. Are there any available tools
to extract and visualize this information.
—
Murali
Hello Gundram,
I was also not able to reproduce the issue on my computer (OS X El Capitan).
I ran both your code and the one provided by Gilles with no issues.
I can try it on my Ubuntu machine when I get home.
-Nathan
On Thu, Jul 7, 2016 at 2:05 AM, Gilles Gouaillardet
wrote:
> Gundram,
>
>
Hi,
my name is Andrea and I am a new openMPI user.
I have a code compiled with:
intel/16.0.3
openmpi/1.6.5
--> When I try to run my code with: mpirun -n N ./code.exe
a) the code correctly runs and gives results if N<=25
b) the code gives the following error if N>25:
mpirun
Try running one of the OMPI example codes and verify that things run correctly
if N > 25. I suspect you have an error in your code that causes it to fail if
its rank is > 25.
> On Jul 7, 2016, at 2:49 PM, Alberti, Andrea wrote:
>
> Hi,
>
> my name is Andrea and I am a new openMPI user.
>
>
We used to have Doxygen support that would create what you are asking for, but
I don’t think anyone has maintained it in a long time. I ran “doxygen” at the
top-level directory and it did indeed generate a bunch of html, but I’m not
sure it is all that helpful.
You might take a look and see if
Andrea,
On top of what Ralph just wrote, you might want to upgrade OpenMPI to
the latest stable version (1.10.3)
1.6.5 is pretty antique and is no more maintained.
the message indicates that one process died, and so many things could
cause a process crash.
(since the crash occurs only wi
