openmpi

Jeff Squyres 584b80147d usnic: set MCA_BTL_FLAGS_SINGLE_ADD_PROCS

The btl_recv.h:lookup_sender() function uses the hashed ORTE proc name
to determine the sender of the packet.  With add_procs_cutoff>0, the
usnic BTL may not have knowledge of all the senders.

Until the usNIC BTL can be adjusted to do something like the
openib/ugni BTLs (i.e., use opal_proc_for_name() to lookup unknown
sender proc names), set MCA_BTL_FLAGS_SINGLE_ADD_PROCS, which means
that ob1 will only all add_procs() once -- with all the procs in it.

Also in this commit, adapt the connectivity checker to not rely on
knowing all the senders (which is a bit easier than adapting the main
BTL send path): the receiving connectivity agent will simply echo back
the same PING message (which contains the sender's IP address+UDP
port) back to the sender without checking that it knows who the sender
is.  If the sender receives the echoed PING back on the expexted
interface, it will find a match in the pending pings list.  If the
sender receives the echoed PING back an unexpected interface, a match
will not be found, and the incoming PING message will be dropped.

Fixes open-mpi/ompi#1440

2016-03-08 17:41:42 -08:00

asm

opal/asm: remove alpha support

2015-08-18 09:11:38 -06:00

class

opal hotel: only delete events that have not yet fired

2016-01-13 10:59:06 -08:00

datatype

opal/datatype: #include <alloca.h> when needed and nowhere else

2015-12-24 14:33:58 +09:00

dss

Enable the PMIx notification callback system. This currently is only supported by the pmix120 component, which is not selected by default. All other components will ignore error registration requests, and thus do not support debugger attach when launched via mpirun. Note that direct launched applications will support such attachment, but may not do so in a scalable fashion.