The Open MPI Team, representing a consortium of research, academic, and 
industry partners, is pleased to announce the release of Open MPI version 
1.4.4. This release is mainly a bug fix release over the v1.4.3 release. We 
strongly recommend that all users upgrade to version 1.4.4 if possible. 

Version 1.4.4 can be downloaded from the main Open MPI web site or any of its 
mirrors (mirrors will be updating shortly).

Here is a list of changes in v1.4.4 as compared to v1.4.3 

- Modified a memcpy() call in the openib btl connection setup to use
memmove() instead because of the possibility of an overlapping
copy (as identified by valgrind).
- Changed use of sys_timer_get_cycles() to the more appropriate
wrapper: opal_timer_base_get_cycles().  Thanks to Jani Monoses
for this fix.
- Corrected the reported default value of btl_openib_ib_timeout
in the "IB retries exceeded" error message.  Thanks to Kevin Buckley
for this correction.
- Increase rdmacm adress resolution timeout from 1s to 30s & 
update Chelsio T4 openib BTL defaults.  Thanks to Steve Wise
for these updates.
(** also to appear in 1.5.5)
- Ensure that MPI_Accumulate error return in 1.4 is consistent with
1.5.x and trunk.
- Allow the word "slots" in rankfiles (i.e., not just "slot").
(** also appeared in 1.5.4)
- Add Mellanox ConnectX 3 device IDs to the openib BTL defaults.
(** also appeared in 1.5.4)
- Update description of btl_openib_cq_size to be more accurate.
- Ensure mpirun's --xterm options leaves sessions attached.
(** also appeared in 1.5.4)
- Update to allow more than 128 entries in an appfile.
(** also appeared in 1.5.4)
- Update description of btl_openib_cq_size to be more accurate.
(** also appeared in 1.5.4)
- Fix for deadlock when handling recursive attribute keyval deletions
(e.g., when using ROMIO with MPI_THREAD_MULTIPLE).
- Fix indexed datatype leaks.  Thanks to Pascal Deveze for supplying
the initial patch.  (** also appeared in 1.5.4)
- Fixed the F90 types of the sendcounts and displs parameters to
MPI_SCATTERV.  Thanks to Stanislav Sazykin for identifying the issue.
(** also appeared in 1.5.4)
- Exclude opal/libltdl from "make distclean" when --disable-dlopen is
used.  Thanks to David Gunter for reporting the issue.
- Fixed a segv in MPI_Comm_create when called with GROUP_EMPTY.
Thanks to Dominik Goeddeke for finding this.
(** also appeared in 1.5.4)
- Fixed return codes from MPI_PROBE and MPI_IPROBE.
(** also appeared in 1.5.4)
- Fixed undefined symbol error when using the vtf90 profiling tool.
- Fix for referencing an uninitialized variable in DPM ORTE.  Thanks
to Avinash Malik for reporting the issue.
- Fix for correctly handling multi-token args when using debuggers.
- Eliminated the unneeded u_int*_t datatype definitions.
- Change in ORTE DPM to get around gcc 4.[45].x compiler wanrings
about possibly calling free() on a non-heap variable, even though it
will never happen because the refcount will never go to zero.
- Fixed incorrect text in MPI_File_set_view man page.
- Fix in MPI_Init_thread for checkpoint/restart.
- Fix for libtool issue when using pgcc to compile ompi in conjunction
with the -tp option.
- Fixed a race condition in osc_rdma_sync.  Thanks to Guillaume
Thouvenin for finding this issue.
- Clarification of MPI_Init_thread man page.
- Fixed an indexing problem in precondition_transports.
- Fixed a problem in which duplicated libs were being specified for
linking.  Thanks to Hicham Mouline for noticing it.
- Various fixes.
- Fix for memchecking buffers during MPI_*INIT.
- Man page cleanups.  Thanks to Jeremiah Willcock and Jed Brown.
- Fix for VT rpmbuild on RHEL5.
- Support Solaris legacy munmap prototype changes.
(** also appeared in 1.5.4)
- Expands app_idx to int32_t to allow more than 127 app_contexts.
- Guard the inclusion of execinfo.h since not all platforms have it.  Thanks
to Aleksej Saushev for identifying this issue.
(** also appeared in 1.5.4)
- Fix to avoid possible environment corruption.  Thanks to Peter Thompson
for identifying the issue and supplying a patch.
(** also appeared in 1.5.4)
- Fixed paffinity base MCA duplicate registrations.  Thanks to Gus
Correa for bringing this to our attention.
- Fix recursive locking bug when MPI-IO was used with
MPI_THREAD_MULTIPLE.  (** also appeared in 1.5.4)
- F90 MPI API fixes.
- Fixed a misleading MPI_Bcast error message.  Thanks to Jeremiah
Willcock for reporting this.
- Added <sys/stat.h> to ptmalloc's hooks.c (it's not always included
by default on some systems).
- Libtool patch to get around a build problem when using the IBM XL
- Fix to detect and avoid overlapping memcpy().  Thanks to
Francis Pellegrini for identifying the issue.
- Fix to allow ompi to work on top of RoCE vLANs.
- Restored a missing debugger flag to support TotalView.  Thanks to
David Turner and the TV folks for supplying the fix.
- Updated SLURM support to 1.5.1.
- Removed an extraneous #include from the TCP BTL.
- When specifying OOB ports, fix to convert the ports into network
byte order before binding.
- Fixed use of memory barriers in the SM BTL.  This fixed segv's when
compiling with Intel 10.0.025 or PGI 9.0-3.
- Fix to prevent the SM BTL from creating its mmap'd file in
directories that are remotely mounted.

George Bosilca
Research Assistant Professor
Innovative Computing Laboratory
Department of Electrical Engineering and Computer Science
University of Tennessee, Knoxville

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