The Hardware Locality (hwloc) team is pleased to announce the first release candidate for v1.9:
http://www.open-mpi.org/projects/hwloc/ v1.9rc1 is the first milestone of a major feature release. It adds a couple enhanced API functions, many object attributes for better representing CPU and I/O device characteristics, and more. * API + Add hwloc_obj_type_sscanf() to extend hwloc_obj_type_of_string() with type-specific attributes such as Cache/Group depth and Cache type. hwloc_obj_type_of_string() is moved to hwloc/deprecated.h. + Add hwloc_linux_get_tid_last_cpu_location() for retrieving the last CPU where a Linux thread given by TID ran. + Add hwloc_distrib() to extend the old hwloc_distribute[v]() functions. hwloc_distribute[v]() is moved to hwloc/deprecated.h. * Backends + Add CPUVendor, CPUModelNumber and CPUFamilyNumber info attributes for x86, ia64 and Xeon Phi sockets on Linux, to extend the x86-specific support added in v1.8.1. Requested by Ralph Castain. + Add many CPU- and Platform-related info attributes on ARM and POWER platforms, in the Machine and Socket objects. + Add CUDA info attributes describing the number of multiprocessors and cores and the size of the global, shared and L2 cache memories in CUDA OS devices. + Add OpenCL info attributes describing the number of compute units and the global memory size in OpenCL OS devices. + The synthetic backend now accepts extended types such as L2Cache, L1i or Group3. lstopo also exports synthetic strings using these extended types. * Tools + lstopo does not overwrite output files by default anymore. Pass -f or --force to enforce it. + lstopo now displays OpenCL, CUDA and Xeon Phi numbers of cores and memory sizes in the graphical output. + Add -e or --get-last-cpu-location to hwloc-ps to report where processes/threads run instead of where they are bound. + hwloc-ps reports locations as likely-more-useful objects such as Cores or Sockets instead of Caches when possible. + Add -e as a synonym to --get-last-cpu-location in hwloc-bind. + Add --reverse to hwloc-distrib to distribute using last objects first and singlify into last bits first. Thanks to Jirka Hladky for the suggestion. + hwloc-info now reports unified caches when looking for data or instruction cache ancestor objects. * Misc + Add experimental Visual Studio support under contrib/windows. Thanks to Eloi Gaudry for his help and for providing the first draft. + Fix some overzealous assertions and warnings about the ordering of objects on a level with respect to cpusets. The ordering is only guaranteed for complete cpusets (based on the first bit in sets). v1.9rc1 also contains some bug fixes that are waiting for a v1.8.2 stable release that may or may not ever happen: * Don't mix total and local memory when displaying verbose object attributes with hwloc_obj_attr_snprintf() or in lstopo. * Fix a memory leak in the diff interface when adding a "too complex" entry. * Fix lstopo export to stdout when specifying a Cairo-based output type with --of. * Fix some memory leaks when importing xml diffs. * Fix hwloc-bind failure on Windows when not using --pid. -- Brice
