George,
I think if you get rid of the --start 100 you'll see the curves I'm
getting on my local cluster and on Comet. I don't know exactly how
the memory registration is handled so it isn't clear to me why there
would be less of a penalty for non factors of 8 when starting the tests
at 1
Hi,
Using opemi 2.1, the following code resulted in the core dump, although
only a simple error msg was expected. Any idea what is wrong? It seemed
related the errhandler somewhere.
D.G.
*** An error occurred in MPI_Reduce
*** reported by process [3645440001,0]
*** on communicator MPI_CO
By default MPI errors are fatal and abort. The error message says it all:
*** An error occurred in MPI_Reduce
*** reported by process [3645440001,0]
*** on communicator MPI_COMM_WORLD
*** MPI_ERR_COUNT: invalid count argument
*** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort
Those messages are what I like to see. But, there are some other error
messages and core dump I don't like, as I attached in my previous email. I
think something might be wrong with errhandler in openmpi. Similar thing
happened for Bcast, etc
Dahai
On Thu, May 4, 2017 at 4:32 PM, Nathan Hjelm
Dahai,
You are right the segfault is unexpected. I can't replicate this on my mac.
What architecture are you seeing this issue ? How was your OMPI compiled ?
Please post the output of ompi_info.
Thanks,
George.
On Thu, May 4, 2017 at 5:42 PM, Dahai Guo wrote:
> Those messages are what I lik
Hi, George:
attached is the ompi_info. I built it on Power8 arch. The configure is
also simple.
../configure --prefix=${installdir} \
--enable-orterun-prefix-by-default
Dahai
On Thu, May 4, 2017 at 4:45 PM, George Bosilca wrote:
> Dahai,
>
> You are right the segfault is unexpected. I can't
Can you get a stack trace?
> On May 4, 2017, at 6:44 PM, Dahai Guo wrote:
>
> Hi, George:
>
> attached is the ompi_info. I built it on Power8 arch. The configure is also
> simple.
>
> ../configure --prefix=${installdir} \
> --enable-orterun-prefix-by-default
>
> Dahai
>
> On Thu, May 4, 2
I was able to reproduce it (with the correct version of OMPI, aka. the v2.x
branch). The problem seems to be that we are lacking a part of
the fe68f230991 commit, that remove a free on a statically allocated array.
Here is the corresponding patch:
diff --git a/ompi/errhandler/errhandler_predefined
