On Apr 20, 2017, at 12:16 AM, Marc Cooper wrote:
>
> I am trying to understand how connections are established among MPI ranks.
> Pardon for the list of questions.
>
> 1) Is there a global data structure that creates and stores rank to network
> address (uri or port number) mapping
It's quite
I’m not seeing any problem inside the OOB - the problem appears to be in the
info being given to it:
[host1:16244] 1 more process has sent help message help-mpi-btl-openib.txt /
default subnet prefix
[host1:16244] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help
/ error message
I have already started a bit on 1.10 branch with following command line:
mpirun -np 2 -host 192.168.2.21,192.168.2.22 --mca btl_openib_use_eager_rdma 0
--mca btl openib,self --mca btl_openib_cpc_include oob -mca oob_tcp_if_include
br0 -mca btl_base_verbose 100 /home/shiqing/workspace/netpipe-3.7
Yeah, I forgot that the 1.10 series still had the BTLs in OMPI. Should be able
to restore it. I honestly don’t recall the bug, though :-(
If you want to try reviving it, you can add some debug in there (plus turn on
the OOB verbosity) and I’m happy to help you figure it out.
Ralph
> On Apr 20,
Hi Ralph,
Yes, it’s been a long time. Hope you all are doing well (I believe so ☺ ).
I’m working on a virtualization project, and need to run Open MPI on an
unikernel OS (most of OFED is missing/unsupported).
Actually I’m only focusing on 1.10.2, which still has oob in ompi. Probably it
might
Ralph,
in v1.10 series, BTL is still in the OMPI layer.
from v2, could the BTL directly use PMIx instead of rml (orte) ?
Cheers,
Gilles
On Thursday, April 20, 2017, r...@open-mpi.org wrote:
> Hi Shiqing!
>
> Been a long time - hope you are doing well.
>
> I see no way to bring the oob module
Hi Shiqing!
Been a long time - hope you are doing well.
I see no way to bring the oob module back now that the BTLs are in the OPAL
layer - this is why it was removed as the oob is in ORTE, and thus not
accessible from OPAL.
Ralph
> On Apr 20, 2017, at 6:02 AM, Shiqing Fan wrote:
>
> Dear al
Dear all,
I noticed that openib oob module has been removed since a long time ago,
because it wasn't working anymore and nobody seemed need it.
But for some special operating system, where the rdmacm, udcm or ibcm kernel
support is missing, oob may still be necessary.
I'm curious if it's possib
