George Bosilca writes:
> Dave,
>
> You are absolutely right, the parameters are now 6-7 years old,
> gathered on interconnects long gone. Moreover, several discussions in
> this mailing list indicated that they do not match current network
> capabilities.
>
> I have recently reshuffled the tuned
Tom Rosmond writes:
> Thanks for replying, but the difference between what can be done in C
> vs fortran is still my problem. I apologize for my rudimentary
> understanding of C, but here is a brief summary:
I'm not an expert on this stuff, just cautioning about Fortran semantics
where I could
We just switched the default compile-mode to MPI_THREAD_MULTIPLE (with
prior testing). Thus, we are relatively confident it should work on all
BTLs. If not we would be happy to hear about.
George.
On Sun, Apr 24, 2016 at 11:02 AM, dpchoudh . wrote:
> Hello Gilles
>
> That idea crossed my min
On Apr 24, 2016, at 8:12 PM, Gilles Gouaillardet wrote:
>
> fwiw, once in a while, i
> rm -rf /.../ompi_install_dir/lib/openmpi
> to get rid of the removed modules
If it helps, I usually install Open MPI into a tree all by itself, and then I
can "rm -rf $ompi_install_dir" in its entirety
> On Apr 25, 2016, at 11:33 , Dave Love wrote:
>
> George Bosilca writes:
>
>> Dave,
>>
>> You are absolutely right, the parameters are now 6-7 years old,
>> gathered on interconnects long gone. Moreover, several discussions in
>> this mailing list indicated that they do not match current net
Hi Elio
As Gilles said, if you change the integer size to -i8 in the
application, and MPI was built with the default-sized integers
(4 bytes), things will get really ugly and mismatched.
Better avoid flags such as -i8, -r8, etc, when compiling MPI programs.
Have you tried to compile the code w
Hi
Sorry if this isn't 100% relevant to this list but I'm at my wits end.
After a lot of hacking, I've finally configured openmpi on my Ubuntu
cluster. I had been having awful problems with not being able to find the
libraries on the remote nodes but apparently the workaround is to use
ld.
Have you tried configuring OMPI with -enable-orterun-prefix-by-default?
> On Apr 25, 2016, at 10:34 AM, Rob Malpass wrote:
>
> Hi
>
> Sorry if this isn’t 100% relevant to this list but I’m at my wits end…
>
> After a lot of hacking, I’ve finally configured openmpi on my Ubuntu cluster.
>
In addition to what Ralph said, check out these 3 FAQ items:
https://www.open-mpi.org/faq/?category=running#run-prereqs
https://www.open-mpi.org/faq/?category=running#adding-ompi-to-path
https://www.open-mpi.org/faq/?category=running#mpirun-prefix
> On Apr 25, 2016, at 2:02 PM, Ralph Castain w
