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Diffstat (limited to 'hwloc-1.2.1/NEWS')
| -rw-r--r-- | hwloc-1.2.1/NEWS | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/hwloc-1.2.1/NEWS b/hwloc-1.2.1/NEWS new file mode 100644 index 00000000..740df156 --- /dev/null +++ b/hwloc-1.2.1/NEWS @@ -0,0 +1,361 @@ +Copyright © 2009 CNRS +Copyright © 2009-2011 INRIA. All rights reserved. +Copyright © 2009-2011 Université Bordeaux 1 +Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved. + +$COPYRIGHT$ + +Additional copyrights may follow + +$HEADER$ + +=========================================================================== + +This file contains the main features as well as overviews of specific +bug fixes (and other actions) for each version of hwloc since version +0.9 (as initially released as "libtopology", then re-branded to "hwloc" +in v0.9.1). + + +Version 1.2.1 +------------- +* Improve support of AMD Bulldozer "Compute-Unit" modules by detecting + logical processors with different core IDs on Linux. +* Fix hwloc-ps crash when listing processes from another Linux cpuset. + Thanks to Carl Smith for reporting the problem. +* Fix build on AIX and Solaris. Thanks to Carl Smith and Andreas Kupries + for reporting the problems. +* Fix cache size detection on Darwin. Thanks to Erkcan Özcan for reporting + the problem. +* Make configure fail if --enable-xml or --enable-cairo is given and + proper support cannot be found. Thanks to Andreas Kupries for reporting + the XML problem. +* Fix spurious L1 cache detection on AIX. Thanks to Hendryk Bockelmann + for reporting the problem. +* Fix hwloc_get_last_cpu_location(THREAD) on Linux. Thanks to Gabriele + Fatigati for reporting the problem. +* Fix object distance detection on Solaris. +* Add pthread_self weak symbol to ease static linking. +* Minor documentation fixes. + + +Version 1.2.0 +------------- +* Major features + + Expose latency matrices in the API as an array of distance structures + within objects. Add several helpers to find distances. + + Add hwloc_topology_set_distance_matrix() and environment variables + to provide a matrix of distances between a given set of objects. + + Add hwloc_get_last_cpu_location() and hwloc_get_proc_last_cpu_location() + to retrieve the processors where a process or thread recently ran. + - Add the corresponding --get-last-cpu-location option to hwloc-bind. + + Add hwloc_topology_restrict() to restrict an existing topology to a + given cpuset. + - Add the corresponding --restrict option to lstopo. +* Minor API updates + + Add hwloc_bitmap_list_sscanf/snprintf/asprintf to convert between bitmaps + and strings such as 4-5,7-9,12,15- + + hwloc_bitmap_set/clr_range() now support infinite ranges. + + Clarify the difference between inserting Misc objects by cpuset or by + parent. + + hwloc_insert_misc_object_by_cpuset() now returns NULL in case of error. +* Discovery improvements + + x86 backend (for freebsd): add x2APIC support + + Support standard device-tree phandle, to get better support on e.g. ARM + systems providing it. + + Detect cache size on AIX. Thanks Christopher and IBM. + + Improve grouping to support asymmetric topologies. +* Tools + + Command-line tools now support "all" and "root" special locations + consisting in the entire topology, as well as type names with depth + attributes such as L2 or Group4. + + hwloc-calc improvements: + - Add --number-of/-N option to report the number of objects of a given + type or depth. + - -I is now equivalent to --intersect for listing the indexes of + objects of a given type or depth that intersects the input. + - Add -H to report the output as a hierarchical combination of types + and depths. + + Add --thissystem to lstopo. + + Add lstopo-win, a console-less lstopo variant on Windows. +* Miscellaneous + + Remove C99 usage from code base. + + Rename hwloc-gather-topology.sh into hwloc-gather-topology + + Fix AMD cache discovery on freebsd when there is no L3 cache, thanks + Andriy Gapon for the fix. + + +Version 1.1.2 +------------- +* Fix a segfault in the distance-based grouping code when some objects + are not placed in any group. Thanks to Bernd Kallies for reporting + the problem and providing a patch. +* Fix the command-line parsing of hwloc-bind --mempolicy interleave. + Thanks to Guy Streeter for reporting the problem. +* Stop truncating the output in hwloc_obj_attr_snprintf() and in the + corresponding lstopo output. Thanks to Guy Streeter for reporting the + problem. +* Fix object levels ordering in synthetic topologies. +* Fix potential incoherency between device tree and kernel information, + when SMT is disabled on Power machines. +* Fix and document the behavior of hwloc_topology_set_synthetic() in case + of invalid argument. Thanks to Guy Streeter for reporting the problem. +* Add some verbose error message reporting when it looks like the OS + gives erroneous information. +* Do not include unistd.h and stdint.h in public headers on Windows. +* Move config.h files into their own subdirectories to avoid name + conflicts when AC_CONFIG_HEADERS adds -I's for them. +* Remove the use of declaring variables inside "for" loops. +* Some other minor fixes. +* Many minor documentation fixes. + + +Version 1.1.1 +------------- +* Add hwloc_get_api_version() which returns the version of hwloc used + at runtime. Thanks to Guy Streeter for the suggestion. +* Fix the number of hugepages reported for NUMA nodes on Linux. +* Fix hwloc_bitmap_to_ulong() right after allocating the bitmap. + Thanks to Bernd Kallies for reporting the problem. +* Fix hwloc_bitmap_from_ith_ulong() to properly zero the first ulong. + Thanks to Guy Streeter for reporting the problem. +* Fix hwloc_get_membind_nodeset() on Linux. + Thanks to Bernd Kallies for reporting the problem and providing a patch. +* Fix some file descriptor leaks in the Linux discovery. +* Fix the minimum width of NUMA nodes, caches and the legend in the graphical + lstopo output. Thanks to Jirka Hladky for reporting the problem. +* Various fixes to bitmap conversion from/to taskset-strings. +* Fix and document snprintf functions behavior when the buffer size is too + small or zero. Thanks to Guy Streeter for reporting the problem. +* Fix configure to avoid spurious enabling of the cpuid backend. + Thanks to Tim Anderson for reporting the problem. +* Cleanup error management in hwloc-gather-topology.sh. + Thanks to Jirka Hladky for reporting the problem and providing a patch. +* Add a manpage and usage for hwloc-gather-topology.sh on Linux. + Thanks to Jirka Hladky for providing a patch. +* Memory binding documentation enhancements. + + +Version 1.1.0 +------------- + +* API + + Increase HWLOC_API_VERSION to 0x00010100 so that API changes may be + detected at build-time. + + Add a memory binding interface. + + The cpuset API (hwloc/cpuset.h) is now deprecated. It is replaced by + the bitmap API (hwloc/bitmap.h) which offers the same features with more + generic names since it applies to CPU sets, node sets and more. + Backward compatibility with the cpuset API and ABI is still provided but + it will be removed in a future release. + Old types (hwloc_cpuset_t, ...) are still available as a way to clarify + what kind of hwloc_bitmap_t each API function manipulates. + Upgrading to the new API only requires to replace hwloc_cpuset_ function + calls with the corresponding hwloc_bitmap_ calls, with the following + renaming exceptions: + - hwloc_cpuset_cpu -> hwloc_bitmap_only + - hwloc_cpuset_all_but_cpu -> hwloc_bitmap_allbut + - hwloc_cpuset_from_string -> hwloc_bitmap_sscanf + + Add an `infos' array in each object to store couples of info names and + values. It enables generic storage of things like the old dmi board infos + that were previously stored in machine specific attributes. + + Add linesize cache attribute. +* Features + + Bitmaps (and thus CPU sets and node sets) are dynamically (re-)allocated, + the maximal number of CPUs (HWLOC_NBMAXCPUS) has been removed. + + Improve the distance-based grouping code to better support irregular + distance matrices. + + Add support for device-tree to get cache information (useful on Power + architectures). +* Helpers + + Add NVIDIA CUDA helpers in cuda.h and cudart.h to ease interoperability + with CUDA Runtime and Driver APIs. + + Add Myrinet Express helper in myriexpress.h to ease interoperability. +* Tools + + lstopo now displays physical/OS indexes by default in graphical mode + (use -l to switch back to logical indexes). The textual output still uses + logical by default (use -p to switch to physical indexes). + + lstopo prefixes logical indexes with `L#' and physical indexes with `P#'. + Physical indexes are also printed as `P#N' instead of `phys=N' within + object attributes (in parentheses). + + Add a legend at the bottom of the lstopo graphical output, use --no-legend + to remove it. + + Add hwloc-ps to list process' bindings. + + Add --membind and --mempolicy options to hwloc-bind. + + Improve tools command-line options by adding a generic --input option + (and more) which replaces the old --xml, --synthetic and --fsys-root. + + Cleanup lstopo output configuration by adding --output-format. + + Add --intersect in hwloc-calc, and replace --objects with --largest. + + Add the ability to work on standard input in hwloc-calc. + + Add --from, --to and --at in hwloc-distrib. + + Add taskset-specific functions and command-line tools options to + manipulate CPU set strings in the format of the taskset program. + + Install hwloc-gather-topology.sh on Linux. + + +Version 1.0.3 +------------- + +* Fix support for Linux cpuset when emulated by a cgroup mount point. +* Remove unneeded runtime dependency on libibverbs.so in the library and + all utils programs. +* Fix hwloc_cpuset_to_linux_libnuma_ulongs in case of non-linear OS-indexes + for NUMA nodes. +* lstopo now displays physical/OS indexes by default in graphical mode + (use -l to switch back to logical indexes). The textual output still uses + logical by default (use -p to switch to physical indexes). + + +Version 1.0.2 +------------- + +* Public headers can now be included directly from C++ programs. +* Solaris fix for non-contiguous cpu numbers. Thanks to Rolf vandeVaart for + reporting the issue. +* Darwin 10.4 fix. Thanks to Olivier Cessenat for reporting the issue. +* Revert 1.0.1 patch that ignored sockets with unknown ID values since it + only slightly helped POWER7 machines with old Linux kernels while it + prevents recent kernels from getting the complete POWER7 topology. +* Fix hwloc_get_common_ancestor_obj(). +* Remove arch-specific bits in public headers. +* Some fixes in the lstopo graphical output. +* Various man page clarifications and minor updates. + + +Version 1.0.1 +------------- + +* Various Solaris fixes. Thanks to Yannick Martin for reporting the issue. +* Fix "non-native" builds on x86 platforms (e.g., when building 32 + bit executables with compilers that natively build 64 bit). +* Ignore sockets with unknown ID values (which fixes issues on POWER7 + machines). Thanks to Greg Bauer for reporting the issue. +* Various man page clarifications and minor updates. +* Fixed memory leaks in hwloc_setup_group_from_min_distance_clique(). +* Fix cache type filtering on MS Windows 7. Thanks to Αλέξανδρος + Παπαδογιαννάκ for reporting the issue. +* Fixed warnings when compiling with -DNDEBUG. + + +Version 1.0.0 +------------- + +* The ABI of the library has changed. +* Backend updates + + Add FreeBSD support. + + Add x86 cpuid based backend. + + Add Linux cgroup support to the Linux cpuset code. + + Support binding of entire multithreaded process on Linux. + + Fix and enable Group support in Windows. + + Cleanup XML export/import. +* Objects + + HWLOC_OBJ_PROC is renamed into HWLOC_OBJ_PU for "Processing Unit", + its stringified type name is now "PU". + + Use new HWLOC_OBJ_GROUP objects instead of MISC when grouping + objects according to NUMA distances or arbitrary OS aggregation. + + Rework memory attributes. + + Add different cpusets in each object to specify processors that + are offline, unavailable, ... + + Cleanup the storage of object names and DMI infos. +* Features + + Add support for looking up specific PID topology information. + + Add hwloc_topology_export_xml() to export the topology in a XML file. + + Add hwloc_topology_get_support() to retrieve the supported features + for the current topology context. + + Support non-SYSTEM object as the root of the tree, use MACHINE in + most common cases. + + Add hwloc_get_*cpubind() routines to retrieve the current binding + of processes and threads. +* API + + Add HWLOC_API_VERSION to help detect the currently used API version. + + Add missing ending "e" to *compare* functions. + + Add several routines to emulate PLPA functions. + + Rename and rework the cpuset and/or/xor/not/clear operators to output + their result in a dedicated argument instead of modifying one input. + + Deprecate hwloc_obj_snprintf() in favor of hwloc_obj_type/attr_snprintf(). + + Clarify the use of parent and ancestor in the API, do not use father. + + Replace hwloc_get_system_obj() with hwloc_get_root_obj(). + + Return -1 instead of HWLOC_OBJ_TYPE_MAX in the API since the latter + isn't public. + + Relax constraints in hwloc_obj_type_of_string(). + + Improve displaying of memory sizes. + + Add 0x prefix to cpuset strings. +* Tools + + lstopo now displays logical indexes by default, use --physical to + revert back to OS/physical indexes. + + Add colors in the lstopo graphical outputs to distinguish between online, + offline, reserved, ... objects. + + Extend lstopo to show cpusets, filter objects by type, ... + + Renamed hwloc-mask into hwloc-calc which supports many new options. +* Documentation + + Add a hwloc(7) manpage containing general information. + + Add documentation about how to switch from PLPA to hwloc. + + Cleanup the distributed documentation files. +* Miscellaneous + + Many compilers warning fixes. + + Cleanup the ABI by using the visibility attribute. + + Add project embedding support. + + +Version 0.9.4 (unreleased) +-------------------------- + +* Fix reseting colors to normal in lstopo -.txt output. +* Fix Linux pthread_t binding error report. + + +Version 0.9.3 +------------- + +* Fix autogen.sh to work with Autoconf 2.63. +* Fix various crashes in particular conditions: + - xml files with root attributes + - offline CPUs + - partial sysfs support + - unparseable /proc/cpuinfo + - ignoring NUMA level while Misc level have been generated +* Tweak documentation a bit +* Do not require the pthread library for binding the current thread on Linux +* Do not erroneously consider the sched_setaffinity prototype is the old version + when there is actually none. +* Fix _syscall3 compilation on archs for which we do not have the + sched_setaffinity system call number. +* Fix AIX binding. +* Fix libraries dependencies: now only lstopo depends on libtermcap, fix + binutils-gold link +* Have make check always build and run hwloc-hello.c +* Do not limit size of a cpuset. + + +Version 0.9.2 +------------- + +* Trivial documentation changes. + + +Version 0.9.1 +------------- + +* Re-branded to "hwloc" and moved to the Open MPI project, relicensed under the + BSD license. +* The prefix of all functions and tools is now hwloc, and some public + functions were also renamed for real. +* Group NUMA nodes into Misc objects according to their physical distance + that may be reported by the OS/BIOS. + May be ignored by setting HWLOC_IGNORE_DISTANCES=1 in the environment. +* Ignore offline CPUs on Solaris. +* Improved binding support on AIX. +* Add HP-UX support. +* CPU sets are now allocated/freed dynamically. +* Add command line options to tune the lstopo graphical output, add + semi-graphical textual output +* Extend topobind to support multiple cpusets or objects on the command + line as topomask does. +* Add an Infiniband-specific helper hwloc/openfabrics-verbs.h to retrieve + the physical location of IB devices. + + +Version 0.9 (libtopology) +------------------------- + +* First release. |