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RELEASE_NOTES.md

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v4.1.1

  • Fixed DynamicPoolMap deallocate to make coalesce check O(1) again.

  • Initialize m_default_allocator to HOST if not set explicitly.

v4.1.0

  • QuickPool available via the C & Fortran APIs.

  • Resources are now created on-demand when accessed for the first time.

  • Peer access is no longer automatically enabled for CUDA and HIP.

  • Added cmake check to deterime if build subsystem capable of ASAN.

  • Fixed ASAN poisoning to limit it to what user originally requested and not rounded amount.

  • Improved resilliance of primary pool destructors so that giving back previously allocated blocks to a device that has already been cleaned up will no longer throw an error, but instead will now be logged and ignored.

v4.0.1

  • Fixed Umpire builds with MPI enabled

  • Added missing wrapUmpire.hpp to installation directory

v4.0.0

  • Added a FILE memory resource that allocates memory using mmap'd files. This can be used to allocate memory from the burst buffers on machines like Sierra and Lassen.

  • All pools now have an "alignment" parameter that can be provided to the constructor.

  • MemoryResourceTraits now includes a resource member that can be used to indentify the underlying resource for any Allocator.

  • Bundled tpl cxxopts has been replaced by CLI11 (only used when ENABLE_TOOLS=On)

  • Fixed memory leaks in DynamicPoolList, QuickPool.

  • Fixed reallocate operation when called on an allocation from a pool.

v3.0.0

  • Added support for multiple GPU devices, detected and registered as "DEVICE_N" where N is the device number.

  • Added support for capturing function backtraces with allocations.

  • Added AlignedAllocator to provide aligned allocations for host memory.

  • Fixed builds using -stdlib=c++

  • Switched to camp::Platform: Platform::cpu is now Platform::host

v2.1.0

  • Fixes a bug when calling reallocate with size 0.

  • Replay tool now supports replaying reallocate operations.

v2.0.0

  • ENABLE_DEVICE_CONST CMake option to control whether device constant memory is enabled. It is now disabled by default.

  • DeviceAllocator that provides a pool for allocations inside GPU kernels.

  • Added "unset" operations for removing CUDA memory advice.

  • Extended C/Fortran API with more allocation strategies.

  • NamedAllocator that allows creating a new allocator that passes allocations through to underlying strategy

  • UMPIRE_VERSION_X are now defined as macros, rather than constexpr variables

  • Fixed reallocate to properly handle case where size == 0

  • AllocationStrategy constructor parameters re-ordered for consistency

v1.1.0

  • Added symbol umpire_ver_1_detected to help detect version mismatches when linking multiple libraries that all use Umpire.

  • Re-introduced pool algorithm used in pre-1.0.0 releases as DynamicPoolList, and renamed current strategy to DynamicPoolMap. DynamicPool is now an alias to DynamicPoolMap.

  • Fix signature of C function umpire_resourcemanager_make_allocator_pool to take size_t not int.

  • Restored getActualSize for all Allocator types

v1.0.1

  • Fixed a bug in DynamicPool where memory could be leaked when allocating a new block using the "minimum size" for an allocation smaller than the block.

v1.0.0

  • Umpire is MPI-aware (outputs rank information to logs and replays) when configured with the option ENABLE_MPI=On, and umpire::initialize(MPI_Comm comm) must be called.

  • AllocationStrategies may be wrapped with multiple extra layers. To "unwrap" an Allocator to a specific strategy, the umpire::util::unwrap_allocator method can be used, for example:

    auto dynamic_pool = umpire::util::unwrap_allocatorumpire::strategy::DynamicPool(allocator);

    This will impact users who have been using DynamicPool::coalesce. The cookbook recipe has been updated accordingly, and the previous code snippet can be used.

  • Umpire now directs log and replay output to files, one per process. The filenames can be controlled by the environment variable UMPIRE_OUTPUT_BASENAME

  • ENABLE_CUDA now set to Off by default.

  • Allocations for 0 bytes now always return a valid pointer that cannot be read or written. These pointers can be deallocated.