HPX V0.9.7

We have had over 1000 commits since the last release and we have closed over 180 tickets (bugs, feature requests, etc.).

General Changes

Ported HPX to BlueGene/Q
Improved HPX support for Xeon/Phi accelerators
Reimplemented hpx::bind, hpx::tuple, and hpx::function for better performance and better compliance with the C++11 Standard. Added hpx::mem_fn.
Reworked hpx::when_all and hpx::when_any for better compliance with the ongoing C++ standardization effort, added heterogeneous version for those functions. Added hpx::when_any_swapped.
Added hpx::copy as a precursor for a migrate functionality
Added hpx::get_ptr allowing to directly access the memory underlying a given component
Added the hpx::lcos::broadcast, hpx::lcos::reduce, and hpx::lcos::fold collective operations
Added hpx::get_locality_name allowing to retrieve the name of any of the localities for the application.
Added support for more flexible thread affinity control from the HPX command line, such as new modes for --hpx:bind (balanced, scattered, compact), improved default settings when running multiple localities on the same node.
Added experimental executors for simpler thread pooling and scheduling. This API may change in the future as it will stay aligned with the ongoing C++ standardization efforts.
Massively improved the performance of the HPX serialization code. Added partial support for zero copy serialization of array and bitwise-copyable types.
General performance improvements of the code related to threads and futures.

Bug Fixes (Closed Tickets)

Here is a list of the important tickets we closed for this release.

#1005 - Allow to disable array optimizations and zero copy optimizations for each parcelport
#1004 - Generate new HPX logo image for the docs
#1002 - If MPI parcelport is not available, running HPX under mpirun should fail
#1001 - Zero copy serialization raises assert
#1000 - Can't connect to a HPX application running with the MPI parcelport from a non MPI parcelport locality
#999 - Optimize hpx::when_n
#998 - Fixed const-correctness
#997 - Making serialize_buffer::data() type save
#996 - Memory leak in hpx::lcos::promise
#995 - Race while registering pre-shutdown functions
#994 - thread_rescheduling regression test does not compile
#992 - Correct comments and messages
#991 - setcap cap_sys_rawio=ep for power profiling causes an HPX application to abort
#989 - Jacobi hangs during execution
#988 - multiple_init test is failing
#986 - Can't call a function called "init" from "main" when using <hpx/hpx_main.hpp>
#984 - Reference counting tests are failing
#983 - thread_suspension_executor test fails
#980 - Terminating HPX threads don't leave stack in virgin state
#979 - Static scheduler not in documents
#978 - Preprocessing limits are broken
#977 - Make tests.regressions.lcos.future_hang_on_get shorter
#976 - Wrong library order in pkgconfig
#975 - Please reopen #963
#974 - Option pu-offset ignored in fixing_588 branch
#972 - Cannot use MKL with HPX
#969 - Non-existent INI files requested on the command line via --hpx:config do not cause warnings or errors.
#968 - Cannot build examples in fixing_588 branch
#967 - Command line description of --hpx:queuing seems wrong
#966 - --hpx:print-bind physical core numbers are wrong
#965 - Deadlock when building in Release mode
#963 - Not all worker threads are working
#962 - Problem with SLURM integration
#961 - --hpx:print-bind outputs incorrect information
#960 - Fix cut and paste error in documentation of get_thread_priority
#959 - Change link to boost.atomic in documentation to point to boost.org
#958 - Undefined reference to intrusive_ptr_release
#957 - Make tuple standard compliant
#956 - Segfault with a3382fb
#955 - --hpx:nodes and --hpx:nodefiles do not work with foreign nodes
#954 - Make order of arguments for hpx::async and hpx::broadcast consistent
#953 - Cannot use MKL with HPX
#952 - register_[pre_]shutdown_function never throw
#951 - Assert when number of threads is greater than hardware concurrency
#948 - HPX_HAVE_GENERIC_CONTEXT_COROUTINES conflicts with HPX_HAVE_FIBER_BASED_COROUTINES
#947 - Need MPI_THREAD_MULTIPLE for backward compatibility
#946 - HPX does not call MPI_Finalize
#945 - Segfault with hpx::lcos::broadcast
#944 - OS X: assertion 'pu_offset_ < hardware_concurrency' failed
#943 - #include <hpx/hpx_main.hpp> does not work
#942 - Make the BG/Q work with -O3
#940 - Use separator when concatenating locality name
#939 - Refactor MPI parcelport to use MPI_Wait instead of multiple MPI_Test calls
#938 - Want to officially access client_base::gid_
#937 - client_base::gid_ should be private
#936 - Want doxygen-like source code index
#935 - Build error with gcc 4.6 and Boost 1.54.0 on hpx trunk and 0.9.6
#933 - Cannot build HPX with Boost 1.54.0
#932 - Components are destructed too early
#931 - Make HPX work on BG/Q
#930 - make git-docs is broken
#929 - Generating index in docs broken
#928 - Optimize hpx::util::static_ for C++11 compilers supporting magic statics
#924 - Make kill_process_tree (in process.py) more robust on Mac OSX
#923 - Correct BLAS and RNPL cmake tests
#922 - Cannot link against BLAS
#921 - Implement hpx::mem_fn
#920 - Output locality with --hpx:print-bind
#919 - Correct grammar; simplify boolean expressions
#918 - Link to hello_world.cpp is broken
#917 - adapt cmake file to new boostbook version
#916 - fix problem building documentation with xsltproc >= 1.1.27
#915 - Add another TBBMalloc library search path
#914 - Build problem with Intel compiler on Stampede (TACC)
#913 - fix error messages in fibonacci examples
#911 - Update OS X build instructions
#910 - Want like to specify MPI_ROOT instead of compiler wrapper script
#909 - Warning about void* arithmetic
#908 - Buildbot for MIC is broken
#906 - Can't use --hpx:bind=balanced with multiple MPI processes
#905 - --hpx:bind documentation should describe full grammar
#904 - Add hpx::lcos::fold and hpx::lcos::inverse_fold collective operation
#903 - Add hpx::when_any_swapped()
#902 - Add hpx::lcos::reduce collective operation
#901 - Web documentation is not searchable
#900 - Web documentation for trunk has no index
#898 - Some tests fail with GCC 4.8.1 and MPI parcel port
#897 - HWLOC causes failures on Mac
#896 - pu-offset leads to startup error
#895 - hpx::get_locality_name not defined
#894 - Race condition at shutdown
#893 - --hpx:print-bind switches std::cout to hexadecimal mode
#892 - hwloc_topology_load can be expensive -- don't call multiple times
#891 - The documentation for get_locality_name is wrong
#890 - --hpx:print-bind should not exit
#889 - --hpx:debug-hpx-log=FILE does not work
#888 - MPI parcelport does not exit cleanly for --hpx:print-bind
#887 - Choose thread affinities more cleverly
#886 - Logging documentation is confusing
#885 - Two threads are slower than one
#884 - is_callable failing with member pointers in C++11
#883 - Need help with is_callable_test
#882 - tests.regressions.lcos.future_hang_on_get does not terminate
#881 - tests/regressions/block_matrix/matrix.hh won't compile with GCC 4.8.1
#880 - HPX does not work on OS X
#878 - future::unwrap triggers assertion
#877 - "make tests" has build errors on Ubuntu 12.10
#876 - tcmalloc is used by default, even if it is not present
#875 - global_fixture is defined in a header file
#874 - Some tests take very long
#873 - Add block-matrix code as regression test
#872 - HPX documentation does not say how to run tests with detailed output
#871 - All tests fail with "make test"
#870 - Please explicitly disable serialization in classes that don't support it
#868 - boost_any test failing
#867 - Reduce the number of copies of hpx::function arguments
#863 - Futures should not require a default constructor
#862 - value_or_error shall not default construct its result
#861 - HPX_UNUSED macro
#860 - Add functionality to copy construct a component
#859 - hpx::endl should flush
#858 - Create hpx::get_ptr<> allowing to access component implementation
#855 - Implement hpx::INVOKE
#854 - hpx/hpx.hpp does not include hpx/include/iostreams.hpp
#853 - Feature request: null future
#852 - Feature request: Locality names
#851 - hpx::cout output does not appear on screen
#849 - All tests fail on OS X after installing
#848 - Update OS X build instructions
#846 - Update hpx_external_example
#845 - Issues with having both debug and release modules in the same directory
#844 - Create configuration header
#843 - Tests should use CTest
#842 - Remove buffer_pool from MPI parcelport
#841 - Add possibility to broadcast an index with hpx::lcos::broadcast
#838 - Simplify util::tuple
#837 - Adopt boost::tuple tests for util::tuple
#836 - Adopt boost::function tests for util::function
#835 - Tuple interface missing pieces
#833 - Partially preprocessing files not working
#832 - Native papi counters do not work with wild cards
#831 - Arithmetics counter fails if only one parameter is given
#830 - Convert hpx::util::function to use new scheme for serializing its base pointer
#829 - Consistently use decay<T> instead of remove_const< remove_reference<T>>
#828 - Update future implementation to N3721 and N3722
#827 - Enable MPI parcelport for bootstrapping whenever application was started using mpirun
#826 - Support command line option --hpx:print-bind even if --hpx::bind was not used
#825 - Memory counters give segfault when attempting to use thread wild cards or numbers only total works
#824 - Enable lambda functions to be used with hpx::async/hpx::apply
#823 - Using a hashing filter
#822 - Silence unused variable warning
#821 - Detect if a function object is callable with given arguments
#820 - Allow wildcards to be used for performance counter names
#819 - Make the AGAS symbolic name registry distributed
#818 - Add future::then() overload taking an executor
#817 - Fixed typo
#815 - Create an lco that is performing an efficient broadcast of actions
#814 - Papi counters cannot specify thread#* to get the counts for all threads
#813 - Scoped unlock
#811 - simple_central_tuplespace_client run error
#810 - ostream error when << any objects
#809 - Optimize parcel serialization
#808 - HPX applications throw exception when executed from the build directory
#807 - Create performance counters exposing overall AGAS statistics
#795 - Create timed make_ready_future
#794 - Create heterogeneous when_all/when_any/etc.
#721 - Make HPX usable for Xeon Phi
#694 - CMake should complain if you attempt to build an example without its dependencies
#692 - SLURM support broken
#683 - python/hpx/process.py imports epoll on all platforms
#619 - Automate the doc building process
#600 - GTC performance broken
#577 - Allow for zero copy serialization/networking
#551 - Change executable names to have debug postfix in Debug builds
#544 - Write a custom .lib file on Windows pulling in hpx_init and hpx.dll, phase out hpx_init
#534 - hpx::init should take functions by std::function and should accept all forms of hpx_main
#508 - FindPackage fails to set FOO_LIBRARY_DIR
#506 - Add cmake support to generate ini files for external applications
#470 - Changing build-type after configure does not update boost library names
#453 - Document hpx_run_tests.py
#445 - Significant performance mismatch between MPI and HPX in SMP for allgather example
#443 - Make docs viewable from build directory
#421 - Support multiple HPX instances per node in a batch environment like PBS or SLURM
#316 - Add message size limitation
#249 - Clean up locking code in big boot barrier
#136 - Persistent CMake variables need to be marked as cache variables