And what will you do for RTE components that aren't ORTE? This really isn't a feature of a run-time, so it doesn't seem like it should be part of the RTE interface...
Brian On Feb 17, 2014, at 3:03 PM, Jeff Squyres (jsquyres) <jsquy...@cisco.com> wrote: > WHAT: New OMPI_RTE_EVENT_BASE define > > WHY: The usnic BTL needs to run some events asynchronously; the ORTE event > base already exists and is running asynchronously in MPI processes > > WHERE: in ompi/mca/rte/rte.h and rte_orte.h > > TIMEOUT: COB Friday, 21 Feb 2014 > > MORE DETAIL: > > The WHY line described it pretty well: we want to run some things > asynchronously in the usnic BTL and we don't really want to re-invent the > wheel (or add yet another thread in each MPI process). The ORTE event base > is already there, there's already a thread servicing it, and Ralph tells me > that it is safe to add our own events on to it. > > The patch below adds the new OMPI_RTE_EVENT_BASE #define. > > > diff --git a/ompi/mca/rte/orte/rte_orte.h b/ompi/mca/rte/orte/rte_orte.h > index 3c88c6d..3ceadb8 100644 > --- a/ompi/mca/rte/orte/rte_orte.h > +++ b/ompi/mca/rte/orte/rte_orte.h > @@ -142,6 +142,9 @@ typedef struct { > } ompi_orte_tracker_t; > OBJ_CLASS_DECLARATION(ompi_orte_tracker_t); > > +/* define the event base that the RTE exports */ > +#define OMPI_RTE_EVENT_BASE orte_event_base > + > END_C_DECLS > > #endif /* MCA_OMPI_RTE_ORTE_H */ > diff --git a/ompi/mca/rte/rte.h b/ompi/mca/rte/rte.h > index 69ad488..de10dff 100644 > --- a/ompi/mca/rte/rte.h > +++ b/ompi/mca/rte/rte.h > @@ -150,7 +150,9 @@ > * a. OMPI_DB_HOSTNAME > * b. OMPI_DB_LOCALITY > * > - * (g) Communication support > + * (g) Asynchronous / event support > + * 1. OMPI_RTE_EVENT_BASE - the libevent base that executes in a > + * separate thread > * > */ > > @@ -162,6 +164,7 @@ > #include "opal/dss/dss_types.h" > #include "opal/mca/mca.h" > #include "opal/mca/base/base.h" > +#include "opal/mca/event/event.h" > > BEGIN_C_DECLS > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel > -- Brian Barrett There is an art . . . to flying. The knack lies in learning how to throw yourself at the ground and miss. Douglas Adams, 'The Hitchhikers Guide to the Galaxy'