1.10.1 failed in make with xlc/xlf it (1.10.1) works with gcc.
master (cloned today from github) works with xlc/xlf.
I wanted to be more confident it worked than just make check. I have built
a few codes appears good so far. Just reporting that master appears to
work with xlc/xlf.
On Sun, Ap
Brock,
which version are you using ? v1.10 ? v2.x ? master ?
what is failing ?
configure ? make ? make install ? make check ?
is this issue specific to xlc/xlf ?
(e.g. does it work with gcc compilers ?)
Cheers,
Gilles
On 4/4/2016 11:28 AM, Brock Palen wrote:
I recently needed to build an Ope
I recently needed to build an OpenMPI build on Power 8 where I had access
to xlc / xlf
The current release fails (as noted in the readme)
But a clone as of April 4th from git worked, here is my (simple) configure
script:
COMPILERS='CC=xlc FC=xlf CXX=xlc++'
./configure \
--prefix=$PREF
Hello Gilles
Thanks again for your inputs. Since that code snippet works for you, I am
now fairly certain that my 'instrumentation' has broken something; sorry
for troubling the whole community while I climb the learning curve. The
netcat script that you mention does work correctly; that and that
your program works fine on my environment.
this is typical of a firewall running on your host(s), can you double
check that ?
a simple way to do that is to
10.10.10.11# nc -l 1024
and on the other node
echo ahah | nc 10.10.10.11 1024
the first command should print "ahah" unless the host is u
Hello Gilles
Thanks for your help.
My question was more of a sanity check on myself. That little program I
sent looked correct to me; do you see anything wrong with it?
What I am running on my setup is an instrumented OMPI stack, taken from git
HEAD, in an attempt to understand how some of the i
Hi,
per a previous message, can you give a try to
mpirun -np 2 -hostfile ~/hostfile -mca btl self,tcp --mca pml ob1 ./mpitest
if it still hangs, the issue could be OpenMPI think some subnets are
reachable but they are not.
for diagnostic :
mpirun --mca btl_base_verbose 100 ...
you can explic
Hello all
I don't mean to be competing for the 'silliest question of the year award',
but I can't figure this out on my own:
My 'cluster' has 2 machines, bigMPI and smallMPI. They are connected via
several (types of) networks and the connectivity is OK.
In this setup, the following program hangs
On 03/04/2016 17:54, Walt Brainerd wrote:
Has anybody built Open MPI on Windows without
using Cygwin?
When I try with anything else (msys2, mingw), there
appears to be all sorts of stuff missing.
Thanks.
--
Walt Brainerd
It was removed some versions ago as it was not supported by
any develo
Has anybody built Open MPI on Windows without
using Cygwin?
When I try with anything else (msys2, mingw), there
appears to be all sorts of stuff missing.
Thanks.
--
Walt Brainerd
I honestly don’t think anyone has been concerned about the speed of
MPI_Comm_spawn, and so there hasn’t been any effort made to optimize it
> On Apr 3, 2016, at 2:52 AM, Gilles Gouaillardet
> wrote:
>
> Hi,
>
> performance of MPI_Comm_spawn in the v1.8/v1.10 series is known to be poor,
> es
Hi,
performance of MPI_Comm_spawn in the v1.8/v1.10 series is known to be poor,
especially compared to v1.6
generally speaking, I cannot recommend v1.6 since it is no more maintained.
that being said, if performance is critical, you might want to give it a
try.
I did not run any performance meas
Hi all,
I am trying to evaluate the time taken for MPI_Comm_spawn operation in the
latest version of OpenMPI. Here a parent communicator (all processes, not
just the root) spawns one new child process (separate executable). The
code I¹m executing is
main(){
{
Š..
// MPI initialization
Š..
start1
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