libucm0 - Memory (un)happing hooks for Unified Communication X

Property Value
Distribution openSUSE Tumbleweed
Repository openSUSE Oss all
Package filename libucm0-1.5.0-2.1.x86_64.rpm
Package name libucm0
Package version 1.5.0
Package release 2.1
Package architecture x86_64
Package type rpm
Category System/Libraries
License BSD-3-Clause
Maintainer -
Download size 47.60 KB
Installed size 85.09 KB
libucm is a standalone non-unloadable library which installs hooks
for virtual memory changes in the current process. Then, it calls
user-defined callbacks, which may potentially override the default
behavior, or just passively listen and update their own data. libucm
does not use libuct, to avoid making it non-unloadable as well, and
impelements a basic logging service which is safe to use from malloc


Package Version Architecture Repository
libucm0 - - -


Name Value
/sbin/ldconfig - - - - - -


Name Value -
libucm0 = 1.5.0-2.1
libucm0(x86-64) = 1.5.0-2.1


Type URL
Binary Package libucm0-1.5.0-2.1.x86_64.rpm
Source Package openucx-1.5.0-2.1.src.rpm

Install Howto

Install libucm0 rpm package:

# zypper install libucm0




2019-02-25 - nmorey <>
- Update openucx-s390x-support.patch to fix support of 1.5.0 on s390x (bsc#1121267)
- Add baselibs.conf for ppc
2019-02-22 - Martin Li?ka <>
- Update to v1.5.0 (bsc#1121267)
* Features:
* New emulation mode enabling full UCX functionality (Atomic, Put, Get)
* over TCP and RDMA-CORE interconnects which don't implement full RDMA semantics
* Non-blocking API for all one-sided operations. All blocking communication APIs marked
* as deprecated
* New client/server connection establishment API, which allows connected handover between workers
* Support for rdma-core direct-verbs (DEVX) and DC with mlx5 transports
* GPU - Support for stream API and receive side pipelining
* Malloc hooks using binary instrumentation instead of symbol override
* Statistics for UCT tag API
* GPU-to-Infiniband HCA affinity support based on locality/distance (PCIe)
* Bugfixes:
* Fix overflow in RC/DC flush operations
* Update description in SPEC file and README
* Fix RoCE source port for dc_mlx5 flow control
* Improve ucx_info help message
* Fix segfault in UCP, due to int truncation in count_one_bits()
* Multiple other bugfixes (full list on github)
* Tested configurations:
* InfiniBand: MLNX_OFED 4.4-4.5, distribution inbox drivers, rdma-core
* CUDA: gdrcopy 1.2, cuda 9.1.85
* XPMEM: 2.6.2
* KNEM: 1.1.2
2018-11-06 -
- Update to v1.4.0 (bsc#1103494)
* Features:
* Improved support for installation with latest ROCm
* Improved support for latest rdma-core
* Added support for CUDA IPC for intra-node GPU, CUDA memory
allocation cache for mem-type detection, latest Mellanox
devices, Nvidia GPU managed memory, multiple connections
between the same pair of workers, large worker address for
client/server connection establishment and INADDR_ANY, and
for bitwise atomics operations.
* Bugfixes:
* Performance fixes for rendezvous protocol
* Memory hook fixes
* Clang support fixes
* Self tl multi-rail fix
* Thread safety fixes in IB/RDMA transport
* Compilation fixes with upstream rdma-core
* Multiple minor bugfixes (full list on github)
* Segfault fix for a code generated by armclang compiler
* UCP memory-domain index fix for zero-copy active messages
2018-10-15 -
- Update to v1.3.1 (fate#325996)
- Prevent potential out-of-order sending in shared memory active messages
- CUDA: Include cudamem.h in source tarball, pass cudaFree memory size
- Registration cache: fix large range lookup, handle shmat(REMAP)/mmap(FIXED)
- Limit IB CQE size for specific ARM boards
2018-08-09 -
- Update to v1.3.0 (bsc#1104159)
- Added stream-based communication API to UCP
- Added support for GPU platforms: Nvidia CUDA and AMD ROCM software stacks
- Added API for client/server based connection establishment
- Added support for TCP transport
- Support for InfiniBand tag-matching offload for DC and accelerated transports
- Multi-rail support for eager and rendezvous protocols
- Added support for tag-matching communications with CUDA buffers
- Added ucp_rkey_ptr() to obtain pointer for shared memory region
- Avoid progress overhead on unused transports
- Improved scalability of software tag-matching by using a hash table
- Added transparent huge-pages allocator
- Added non-blocking flush and disconnect for UCP
- Support fixed-address memory allocation via ucp_mem_map()
- Added ucp_tag_send_nbr() API to avoid send request allocation
- Support global addressing in all IB transports
- Add support for external epoll fd and edge-triggered events
- Added registration cache for knem
- Initial support for Java bindings
- Multiple bugfixes (full list on github)
- Drop UCT-UD-fixed-compilation-by-gcc8.patch as it was fixed upstream
- Refresh openucx-s390x-support.patch against latest sources
2018-06-13 -
- Remove libnuma-devel on s390x for older releases

See Also

Package Description
libucommon8-7.0.0-2.5.i586.rpm GNU uCommon Runtime library for portable C++ threading and sockets
libucommon8-7.0.0-2.5.x86_64.rpm GNU uCommon Runtime library for portable C++ threading and sockets
libucp-devel-1.5.0-2.1.x86_64.rpm Development files for Unified Communication Protocols (UC-P)
libucp0-1.5.0-2.1.x86_64.rpm Infiniband Unified Communication Protocols
libucpp13-1.3.5-2.2.i586.rpm A Mixed Integer Linear Programming (MILP) Solver Library
libucpp13-1.3.5-2.2.x86_64.rpm A Mixed Integer Linear Programming (MILP) Solver Library
libucs-devel-1.5.0-2.1.x86_64.rpm Development files for Unified Communication Services (UC-S)
libucs0-1.5.0-2.1.x86_64.rpm Infiniband Unicified Communication Services
libuct-devel-1.5.0-2.1.x86_64.rpm Development files for Unified Communication Transport (UC-T)
libuct0-1.5.0-2.1.x86_64.rpm Infiniband Unified Communication Transport
libudev-devel-241-2.1.i586.rpm Development files for libudev
libudev-devel-241-2.1.x86_64.rpm Development files for libudev
libudev-devel-32bit-241-2.1.x86_64.rpm Development files for libudev
libudev1-241-2.1.i586.rpm Dynamic library to access udev device information
libudev1-241-2.1.x86_64.rpm Dynamic library to access udev device information