[mvapich-discuss] Docker support query

[Jie Zhang]

Hi, Walid,

Sorry for the late reply.
Please find it inline.


Thanks,
-Jie

--------------------------------------------
Department of Computer Science & Engineering
Erwin E. Dreese Laboratories, 2015 Neil Avenue
Ohio State University

On Wed, Aug 24, 2016 at 6:29 PM, Walid <walid.shaari at gmail.com> wrote:

> so if i have 4 bare-metal node cluster, and each node have 2 cpu sockets,
> with total of 16 cores per node. what would be the number of containers?
> would that  be 20 x 4 = 80 containers job, or 4 containers jobs,
>

It depends on your configuration. For instance, you can try with 8
containers (4 nodes * 2 containers per node) in total first.
You can add some options when launching containers to have resource
constraint on each one. For instance, you can use "--cpuset-cpus" to limit
the containers running on 8 CPUs within the same socket.


> and the ssh daemon would that be inside the container?
>

Yes, ssh dasmon needs to be inside the container.


>
> On 24 August 2016 at 19:03, Jie Zhang <zhanjie at cse.ohio-state.edu> wrote:
>
>> Hi, Walid,
>>
>> The Docker support is already available in the latest MVAPICH2-Virt
>> package (http://mvapich.cse.ohio-state.edu/download/mvapich/virt/mva
>> pich2-virt-2.2-0.1rc1.el7.centos.x86_64.rpm), which includes both
>> inter-node and intra-node communication support like what you see under
>> this performance link http://mvapich.cse.ohio-s
>> tate.edu/performance/cont-pt_to_pt/
>> The nodes are established and deployed via SSH.
>>
>> Regarding the setup and usage, you can refer to section 4 and 6 in
>> MVAPICH2-Virt user guide (http://mvapich.cse.ohio-state
>> .edu/userguide/virt/).
>>
>> Let me know if you have other questions.
>>
>> Thanks,
>> -Jie
>>
>> --------------------------------------------
>> Department of Computer Science & Engineering
>> Erwin E. Dreese Laboratories, 2015 Neil Avenue
>> Ohio State University
>>
>> On Wed, Aug 24, 2016 at 5:29 PM, Walid <walid.shaari at gmail.com> wrote:
>>
>>> Greetings All,
>>>
>>> I can see from the two following URLS there are some kind of support for
>>> containers
>>>
>>> http://mvapich.cse.ohio-state.edu/userguide/virt/
>>> http://mvapich.cse.ohio-state.edu/features/
>>>
>>> up to what level is the Docker support in mvapich, can that cross
>>> containers in different compute nodes, or is it just limited to a
>>> containers found on a  single host.
>>>
>>> one reason i am asking is the http://mvapich.cse.ohio-st
>>> ate.edu/performance/cont-pt_to_pt/ mention internode communication, how
>>> are the nodes established and deployed was that via ssh/TM/dssh? can some
>>> one elaborate on the setup and usage of mvapich with Docker ?
>>>
>>> Thanks in advance,
>>>
>>> Walid
>>>
>>>
>>>
>>> _______________________________________________
>>> mvapich-discuss mailing list
>>> mvapich-discuss at cse.ohio-state.edu
>>> http://mailman.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>>>
>>>
>>
>
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