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merged 3 commits into from
Feb 20, 2023
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release 0.7.2 #598

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c115aff
release 0.7.2 preparations
cnpetra Feb 17, 2023
df8869a
Update CHANGELOG.md
cnpetra Feb 17, 2023
00fa7d5
Update CHANGELOG.md
cnpetra Feb 20, 2023
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37 changes: 37 additions & 0 deletions CHANGELOG.md
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# Change Log
All notable changes to HiOp are documented in this file.

## Version 0.7.2: Execution spaces abstractions and misc fixes
This release hosts a series of comprehensive internal developments and software re-engineering to improve the portability and performance on accelerators/GPU platforms. No changes to the user interface permeated under this release.

### Notable new features

A new execution space abstraction is introduced to allow multiple hardware backends to run concurrently. The proposed design differentiates between "memory backend" and "execution policies" to allow using RAJA with Umpire-managed memory, RAJA with Cuda- or Hip-managed memory, RAJA with std memory, Cuda/Hip kernels with Cuda-/Hip- or Umpire-managed memory, etc.

* Execution spaces: support for memory backends and execution policies by @cnpetra in https://github.com/LLNL/hiop/pull/543
* Build: Cuda without raja by @cnpetra in https://github.com/LLNL/hiop/pull/579
* Update of RAJA-based dense matrix to support runtime execution spaces by @cnpetra in https://github.com/LLNL/hiop/pull/580
* Reorganization of device namespace by @cnpetra in https://github.com/LLNL/hiop/pull/582
* RAJA Vector int with ExecSpace by @cnpetra in https://github.com/LLNL/hiop/pull/583
* Instrumentation of host vectors with execution spaces by @cnpetra in https://github.com/LLNL/hiop/pull/584
* Remove copy from/to device methods in vector classes by @cnpetra in https://github.com/LLNL/hiop/pull/587
* Add support for Raja with OpenMP into LLNL CI by @nychiang in https://github.com/LLNL/hiop/pull/566

New vector classes using vendor-provided API were introduced and documentation was updated/improved
* Development of `hiopVectorCuda` by @nychiang in https://github.com/LLNL/hiop/pull/572
* Implementation of `hiopVectorHip` by @nychiang in https://github.com/LLNL/hiop/pull/590
* Update user manual by @nychiang in https://github.com/LLNL/hiop/pull/591
* Update the code comments in `hiopVector` classes by @nychiang in https://github.com/LLNL/hiop/pull/592

Refinement of triangular solver implementation for Ginkgo by @fritzgoebel in https://github.com/LLNL/hiop/pull/585

### Bug fixes
* Refine the computation in normal equation system by @nychiang in https://github.com/LLNL/hiop/pull/530
* Fix static culibos issue #567 by @nychiang in https://github.com/LLNL/hiop/pull/568
* Fix segfault, remove nonsymmetric ginkgo solver by @fritzgoebel in https://github.com/LLNL/hiop/pull/548
* Calculate the inverse objective scale correctly. by @tepperly in https://github.com/LLNL/hiop/pull/570
* Fix `hiopVectorRajaPar::copyToStartingAt_w_pattern` by @nychiang in https://github.com/LLNL/hiop/pull/569
* Gitlab pipeline refactor by @CameronRutherford in https://github.com/LLNL/hiop/pull/597

### New Contributors
* @tepperly made their first contribution in https://github.com/LLNL/hiop/pull/570

**Full Changelog**: https://github.com/LLNL/hiop/compare/v0.7.1...v0.7.2

## Version 0.7.1: Miscellaneous fixes to build system
This minor release fixes a couple of issues found in the build system after the major release 0.7 of HiOp.

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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Expand Up @@ -11,7 +11,7 @@ if (POLICY CMP0074)
cmake_policy(SET CMP0074 NEW)
endif ()

project (hiop VERSION "0.7.1")
project (hiop VERSION "0.7.2")

string(TIMESTAMP HIOP_RELEASE_DATE "%Y-%m-%d")

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