hwloc (Hardware Locality) 2.11.0 is now available for download.
https://www.open-mpi.org/software/hwloc/v2.11/
v2.11.0 brings some new features as well as many minor
improvements and many bug fixes. Mostly about memory and GPU
management, but not only.
The following is a summary of the changes since v2.10.0.
Version 2.11.0
--------------
* API
+ Add HWLOC_MEMBIND_WEIGHTED_INTERLEAVE memory binding policy on
Linux 6.9+. Thanks to Honggyu Kim for the patch.
- weighted_interleave_membind is added to membind support bits.
- The "weighted" policy is added to the hwloc-bind tool.
+ Add hwloc_obj_set_subtype().
* GPU support
+ Don't hide the GPU NUMA node on NVIDIA Grace Hopper.
+ Get Intel GPU OpenCL device locality.
+ Add bandwidths between subdevices in the LevelZero XeLinkBandwidth
matrix.
+ Fix PCI Gen4+ link speed of NVIDIA GPU obtained from NVML,
thanks to Akram Sbaih for the report.
* Windows support
+ Fix Windows support when UNICODE is enabled, several hwloc features
were missing, thanks to Martin for the report.
+ Fix the enabling of CUDA in Windows CMake build,
Thanks to Moritz Kreutzer for the patch.
+ Fix CUDA/OpenCL test source path in Windows CMake.
* Tools
+ Option --best-memattr may now return multiple nodes. Additional
configuration flags may be given to tweak its behavior.
+ hwloc-info has a new --get-attr option to get a single attribute.
+ hwloc-info now supports "levels", "support" and "topology"
special keywords for backward compatibility for hwloc 3.0.
+ The --taskset command-line option is superseded by the new
--cpuset-output-format which also allows to export as list.
+ hwloc-calc may now import bitmasks described as a list of bits
with the new "--cpuset-input-format list".
* Misc
+ The MemoryTiersNr info attribute in the root object now says how many
memory tiers were built. Thanks to Antoine Morvan for the report.
+ Fix the management of infinite cpusets in the bitmap printf/sscanf
API as well as in command-line tools.
+ Add section "Compiling software on top of hwloc's C API" in the
documentation with examples for GNU Make and CMake,
thanks to Florent Pruvost for the help.
Changes since rc1 are mostly cosmetic.
--
Brice
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