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Clarifies the documentation for dense norm computation #784

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merged 2 commits into from
Jun 7, 2021
Merged

Clarifies the documentation for dense norm computation #784

merged 2 commits into from
Jun 7, 2021

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MarcelKoch
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The updated documentation explicitly mentions that the norm is computed for each column vector. This is similar to the documentation for compute_dot and compute_conj_dot, which behave in the same way.

@MarcelKoch MarcelKoch added the is:enhancement An improvement of an existing feature. label Jun 4, 2021
@hartwiganzt
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Congrats to the first pull request on your third day of work!

@upsj
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upsj commented Jun 4, 2021

Thanks for the PR! Two small things: 1. It looks like the email address you are using in git isn't associated with your Github account. It probably makes sense to add it to the account or or change it to the one you are using in your Github account so you appear in the contributor list. and 2. talking about contributor lists, could you add yourself to the contributors.txt (sorted alphabetically by last name)

@pratikvn pratikvn added reg:documentation This is related to documentation. 1:ST:ready-for-review This PR is ready for review type:matrix-format This is related to the Matrix formats labels Jun 4, 2021
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IMO this is just a first-aid fix. There needs to be a more clear distinction between computing the L2 norm (or more fittingly the Frobenius norm) on a general NxM dense matrix and computing a vector with the column-wise norms.

Ideally, this function would compute the Frobenius norm and an extra function would compute the column-wise norms.

tcojean
tcojean approved these changes Jun 4, 2021
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LGTM.
As stated by Tobias, please add yourself to the contributors.txt.

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upsj commented Jun 4, 2021

Related issue: #72

@MarcelKoch
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Is it necessary to create a new PR for the change in contributors.txt?

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upsj commented Jun 4, 2021

No, just push a new commit to the branch :)

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Codecov Report

Merging #784 (8260802) into develop (2f61846) will decrease coverage by 0.01%.
The diff coverage is n/a.

Impacted file tree graph

@@             Coverage Diff             @@
##           develop     #784      +/-   ##
===========================================
- Coverage    94.26%   94.24%   -0.02%     
===========================================
  Files          400      400              
  Lines        31578    31579       +1     
===========================================
- Hits         29768    29763       -5     
- Misses        1810     1816       +6
Impacted Files Coverage Δ
include/ginkgo/core/matrix/dense.hpp 95.12% <ø> (ø)
omp/reorder/rcm_kernels.cpp 94.44% <0.00%> (-3.70%) ⬇️

Continue to review full report at Codecov.

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@upsj upsj added 1:ST:ready-to-merge This PR is ready to merge. and removed 1:ST:ready-for-review This PR is ready for review labels Jun 6, 2021
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tcojean commented Jun 6, 2021

rebase!

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yhmtsai commented Jun 7, 2021

rebase!

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sonarcloud bot commented Jun 7, 2021

Kudos, SonarCloud Quality Gate passed!

Bug A 0 Bugs
Vulnerability A 0 Vulnerabilities
Security Hotspot A 0 Security Hotspots
Code Smell A 0 Code Smells

No Coverage information No Coverage information
0.0% 0.0% Duplication

thoasm
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LGTM

@MarcelKoch MarcelKoch merged commit 6f33ce7 into develop Jun 7, 2021
@MarcelKoch MarcelKoch deleted the clarify-dense-norm-doc branch June 7, 2021 09:48
tcojean added a commit that referenced this pull request Aug 20, 2021
@tcojean
Merge pull request #857 from ginkgo-project/release/1.4.0
f46cd79 
Ginkgo release 1.4.0

The Ginkgo team is proud to announce the new Ginkgo minor release 1.4.0. This
release brings most of the Ginkgo functionality to the Intel DPC++ ecosystem
which enables Intel-GPU and CPU execution. The only Ginkgo features which have
not been ported yet are some preconditioners.

Ginkgo's mixed-precision support is greatly enhanced thanks to:
1. The new Accessor concept, which allows writing kernels featuring on-the-fly
memory compression, among other features. The accessor can be used as
header-only, see the [accessor BLAS benchmarks repository](https://github.com/ginkgo-project/accessor-BLAS/tree/develop) as a usage example.
2. All LinOps now transparently support mixed-precision execution. By default,
this is done through a temporary copy which may have a performance impact but
already allows mixed-precision research.

Native mixed-precision ELL kernels are implemented which do not see this cost.
The accessor is also leveraged in a new CB-GMRES solver which allows for
performance improvements by compressing the Krylov basis vectors. Many other
features have been added to Ginkgo, such as reordering support, a new IDR
solver, Incomplete Cholesky preconditioner, matrix assembly support (only CPU
for now), machine topology information, and more!

Supported systems and requirements:
+ For all platforms, cmake 3.13+
+ C++14 compliant compiler
+ Linux and MacOS
  + gcc: 5.3+, 6.3+, 7.3+, all versions after 8.1+
  + clang: 3.9+
  + Intel compiler: 2018+
  + Apple LLVM: 8.0+
  + CUDA module: CUDA 9.0+
  + HIP module: ROCm 3.5+
  + DPC++ module: Intel OneAPI 2021.3. Set the CXX compiler to `dpcpp`.
+ Windows
  + MinGW and Cygwin: gcc 5.3+, 6.3+, 7.3+, all versions after 8.1+
  + Microsoft Visual Studio: VS 2019
  + CUDA module: CUDA 9.0+, Microsoft Visual Studio
  + OpenMP module: MinGW or Cygwin.


Algorithm and important feature additions:
+ Add a new DPC++ Executor for SYCL execution and other base utilities
  [#648](#648), [#661](#661), [#757](#757), [#832](#832)
+ Port matrix formats, solvers and related kernels to DPC++. For some kernels,
  also make use of a shared kernel implementation for all executors (except
  Reference). [#710](#710), [#799](#799), [#779](#779), [#733](#733), [#844](#844), [#843](#843), [#789](#789), [#845](#845), [#849](#849), [#855](#855), [#856](#856)
+ Add accessors which allow multi-precision kernels, among other things.
  [#643](#643), [#708](#708)
+ Add support for mixed precision operations through apply in all LinOps. [#677](#677)
+ Add incomplete Cholesky factorizations and preconditioners as well as some
  improvements to ILU. [#672](#672), [#837](#837), [#846](#846)
+ Add an AMGX implementation and kernels on all devices but DPC++.
  [#528](#528), [#695](#695), [#860](#860)
+ Add a new mixed-precision capability solver, Compressed Basis GMRES
  (CB-GMRES). [#693](#693), [#763](#763)
+ Add the IDR(s) solver. [#620](#620)
+ Add a new fixed-size block CSR matrix format (for the Reference executor).
  [#671](#671), [#730](#730)
+ Add native mixed-precision support to the ELL format. [#717](#717), [#780](#780)
+ Add Reverse Cuthill-McKee reordering [#500](#500), [#649](#649)
+ Add matrix assembly support on CPUs. [#644](#644)
+ Extends ISAI from triangular to general and spd matrices. [#690](#690)

Other additions:
+ Add the possibility to apply real matrices to complex vectors.
  [#655](#655), [#658](#658)
+ Add functions to compute the absolute of a matrix format. [#636](#636)
+ Add symmetric permutation and improve existing permutations.
  [#684](#684), [#657](#657), [#663](#663)
+ Add a MachineTopology class with HWLOC support [#554](#554), [#697](#697)
+ Add an implicit residual norm criterion. [#702](#702), [#818](#818), [#850](#850)
+ Row-major accessor is generalized to more than 2 dimensions and a new
  "block column-major" accessor has been added. [#707](#707)
+ Add an heat equation example. [#698](#698), [#706](#706)
+ Add ccache support in CMake and CI. [#725](#725), [#739](#739)
+ Allow tuning and benchmarking variables non intrusively. [#692](#692)
+ Add triangular solver benchmark [#664](#664)
+ Add benchmarks for BLAS operations [#772](#772), [#829](#829)
+ Add support for different precisions and consistent index types in benchmarks.
  [#675](#675), [#828](#828)
+ Add a Github bot system to facilitate development and PR management.
  [#667](#667), [#674](#674), [#689](#689), [#853](#853)
+ Add Intel (DPC++) CI support and enable CI on HPC systems. [#736](#736), [#751](#751), [#781](#781)
+ Add ssh debugging for Github Actions CI. [#749](#749)
+ Add pipeline segmentation for better CI speed. [#737](#737)


Changes:
+ Add a Scalar Jacobi specialization and kernels. [#808](#808), [#834](#834), [#854](#854)
+ Add implicit residual log for solvers and benchmarks. [#714](#714)
+ Change handling of the conjugate in the dense dot product. [#755](#755)
+ Improved Dense stride handling. [#774](#774)
+ Multiple improvements to the OpenMP kernels performance, including COO,
an exclusive prefix sum, and more. [#703](#703), [#765](#765), [#740](#740)
+ Allow specialization of submatrix and other dense creation functions in solvers. [#718](#718)
+ Improved Identity constructor and treatment of rectangular matrices. [#646](#646)
+ Allow CUDA/HIP executors to select allocation mode. [#758](#758)
+ Check if executors share the same memory. [#670](#670)
+ Improve test install and smoke testing support. [#721](#721)
+ Update the JOSS paper citation and add publications in the documentation.
  [#629](#629), [#724](#724)
+ Improve the version output. [#806](#806)
+ Add some utilities for dim and span. [#821](#821)
+ Improved solver and preconditioner benchmarks. [#660](#660)
+ Improve benchmark timing and output. [#669](#669), [#791](#791), [#801](#801), [#812](#812)


Fixes:
+ Sorting fix for the Jacobi preconditioner. [#659](#659)
+ Also log the first residual norm in CGS [#735](#735)
+ Fix BiCG and HIP CSR to work with complex matrices. [#651](#651)
+ Fix Coo SpMV on strided vectors. [#807](#807)
+ Fix segfault of extract_diagonal, add short-and-fat test. [#769](#769)
+ Fix device_reset issue by moving counter/mutex to device. [#810](#810)
+ Fix `EnableLogging` superclass. [#841](#841)
+ Support ROCm 4.1.x and breaking HIP_PLATFORM changes. [#726](#726)
+ Decreased test size for a few device tests. [#742](#742)
+ Fix multiple issues with our CMake HIP and RPATH setup.
  [#712](#712), [#745](#745), [#709](#709)
+ Cleanup our CMake installation step. [#713](#713)
+ Various simplification and fixes to the Windows CMake setup. [#720](#720), [#785](#785)
+ Simplify third-party integration. [#786](#786)
+ Improve Ginkgo device arch flags management. [#696](#696)
+ Other fixes and improvements to the CMake setup.
  [#685](#685), [#792](#792), [#705](#705), [#836](#836)
+ Clarification of dense norm documentation [#784](#784)
+ Various development tools fixes and improvements [#738](#738), [#830](#830), [#840](#840)
+ Make multiple operators/constructors explicit. [#650](#650), [#761](#761)
+ Fix some issues, memory leaks and warnings found by MSVC.
  [#666](#666), [#731](#731)
+ Improved solver memory estimates and consistent iteration counts [#691](#691)
+ Various logger improvements and fixes [#728](#728), [#743](#743), [#754](#754)
+ Fix for ForwardIterator requirements in iterator_factory. [#665](#665)
+ Various benchmark fixes. [#647](#647), [#673](#673), [#722](#722)
+ Various CI fixes and improvements. [#642](#642), [#641](#641), [#795](#795), [#783](#783), [#793](#793), [#852](#852)


Related PR: #857
tcojean added a commit that referenced this pull request Aug 23, 2021
@tcojean
Merge release 1.4.0 to master
f811917 
Release 1.4.0 to master

The Ginkgo team is proud to announce the new Ginkgo minor release 1.4.0. This
release brings most of the Ginkgo functionality to the Intel DPC++ ecosystem
which enables Intel-GPU and CPU execution. The only Ginkgo features which have
not been ported yet are some preconditioners.

Ginkgo's mixed-precision support is greatly enhanced thanks to:
1. The new Accessor concept, which allows writing kernels featuring on-the-fly
memory compression, among other features. The accessor can be used as
header-only, see the [accessor BLAS benchmarks repository](https://github.com/ginkgo-project/accessor-BLAS/tree/develop) as a usage example.
2. All LinOps now transparently support mixed-precision execution. By default,
this is done through a temporary copy which may have a performance impact but
already allows mixed-precision research.

Native mixed-precision ELL kernels are implemented which do not see this cost.
The accessor is also leveraged in a new CB-GMRES solver which allows for
performance improvements by compressing the Krylov basis vectors. Many other
features have been added to Ginkgo, such as reordering support, a new IDR
solver, Incomplete Cholesky preconditioner, matrix assembly support (only CPU
for now), machine topology information, and more!

Supported systems and requirements:
+ For all platforms, cmake 3.13+
+ C++14 compliant compiler
+ Linux and MacOS
  + gcc: 5.3+, 6.3+, 7.3+, all versions after 8.1+
  + clang: 3.9+
  + Intel compiler: 2018+
  + Apple LLVM: 8.0+
  + CUDA module: CUDA 9.0+
  + HIP module: ROCm 3.5+
  + DPC++ module: Intel OneAPI 2021.3. Set the CXX compiler to `dpcpp`.
+ Windows
  + MinGW and Cygwin: gcc 5.3+, 6.3+, 7.3+, all versions after 8.1+
  + Microsoft Visual Studio: VS 2019
  + CUDA module: CUDA 9.0+, Microsoft Visual Studio
  + OpenMP module: MinGW or Cygwin.


Algorithm and important feature additions:
+ Add a new DPC++ Executor for SYCL execution and other base utilities
  [#648](#648), [#661](#661), [#757](#757), [#832](#832)
+ Port matrix formats, solvers and related kernels to DPC++. For some kernels,
  also make use of a shared kernel implementation for all executors (except
  Reference). [#710](#710), [#799](#799), [#779](#779), [#733](#733), [#844](#844), [#843](#843), [#789](#789), [#845](#845), [#849](#849), [#855](#855), [#856](#856)
+ Add accessors which allow multi-precision kernels, among other things.
  [#643](#643), [#708](#708)
+ Add support for mixed precision operations through apply in all LinOps. [#677](#677)
+ Add incomplete Cholesky factorizations and preconditioners as well as some
  improvements to ILU. [#672](#672), [#837](#837), [#846](#846)
+ Add an AMGX implementation and kernels on all devices but DPC++.
  [#528](#528), [#695](#695), [#860](#860)
+ Add a new mixed-precision capability solver, Compressed Basis GMRES
  (CB-GMRES). [#693](#693), [#763](#763)
+ Add the IDR(s) solver. [#620](#620)
+ Add a new fixed-size block CSR matrix format (for the Reference executor).
  [#671](#671), [#730](#730)
+ Add native mixed-precision support to the ELL format. [#717](#717), [#780](#780)
+ Add Reverse Cuthill-McKee reordering [#500](#500), [#649](#649)
+ Add matrix assembly support on CPUs. [#644](#644)
+ Extends ISAI from triangular to general and spd matrices. [#690](#690)

Other additions:
+ Add the possibility to apply real matrices to complex vectors.
  [#655](#655), [#658](#658)
+ Add functions to compute the absolute of a matrix format. [#636](#636)
+ Add symmetric permutation and improve existing permutations.
  [#684](#684), [#657](#657), [#663](#663)
+ Add a MachineTopology class with HWLOC support [#554](#554), [#697](#697)
+ Add an implicit residual norm criterion. [#702](#702), [#818](#818), [#850](#850)
+ Row-major accessor is generalized to more than 2 dimensions and a new
  "block column-major" accessor has been added. [#707](#707)
+ Add an heat equation example. [#698](#698), [#706](#706)
+ Add ccache support in CMake and CI. [#725](#725), [#739](#739)
+ Allow tuning and benchmarking variables non intrusively. [#692](#692)
+ Add triangular solver benchmark [#664](#664)
+ Add benchmarks for BLAS operations [#772](#772), [#829](#829)
+ Add support for different precisions and consistent index types in benchmarks.
  [#675](#675), [#828](#828)
+ Add a Github bot system to facilitate development and PR management.
  [#667](#667), [#674](#674), [#689](#689), [#853](#853)
+ Add Intel (DPC++) CI support and enable CI on HPC systems. [#736](#736), [#751](#751), [#781](#781)
+ Add ssh debugging for Github Actions CI. [#749](#749)
+ Add pipeline segmentation for better CI speed. [#737](#737)


Changes:
+ Add a Scalar Jacobi specialization and kernels. [#808](#808), [#834](#834), [#854](#854)
+ Add implicit residual log for solvers and benchmarks. [#714](#714)
+ Change handling of the conjugate in the dense dot product. [#755](#755)
+ Improved Dense stride handling. [#774](#774)
+ Multiple improvements to the OpenMP kernels performance, including COO,
an exclusive prefix sum, and more. [#703](#703), [#765](#765), [#740](#740)
+ Allow specialization of submatrix and other dense creation functions in solvers. [#718](#718)
+ Improved Identity constructor and treatment of rectangular matrices. [#646](#646)
+ Allow CUDA/HIP executors to select allocation mode. [#758](#758)
+ Check if executors share the same memory. [#670](#670)
+ Improve test install and smoke testing support. [#721](#721)
+ Update the JOSS paper citation and add publications in the documentation.
  [#629](#629), [#724](#724)
+ Improve the version output. [#806](#806)
+ Add some utilities for dim and span. [#821](#821)
+ Improved solver and preconditioner benchmarks. [#660](#660)
+ Improve benchmark timing and output. [#669](#669), [#791](#791), [#801](#801), [#812](#812)


Fixes:
+ Sorting fix for the Jacobi preconditioner. [#659](#659)
+ Also log the first residual norm in CGS [#735](#735)
+ Fix BiCG and HIP CSR to work with complex matrices. [#651](#651)
+ Fix Coo SpMV on strided vectors. [#807](#807)
+ Fix segfault of extract_diagonal, add short-and-fat test. [#769](#769)
+ Fix device_reset issue by moving counter/mutex to device. [#810](#810)
+ Fix `EnableLogging` superclass. [#841](#841)
+ Support ROCm 4.1.x and breaking HIP_PLATFORM changes. [#726](#726)
+ Decreased test size for a few device tests. [#742](#742)
+ Fix multiple issues with our CMake HIP and RPATH setup.
  [#712](#712), [#745](#745), [#709](#709)
+ Cleanup our CMake installation step. [#713](#713)
+ Various simplification and fixes to the Windows CMake setup. [#720](#720), [#785](#785)
+ Simplify third-party integration. [#786](#786)
+ Improve Ginkgo device arch flags management. [#696](#696)
+ Other fixes and improvements to the CMake setup.
  [#685](#685), [#792](#792), [#705](#705), [#836](#836)
+ Clarification of dense norm documentation [#784](#784)
+ Various development tools fixes and improvements [#738](#738), [#830](#830), [#840](#840)
+ Make multiple operators/constructors explicit. [#650](#650), [#761](#761)
+ Fix some issues, memory leaks and warnings found by MSVC.
  [#666](#666), [#731](#731)
+ Improved solver memory estimates and consistent iteration counts [#691](#691)
+ Various logger improvements and fixes [#728](#728), [#743](#743), [#754](#754)
+ Fix for ForwardIterator requirements in iterator_factory. [#665](#665)
+ Various benchmark fixes. [#647](#647), [#673](#673), [#722](#722)
+ Various CI fixes and improvements. [#642](#642), [#641](#641), [#795](#795), [#783](#783), [#793](#793), [#852](#852)

Related PR: #866
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@upsj upsj upsj approved these changes

@pratikvn pratikvn pratikvn approved these changes

@thoasm thoasm thoasm approved these changes

@hartwiganzt hartwiganzt hartwiganzt approved these changes

@tcojean tcojean tcojean approved these changes

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@MarcelKoch @hartwiganzt @upsj @tcojean @yhmtsai @pratikvn @thoasm