On Feb 23, 2014, at 10:42 AM, Saliya Ekanayake wrote:
> Hi,
>
> This is to get some info on the subject and not directly a question on
> OpenMPI.
>
> I've Jeff's blog post on integrating OpenMPI with Hadoop
> (http://blogs.cisco.com/performance/resurrecting-mpi-and-java/) and wanted to
> ch
This is very interesting. I've been working on getting one of our
clustering programs (
http://grids.ucs.indiana.edu/ptliupages/publications/DAVS_IEEE.pdf) to work
with OpenMPI Java binding and we obtained very good speedup and scalability
when run on HPC clusters with Infiniband. We are working on
Hi...
I have a rather large and complex set of FORTRAN and C++ programs for a
simulation project.
I am using a Nvidia Cluster system that hosts Linux along with openmpi
version 1.6.1 along with
FORTRAN 77 and 90 compilers and C++. The linux system uses Bourne shells.
I have a makefile that
On Feb 24, 2014, at 7:55 AM, Saliya Ekanayake wrote:
> This is very interesting. I've been working on getting one of our clustering
> programs (http://grids.ucs.indiana.edu/ptliupages/publications/DAVS_IEEE.pdf)
> to work with OpenMPI Java binding and we obtained very good speedup and
> scala
Thank you Ralph. I'll get back to you if I run into issues.
On Mon, Feb 24, 2014 at 12:23 PM, Ralph Castain wrote:
>
> On Feb 24, 2014, at 7:55 AM, Saliya Ekanayake wrote:
>
> This is very interesting. I've been working on getting one of our
> clustering programs (
> http://grids.ucs.indiana.e
This is not an issue with Open MPI; it's an issue with how the Fortran compiler
works on your Linux system. It's choosing to put suffix it Fortran symbols
with "_" (and possibly in some cases, "__"), whereas the C compiler is not.
FWIW, this is a fairly common Fortran Linux compiler convention
Sorry for the delay in replying.
I don't see an immediate reason why this would happen, but you might want to
double/triple check the count parameters that you are sending. Are you 100%
sure that they are correct?
It might also be worth checking that you're sending in the right buffer pointer
On 2/24/2014 4:45 PM, Jeff Squyres (jsquyres) wrote:
This is not an issue with Open MPI; it's an issue with how the Fortran compiler works on
your Linux system. It's choosing to put suffix it Fortran symbols with "_"
(and possibly in some cases
[with long past compilers],
"__")
, wherea
On Feb 24, 2014, at 5:47 PM, Tim Prince wrote:
>> Or you can use the new Fortran'08 C interop stuff (BIND(C)), in which you
>> can specify the C symbol name in the Fortran code. Be aware that while this
>> is supported in some Fortran compilers, it is not yet necessarily supported
>> in the v
