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Subject: Re: [OMPI devel] C/R and orte_oob
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-02-06 13:49:25


The only reason I can think of for an OOB ft-event would be to tell the OOB to stop sending any messages. You would need to push that into the event library and use a callback event to let you know when it was done.

Of course, once you did that, the OOB would no longer be available to, for example, tell the local daemon that the app is ready for checkpoint :-)

Afraid I'll have to defer to Josh H for any further guidance.

On Feb 6, 2014, at 8:15 AM, Adrian Reber <adrian_at_[hidden]> wrote:

> When I initially made the C/R code compile again I made following
> change:
>
> diff --git a/orte/mca/rml/oob/rml_oob_component.c b/orte/mca/rml/oob/rml_oob_component.c
> index f0b22fc..90ed086 100644
> --- a/orte/mca/rml/oob/rml_oob_component.c
> +++ b/orte/mca/rml/oob/rml_oob_component.c
> @@ -185,8 +185,7 @@ orte_rml_oob_ft_event(int state) {
> ;
> }
>
> - if( ORTE_SUCCESS !=
> - (ret = orte_oob.ft_event(state)) ) {
> + if( ORTE_SUCCESS != (ret = orte_rml_oob_ft_event(state)) ) {
> ORTE_ERROR_LOG(ret);
> exit_status = ret;
> goto cleanup;
>
>
>
> This is, of course, wrong. Now the function calls itself in a loop until
> it crashes. Looking at orte/mca/oob there is still a ft_event()
> function, but it is disabled using "#if 0". Looking at other functions
> it seems I would need to create something like
>
> #define ORTE_OOB_FT_EVENT(m)
>
> Looking at the modules in orte/mca/oob/ it seems ft_event is implemented
> in some places but it never seems to have any real functionality. Is
> ft_event() actually needed there?
>
> Adrian
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