I've introduced a race condition - seeing occasional LOCAL_LENGTH errors on the receive side. I think I'm mixing up eager/max somehow - will look at it more on monday.
This commit was SVN r10690.
- Added some basic flow control to limit number of posted sends.
- Merged endpoint send/recv lock into single endpoint lock.
- Set the LMR triplet length in the send path, not at allocation time.
This has to be done because upper layers might send less than the
amount allocated.
- Alter the tie-breaker if statement protecting the second call
to dat_ep_connect(). The logic was reversed compared to the tie-
breaker for the first dat_ep_connect(), making it possible for
3 or more processes to form a deadlock loop.
- Some asserts were added for debugging purposes.. leaving them
in place for now.
This commit was SVN r10317.
Trying to remember what I did here.. eager/max messages should work now, no RDMA yet. A number of other fixes and cleanups.
I do know of two problems:
Bad stuff happens when flooded with send frags too quickly - the BTL doesn't handle flow control.
Certain IBM tests turn up a length assertion in the datatype engine - needs more investigation.
This commit was SVN r10070.
we send our local addr_t OOB. Remote side then matches endpoints and calls
dat_ep_connect(). Everything should be the same as before from here, except
that client/server roles are reversed.
- Properly set our buffer size when posting receives. When the frag used to
transfer address information is recycled by the free list, the wrong buffer
size was being used, which caused buffer overflow errors.
- Finally put the uDAPL error handling stuff in the mpool component.
- Remove a few more OPAL_OUTPUTs.
This commit was SVN r9569.
Not much got tested that wasn't already - I've uncovered a connection
establishment deadlock and wanted to get these changes committed before I
attack it.
The big changes:
- Moved much of the connection code from btl_udapl_component.c to
btl_udapl_endpoint.c.
- Cleaned up initialization of various fragment members.
- MCA_BTL_UDAPL_ERROR macro, which is compiled in/out appropriately.
This commit was SVN r9496.
In short, I'm very close to having connection establishment and eager send/recv working.
Part of the connection process involves sending address information from the
client to server. For some reason, I am never receiving an event indicating
completetion of the send on the client side. Otherwise, connection
establishment is working and eager send/recv should be trivial from here.
Some more detailed changes:
- Send partially implemented, just handles starting up new connections.
- Several support functions implemented for establishing connection. Client
side code went in btl_udapl_endpoint.c, server side in btl_udapl_component.c
- Frags list and send/recv locks added to the endpoint structure.
- BTL sets up a public service point, which listens for new connections.
Steps over ports that are already bound, iterating through a range of ports.
- Remove any traces of recv frags, don't think I need them after all.
- Pieces of component_progress() implemented for connection establishment.
- Frags have two new types for connection establishment - CONN_SEND and
CONN_RECV.
- Many other minor cleanups not affecting functionality
This commit was SVN r9345.
- move files out of toplevel include/ and etc/, moving it into the
sub-projects
- rather than including config headers with <project>/include,
have them as <project>
- require all headers to be included with a project prefix, with
the exception of the config headers ({opal,orte,ompi}_config.h
mpi.h, and mpif.h)
This commit was SVN r8985.
- Start filling in the progress function, focusing on connection establishment.
- Initialize udapl mpool and free lists
- Create/destroy a protection zone with each IA
- Misc organization as I learn how things work
This commit was SVN r8969.
- Remove printing of CFLAGS in configure.m4
- Set MCA_BTL_FLAGS_SEND flag
- Improved error handling during module initialization
- Extract the address of each interface with dat_ia_query
- Start playing around with fragment stuff - probably wrong
- Misc code cleanup (removal of GM-specific code)
This commit was SVN r8801.
- Borrow configure.m4 from the mvapi btl. One of the uDAPL headers emits a
warning when -pedantic is enabled, so strip it out.
- Change function check in ompi_check_dapl.m4 from dat_ia_open to
dat_registry_list_providers.. dat_ia_open wasn't working right
- Make the references to prepare_dst, put, and get NULL for now
- Add opal_output() calls in all the udapl interface functions for debugging
- Add evd_qlen component parameter to control event dispatcher queue length
- First stab at component_init and module_init
- Misc cleanups - whitespace, dead code removal
- Update copyrights to 2006
This commit was SVN r8701.
- Copied the template BTL and renamed everything
- Compiles and shows up correctly in ompi_info, not tested past that
- Should be ignored for everyone but me
This commit was SVN r8544.
