History of problems fixed

The following fixes apply to IBM PE_RTE updates for both Power and x86 Systems, unless noted otherwise.

IBM PE_RTE 1.2.0.7 [July 19, 2012]

MPI:

Add n-way binary compatility for MPICH2 programs.
Fixed a problem with a glibc segmentation fault during MPI initialization.
Reduced the number of messages displayed for global clock not available.
Fixed a problem with persistent communication errors during MPI_Wait requests.
Fixed a problem in MPI_Gather at large task counts.
Fixed a problem with the handling of zero byte messages.
Fixed a problem with MPI_FILE_WRITE_ALL/MPI_FILE_READ_ALL hangs in large scale environments.
Fixed a memory corruption problem when using shared memory.
Fixed an issue with missing MPICH library paths.
Fixed a performance issue with an external send call mpci_reqSend not using PAMI immediate send for small contiguous data.
Fixed a problem where MPI did not properly create the datatype requested.

POE:

Fixed a problem with clock reinitialization during a restore.
Fixed a problem with clock reinitialization fails during a restart.
Fixed a problem with POE failing to change to a user's secondary group.
Fixed a problem with "poe -h" failing due to an incorrect command path.
Fixed the parsing of some MPI environment variables.
Fixed a problem with queue pair exchanges at large task counts.
Fixed a problem with the relocation of PMD logs for POE standalone jobs when an alternate PMD log directory value is specified.
Fixed a problem with wrongly disabling the debug socket file in large scale jobs.
Fixed an issue with missing PDB message catalog symbolic links.
Fixed a problem restarting a job on more than 32 nodes.

MDCR:

Add more log messages when checkpoint cannot connect to the job file.
Add new options to fix a shared memory problem in container environment.

PAMI:

Improved multi-threaded application performance.
Fixed a problem with PAMI Client query returns numeric processor name.
Fixed a problem with a PAMI core dump when program was invoked without POE.
Increased the PAMI HFI receive FIFO limit from 16MB to 64MB.
Fixed an issue with Resume not working after full preemption.
Fixed a problem with timeouts based on wall time instead of real time.
Fixed a problem when user space initialization hangs with shared memory.
Fixed multiple issues with geometry creation.
Fixed a problem causing a timeout in MPI_Finalize at large task counts.
Fixed a memory leak with MPI_Allgathr in PAMI_Type_create. li>
Improved the scalability in RC FIFO mode.
Fixed a problem causing memory growth when using RDMA.
Handled Client_create failure when MP_MSG_API is not set.
Return error if total number of shared memory endpoints is greater than 128.
Moved initialization of Client's gc_read after counters are initialized to avoid race condition.
Fixed a problem that causes start_pe to fail if SHMEM_ERROR_REPORT=print.
Fixed a problem to improve performance on HFI DD2.0 hardware with SHMEM_DEBUG_HFI20_WORKAROUND=yes.
Distribute shmem locks to different PEs to avoid congestion.
Provided user level RDMA on IB for performance
Improve performance by pre-generating all PE's endpoint numbers.

PDB:

None

IBM PE_RTE 1.2.0.6 [June 19, 2012]

MPI:

Fixed a problem with the MPI_File file handle size for Fortran.
Fixed a problem with incorrect statistics data from an MPICH2 job.
Fixed a performance problem by removing PAMI_Rget from mpich2 shared memory path.
Fixed a problem where clock source changed after a restart.
Fixed a problem with missing library symbolic links for OpenMP ABI.
Fixed a problem with missing _wtime_global symbol.
Fixed a hang in ibsend.

POE:

Fixed a problem with clock reinitialization during a restore.
Fixed an issue with jobs failing with POE pulse timeouts.
Updated AIX packaging to ensure latest SCI daemon gets started.
Fixed an issue with jobs failing with POE pulse timeouts.
Fixed a problem running under LDAP.
Fixed a problem running jobs from a script.
Updated packaging to allow SCI to be shared across other components.

MDCR:

Fixed an issue with redirected STDOUT.

PAMI:

Improved performance by removing reliability acknowledgements.
Fixed a memory leak with IP and IP over InfiniBand.
Fixed a hang with shared memory in reliable hardware mode.
Fixed a problem with the PNSD API memory leak on resume.
Fixed a hang with multiple client create cases.
Fixed a problem compiling Fortran programs.
Fixed a problem in MPI_Win_fence with multiple MPI jobs.
Fixed an abnormal termination or hang with 8K tasks.

PDB:

Fixed a problem where the wrong taskid is reported.
Fixed a problem with a core dump when PDB failed to launch the job.
Fixed a problem attaching to tasks.

IBM PE_RTE 1.2.0.5 [June 11, 2012]

MPI:

Fixed a problem with hangs in MPI jobs after MPI_Finalize times out.
Fixed a problem with nonblocking MPI IO failures with MPICH2.

POE:

Fixed a problem with WAIT next to COMPLETE in a command file.
Fixed an issue where MPI jobs were killed when using the POE run-queue co-scheduler.
Fixed a problem with the coscheduler library path not being correctly set.
Added support for checkpoint/restart.
Added packaging & installation improvements.
Fixed a problem with an empty MP_MSG_API value.
Fixed an issue with task signal handler reentry.
Updated pe_node_diag script to display xinetd settings.
Added MP_EUILIBPATH value to the LD_LIBRARY_PATH when launching the job.
Fixed a problem with internal messaging for TotalView support.
Fixed a problem with open files in task child code with task affinity.
Fixed an issue with I/O buffer overflow when MP_LABELIO=YES is set.

PAMI:

Fixed an issue with jobs timing out due to AIX clock drift.
Fixed a problem where PNSD will sometimes crash when processing the STATUS_ADAPTER request.
Fixed an issue with User Space jobs failing on P7IH.
Fixed a problem with collective operations under Fortran programs.
Fixed a problem where the NRT API provides an incorrect return code value on unload functions.
Fixed a problem with multiple endpoints with large task counts.
Fixed an issue with long delays & timeouts during job initialization with shared memory in use.
Fixed a problem with initialization with RDMA when resuming a job.
Fixed a problem with a hang during sub jobs with MPICH2.
Added latency performance improvements.
Fixed a problem with a failure when using shared memory.
Fixed a hang using multiple protocols.
Added support to create multiple PAMI contexts.
Improved shared memory bandwidth performance.

PDB:

Fixed a problem debugging 32-bit applications.
Fixed a problem where PDB was consuming a lot of CPU time.
Fixed a problem with a hang in PDB launch mode.
None

IBM PE_RTE 1.2.0.2 [April 9, 2012]

MPI:

Add support for Statistics utility functions.
Fixed a problem building MPI programs with MPICH2 compiler scripts.

POE:

Fixed a problem when multiple protocol jobs hang during exit or when real-time signals are generated.
Fixed an issue with pthread_cancel.
Fixed a problem accessing the library path from the environment.
Fixed an issue with long running applications.

PAMI:

Fixed an issue with wrong answers after a restart.
Fixed a shared memory leak issue.
Fixed FORTRAN C binding name mingling problem.
Fixed a problem with creating queue pairs.

PDB:

Fixed a problem debugging 32-bit applications.

IBM PE_RTE 1.2.0.1 [March 19, 2012]

MPI:

Fixed problems compiling & running MPI/MPICH2 programs
Provide the library level used during job execution.
fixed MPI program migration issues.
Fixed an RDMA performance issues.
Fixed na issue with MPI_FILE_READ_ALL hanging.
Fixed an issue with MPI I/O lockless support.
Fixed MPI point to point issues.

POE:

updated man pages to correct some documentation details.
corrected output for poe -v option to show installed RPM levels.
cleanup the pelinks script for Linux.
correct issues with POE running with huge pages.
Fix task affinity issues on x86 Linux platforms.
Fixed an issue with POE supporting short host names.
Provided PE run time installation enhancements including automatically setting the SSH library version.

PAMI:

Fix an issuw with MPI_Reduce_scatter_block producing bad data.
Fix issues with MPICH RDMA reporting wrong data.
Fix issues with compiling & running MPI/MPICH2 programs.

PDB:

Fix an issue where PDB hides output.
Correct issues with mangled C++ function names.
Fix support initialization issues.

Product/Component Name:	Platform:	Fix:
Parallel Environment Runtime Edition	Linux 64-bit,x86_64 RHEL 6 Linux 64-bit,x86_64 SLES 11	PERTE-1.2.0.7-x86_64-Linux

Readme and Release notes for release 1.2.0.7 Parallel Environment Runtime Edition 1.2.0.7 PERTE-1.2.0.7-x86_64-Linux Readme