Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: Re: [OMPI devel] Change in slot_list specification
From: Lenny Verkhovsky (lenny.verkhovsky_at_[hidden])
Date: 2008-07-30 11:50:39


few more details:

    1. added new mca param rmaps_base_slot_list (r19062)

    2. new -slot-list option to mpirun ( r19062)

    3. old opal_paffinity_base_slot_list will be invisible ( r19096)

    4. few bug fixes ( r19004)

On 7/30/08, Lenny Verkhovsky <lenny.verkhovsky_at_[hidden]> wrote:
>
> if there is no objection I want to bring it to 1.3
>
> ( r19062)
>
> On 7/28/08, Ralph Castain <rhc_at_[hidden]> wrote:
>>
>> Just an FYI for those of you working with slot_lists.
>>
>> Lenny, Jeff and I have changed the mca param associated with how you
>> specify the slot list you want the rank_file mapper to use. This was done to
>> avoid the possibility of ORTE processes such as mpirun and orted
>> accidentally binding themselves to cores. The prior param was identical to
>> the one used to tell MPI procs their core bindings - so if someone ever
>> modified the paffinity system to detect the param and automatically
>> perform the binding, mpirun and orted could both bind themselves to the
>> specified cores...which isn't what we would want.
>>
>> The new param is "rmaps_base_slot_list". To make life easier, we also
>> added a new orterun cmd line option --slot-list which acts as a shorthand
>> for the new mca param.
>>
>> Ralph
>>
>> _______________________________________________
>> devel mailing list
>> devel_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>
>
>