I just realized that I replied directly to Matthew and not to the list.
Let me add most of my reply to the thread here on the list, in case it's
helpful to others. See my reply to Matthew, below.
> On Mar 5, 2016, at 10:53 AM, Jeff Squyres (jsquyres)
> wrote:
>
> Let me try to explain a lit
>
> I don't think the Open MPI TCP BTL will pass the SDP socket type when
> creating sockets -- SDP is much lower performance than native verbs/RDMA.
> You should use a "native" interface to your RDMA network instead (which one
> you use depends on which kind of network you have).
>
>
> I
On Mar 1, 2016, at 10:25 PM, dpchoudh . wrote:
>
>
> I don't think the Open MPI TCP BTL will pass the SDP socket type when
> creating sockets -- SDP is much lower performance than native verbs/RDMA.
> You should use a "native" interface to your RDMA network instead (which one
> you use depen
I don't think the Open MPI TCP BTL will pass the SDP socket type when
creating sockets -- SDP is much lower performance than native verbs/RDMA.
You should use a "native" interface to your RDMA network instead (which one
you use depends on which kind of network you have).
I have a rather naive fo
my 0.02 US$
i do not think the OMPI TCP BTL *explicitly* passses the SDP socket type
when creating sockets.
and though i did not try that, i suspect using SDP via an LD_PRELOAD'ed
library would be enought to use SDP sockets
Cheers,
Gilles
On 3/2/2016 11:54 AM, Jeff Squyres (jsquyres) wrote:
On Mar 1, 2016, at 6:55 PM, Matthew Larkin wrote:
>
> As far as PCIe, I am looking into:
>
> 1. Dolphin's implementation of IPoPCIe
If it provides a TCP stack and an IP interface, you should be able to use Open
MPI's TCP BTL interface over it.
> 2. SDP protocol and how it can be utilized, m
As far as PCIe, I am looking into:
1. Dolphin's implementation of IPoPCIe 2. SDP protocol and how it can be
utilized, mapping TCP to RDMA
Not sure if the only answer for this is a custom stack, API/kernel module.
Do you have any input on the above mentioned things?
On Tuesday, March 1, 2016
On Feb 29, 2016, at 6:48 PM, Matthew Larkin wrote:
>
> 1. I know OpenMPI supports ethernet, but where does it clearly state that?
> - I see on the FAQ on the web page there is a whole list of network
> interconnect, but how do I relate that to Ethernet network etc.?
Open MPI actually supports m
Hello all,
First time on here. Two questions.
1. I know OpenMPI supports ethernet, but where does it clearly state that?- I
see on the FAQ on the web page there is a whole list of network interconnect,
but how do I relate that to Ethernet network etc.?
2. Does OpenMPI work with PCIe and PCIe swit
