- update to 2.8.0:
* API
+ Add HWLOC_TOPOLOGY_FLAG_NO_DISTANCES, _NO_MEMATTRS and _NO_CPUKINDS
to reduce the overhead when unneeded.
+ Add separate Read/Write Bandwidth/Latency memory attributes and
implement them on Linux.
* Backends
+ NUMA nodes may now have a subtype such as DRAM, HBM, SPM, or NVM
on heterogeneous memory platforms on Linux.
- Add DAXType and DAXParent attributes on Linux to tell where a
DAX device or its corresponding NUMA node come from (SPM for
Specific-Purpose or NVM for Non-Volatile Memory).
+ Detect heterogeneous caches in hybrid CPUs on MacOS X,
thanks to Paul Bone for the help.
+ Max frequencies are not ignored in Linux cpukinds anymore (they were
ignored in hwloc 2.7.0), but they may be slightly adjusted to avoid
reporting hybrid CPUs because Intel Turbo Boost Max 3.0.
- See the documentation of environment variable HWLOC_CPUKINDS_MAXFREQ.
+ Hardwire the PCI locality of HPE Cray EX235a nodes.
* Tools
+ lstopo and other tools may now load Linux and x86 cpuid topology files
from a tarball.
+ lstopo may now replace the P# and L# index prefixes with custom strings
thanks to --os-index-prefix and --logical-index-prefix options.
* Misc
+ Add --disable-readme to avoid regenerating the top-level hwloc README
file from the documentation.
OBS-URL: https://build.opensuse.org/request/show/988289
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=48
- update to 2.7.1:
* Workaround crashes when virtual machines report incoherent x86 CPUID
information about numbers of cores and threads.
Thanks to Peter Bense for the report.
* Use setenv() instead of putenv() when trying to force enable oneAPI L0
support, to avoid issues with applications that touch the environment,
thanks to Josh Hursey for the patch.
* Add some warnings at the end of configure when GPU libraries are
missing on the system or their path is missing in the environment.
* Backends
+ Add support for NUMA nodes and caches with more than 64 PUs across
multiple processor groups on Windows 11 and Windows Server 2022.
+ Group objects are not created for Windows processor groups anymore,
except if HWLOC_WINDOWS_PROCESSOR_GROUP_OBJS=1 in the environment.
+ Expose "Cluster" group objects on Linux kernel 5.16+ for CPUs
that share some internal cache or bus. This can be equivalent
to the L2 Cache level on some platforms (e.g. x86) or a specific
level between L2 and L3 on others (e.g. ARM Kungpeng 920).
Thanks to Jonathan Cameron for the help.
- HWLOC_DONT_MERGE_CLUSTER_GROUPS=1 may be set in the environment
to prevent these groups from being merged with identical caches, etc.
+ Improve the oneAPI LevelZero backend:
- Expose subdevices such as "ze0.1" inside root OS devices ("ze0")
when the hardware contains multiple subdevices.
- Add many new attributes to describe device type, and the
numbers of slices, subslices, execution units and threads.
- Expose the memory information as LevelZeroHBM/DDR/MemorySize infos.
+ Ignore the max frequencies of cores in Linux cpukinds when the
base frequencies are available (to avoid exposing hybrid CPUs
when Intel Turbo Boost Max 3.0 gives slightly different max
OBS-URL: https://build.opensuse.org/request/show/967881
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=46
- update to 2.6.0:
* Backends
+ Expose two cpukinds for energy-efficient cores (icestorm) and
high-performance cores (firestorm) on Apple M1 on Mac OS X.
+ Use sysfs CPU "capacity" to rank hybrid cores by efficiency
on Linux when available (mostly on recent ARM platforms for now).
+ Improve HWLOC_MEMBIND_BIND (without the STRICT flag) on Linux kernel
>= 5.15: If more than one node is given, the kernel may now use all
of them instead of only the first one before falling back to others.
+ Expose cache os_index when available on Linux, it may be needed
when using resctrl to configure cache partitioning, memory bandwidth
monitoring, etc.
+ Add a "XGMIHops" distances matrix in the RSMI backend for AMD GPU
interconnected through XGMI links.
+ Expose AMD GPU memory information (VRAM and GTT) in the RSMI backend.
+ Add OS devices such as "bxi0" for Atos/Bull BXI HCAs on Linux.
* Tools
+ lstopo has a better placement algorithm with respect to I/O
objects, see --children-order in the manpage for details.
+ hwloc-annotate may now change object subtypes and cache or memory
sizes.
* Build
+ Allow to specify the ROCm installation for building the RSMI backend:
- Use a custom installation path if specified with --with-rocm=<dir>.
- Use /opt/rocm-<version> if specified with --with-rocm-version=<version>
or the ROCM_VERSION environment variable.
- Try /opt/rocm if it exists.
- See "How do I enable ROCm SMI and select which version to use?"
in the FAQ for details.
+ Add a CMakeLists for Windows under contrib/windows-cmake/ .
OBS-URL: https://build.opensuse.org/request/show/935865
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=45
- update to 2.5.0:
+ Add hwloc/windows.h to query Windows processor groups.
+ Add hwloc_get_obj_with_same_locality() to convert between objects
with same locality, for instance NUMA nodes and Packages,
or OS devices within a PCI device.
+ Add hwloc_distances_transform() to modify distances structures.
- hwloc-annotate and lstopo have new distances-transform options.
+ hwloc_distances_add() is replaced with _add_create() followed by
_add_values() and _add_commit(). See hwloc/distances.h for details.
+ Add topology flags to mitigate binding modifications during
hwloc discovery, especially on Windows:
- HWLOC_TOPOLOGY_FLAG_RESTRICT_TO_CPUBINDING and _MEMBINDING
restrict discovery to PUs and NUMA nodes inside the binding.
- HWLOC_TOPOLOGY_FLAG_DONT_CHANGE_BINDING prevents from ever
changing the binding during discovery.
+ Add a levelzero backend for oneAPI L0 devices, exposed as OS devices
of subtype "LevelZero" and name such as "ze0".
- Add hwloc/levelzero.h for interoperability between converting
between L0 API devices and hwloc cpusets or OS devices.
+ Expose NEC Vector Engine cards on Linux as OS devices of subtype
"VectorEngine" and name "ve0", etc.
Thanks to Anara Kozhokanova, Tim Cramer and Erich Focht for the help.
+ Add a NVLinkBandwidth distances structure between NVIDIA GPUs
(and POWER processor or NVSwitches) in the NVML backend,
and a XGMIBandwidth distances structure between AMD GPUs
in the RSMI backends.
- See "Topology Attributes: Distances, Memory Attributes and CPU Kinds"
in the documentation for details about these new distances.
+ Add support for NUMA node 0 being offline in Linux, thanks to Jirka Hladky.
+ Add --with-cuda-version=<version> or look at the CUDA_VERSION
OBS-URL: https://build.opensuse.org/request/show/906822
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=44
- update to 2.4.1:
* Fix AMD OpenCL device locality when PCI bus or device number >= 128.
Thanks to Edgar Leon for reporting the issue.
+ Applications using any of the following inline functions must
be recompiled to get the fix: hwloc_opencl_get_device_pci_busid()
hwloc_opencl_get_device_cpuset(), hwloc_opencl_get_device_osdev().
* Fix the ranking of cpukinds on non-Windows systems,
thanks to Ivan Kochin for the report.
* Fix the insertion of custom Groups after loading the topology,
thanks to Scott Hicks.
* Add support for CPU0 being offline in Linux, thanks to Garrett Clay.
* Fix missing x86 Package and Core objects FreeBSD/NetBSD.
Thanks to Thibault Payet and Yuri Victorovich for the report.
* Fix the import of very large distances with heterogeneous object types.
* Fix a memory leak in the Linux backend,
thanks to Perceval Anichini.
OBS-URL: https://build.opensuse.org/request/show/879506
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=42
- update to 2.4.0:
+ Add hwloc/cpukinds.h for reporting information about hybrid CPUs.
- Use Linux cpufreq frequencies to rank cores by efficiency.
- Use x86 CPUID hybrid leaf and future Linux kernels sysfs CPU type
files to identify Intel Atom and Core cores.
- Use the Windows native EfficiencyClass to separate kinds.
+ Properly handle Linux kernel 5.10+ exposing ACPI HMAT information
with knowledge of Generic Initiators.
+ lstopo has new --cpukinds and --no-cpukinds options for showing
CPU kinds or not in textual and graphical modes respectively.
+ hwloc-calc has a new --cpukind option for filtering PUs by kind.
+ hwloc-annotate has a new cpukind command for modifying CPU kinds.
+ Fix hwloc_bitmap_nr_ulongs(), thanks to Norbert Eicker.
+ Add a documentation section about
"Topology Attributes: Distances, Memory Attributes and CPU Kinds".
+ Silence some spurious warnings in the OpenCL backend and when showing
process binding with lstopo --ps.
+ Add hwloc/memattrs.h for exposing latency/bandwidth information
between initiators (CPU sets for now) and target NUMA nodes,
typically on heterogeneous platforms.
- When available, bandwidths and latencies are read from the ACPI HMAT
table exposed by Linux kernel 5.2+.
- Attributes may also be customized to expose user-defined performance
information.
+ Add hwloc_get_local_numanode_objs() for listing NUMA nodes that are
local to some locality.
+ The new topology flag HWLOC_TOPOLOGY_FLAG_IMPORT_SUPPORT causes
support arrays to be loaded from XML exported with hwloc 2.3+.
- hwloc_topology_get_support() now returns an additional "misc"
array with feature "imported_support" set when support was imported.
OBS-URL: https://build.opensuse.org/request/show/866383
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=40
* API
+ Add hwloc_bitmap_singlify_by_core() to remove SMT from a given cpuset,
thanks to Florian Reynier for the suggestion.
+ Add --enable-32bits-pci-domain to stop ignoring PCI devices with domain
>16bits (e.g. 10000:02:03.4). Enabling this option breaks the library ABI.
Thanks to Dylan Simon for the help.
* Backends
+ Add support for Linux cgroups v2.
+ Add NUMA support for FreeBSD.
+ Add get_last_cpu_location support for FreeBSD.
+ Remove support for Intel Xeon Phi (MIC, Knights Corner) co-processors.
* Tools
+ Add --uid to filter the hwloc-ps output by uid on Linux.
+ Add a GRAPHICAL OUTPUT section in the manpage of lstopo.
* Misc
+ Use the native dlopen instead of libltdl,
unless --disable-plugin-dlopen is passed at configure time.
- install systemd files using systemd macros and register it on install
with systemd
- build against libnuma on all architectures
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=34
- Update to Version 1.10.0
* v1.10.0 is the new feature release. There is no new major change
in this release, just improvements everywhere.
If you are buying new Intel Xeon E5 with 10 cores or more, this
release is required for proper Socket/NUMA detection until the
Linux kernel gets fixed.
* API
+ Add hwloc_topology_export_synthetic() to export a topology to a
synthetic string without using lstopo. See the Synthetic topologies
section in the documentation.
+ Add hwloc_topology_set/get_userdata() to let the application save
a private pointer in the topology whenever it needs a way to find
its own object corresponding to a topology.
+ Add hwloc_get_numanode_obj_by_os_index() and document that this function
as well as hwloc_get_pu_obj_by_os_index() are good at converting
nodesets and cpusets into objects.
+ hwloc_distrib() does not ignore any objects anymore when there are
too many of them. They get merged with others instead.
Thanks to Tim Creech for reporting the issue.
* Tools
+ hwloc-bind --get <command-line> now executes the command after displaying
the binding instead of ignoring the command entirely.
Thanks to John Donners for the suggestion.
+ Clarify that memory sizes shown in lstopo are local by default
unless specified (total memory added in the root object).
* Synthetic topologies
+ Synthetic topology descriptions may now specify attributes such as
memory sizes and OS indexes. See the Synthetic topologies section
in the documentation.
+ lstopo now exports in this fully-detailed format by default.
OBS-URL: https://build.opensuse.org/request/show/265428
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/hwloc?expand=0&rev=8
