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| --- | ||
| layout: post | ||
| title: "Fortran newsletter: September 2021" | ||
| category: newsletter | ||
| author: Milan Curcic, Alexis Perry-Holby, Sebastian Ehlert, Ondřej Čertík | ||
| --- | ||
|
|
||
| Welcome to the September 2021 edition of the monthly Fortran newsletter. | ||
| The newsletter comes out at the beginning of every month and details | ||
| Fortran news from the previous month. | ||
|
|
||
| <ul id="page-nav"></ul> | ||
|
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| ## fortran-lang.org | ||
|
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| This month we've had several updates to the website: | ||
|
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| * [#303](https://github.com/fortran-lang/fortran-lang.org/pull/303): | ||
| Add NJOY to package index | ||
|
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||
| ### Work in progress | ||
|
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||
| * [#302](https://github.com/fortran-lang/fortran-lang.org/pull/302) (WIP): | ||
| Update Silverfrost compiler description. | ||
| * [#300](https://github.com/fortran-lang/fortran-lang.org/pull/300) (WIP): | ||
| Add QCxMS to package index | ||
| * [#246](https://github.com/fortran-lang/fortran-lang.org/pull/246) (WIP): | ||
| Transferring fortran90.org "Fortran Best Practices" into a mini-book | ||
| * [#201](https://github.com/fortran-lang/fortran-lang.org/pull/201) (WIP): | ||
| Internationalization for fortran-lang | ||
|
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||
| [Let us know](https://github.com/fortran-lang/fortran-lang.org/issues) if you have any suggestions for the website and its content. | ||
| We welcome any new contributors to the website and the tutorials page in particular - see the [contributor guide](https://github.com/fortran-lang/fortran-lang.org/blob/master/CONTRIBUTING.md) for how to get started. | ||
|
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| ## Fortran Standard Library | ||
|
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| Here's what's new in stdlib: | ||
|
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| * [#467](https://github.com/fortran-lang/stdlib/pull/467): | ||
| Implemented move_alloc for string_type | ||
| * [#470](https://github.com/fortran-lang/stdlib/pull/470): | ||
| Revival string list | ||
| * [#481](https://github.com/fortran-lang/stdlib/pull/481): | ||
| [stdlib_linalg] Update eye function. | ||
| * [#493](https://github.com/fortran-lang/stdlib/pull/493): | ||
| Update copyright and remove old artifact | ||
| * [#444](https://github.com/fortran-lang/stdlib/pull/444): | ||
| Add format_string routine to format other types to strings | ||
| * [#483](https://github.com/fortran-lang/stdlib/pull/483): | ||
| Remove GCC Fortran MinGW 8.4.0 from known to work list | ||
|
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| ### Work in progress | ||
|
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| * [#501](https://github.com/fortran-lang/stdlib/pull/501) (WIP): | ||
| Minor updates to README.md | ||
| * [#500](https://github.com/fortran-lang/stdlib/pull/500) (WIP): | ||
| Selection algorithms | ||
| * [#499](https://github.com/fortran-lang/stdlib/pull/499) (WIP): | ||
| [stdlib_linalg] matrix property checks | ||
| * [#498](https://github.com/fortran-lang/stdlib/pull/498) (WIP): | ||
| [stdlib_math] add `arg/argd/argpi` | ||
| * [#494](https://github.com/fortran-lang/stdlib/pull/494) (WIP): | ||
| Add testing module to allow better structuring of test suites | ||
| * [#491](https://github.com/fortran-lang/stdlib/pull/491) (WIP): | ||
| Stdlib linked list | ||
| * [#488](https://github.com/fortran-lang/stdlib/pull/488) (WIP): | ||
| [stdlib_math] add `is_close` routines. | ||
| * [#478](https://github.com/fortran-lang/stdlib/pull/478) (WIP): | ||
| [stdlib_linalg] Add zeros, ones function. | ||
| * [#475](https://github.com/fortran-lang/stdlib/pull/475) (WIP): | ||
| Generating sorting subroutines specific to `character` type with fypp | ||
| * [#473](https://github.com/fortran-lang/stdlib/pull/473) (WIP): | ||
| Error stop improvements | ||
| * [#455](https://github.com/fortran-lang/stdlib/pull/455) (WIP): | ||
| stdlib_hash: waterhash algorithm | ||
| * [#452](https://github.com/fortran-lang/stdlib/pull/452) (WIP): | ||
| Implementation of a map data type | ||
| * [#445](https://github.com/fortran-lang/stdlib/pull/445) (WIP): | ||
| [stdlib_io] `disp`(display your data) | ||
| * [#437](https://github.com/fortran-lang/stdlib/pull/437) (WIP): | ||
| [FPM] add fpm support | ||
| * [#363](https://github.com/fortran-lang/stdlib/pull/363) (WIP): | ||
| Sorting string's characters according to their ASCII values | ||
| * [#353](https://github.com/fortran-lang/stdlib/pull/353) (WIP): | ||
| Initial checkin for a module for tolerant comparison of reals | ||
| * [#286](https://github.com/fortran-lang/stdlib/pull/286) (WIP): | ||
| Probability Distribution and Statistical Functions -- Beta Distribution Module | ||
| * [#278](https://github.com/fortran-lang/stdlib/pull/278) (WIP): | ||
| Probability Distribution and Statistical Functions -- Gamma Distribution Module | ||
| * [#276](https://github.com/fortran-lang/stdlib/pull/276) (WIP): | ||
| Probability Distribution and Statistical Functions -- Exponential Distribution Module | ||
| * [#273](https://github.com/fortran-lang/stdlib/pull/273) (WIP): | ||
| Probability Distribution and Statistical Functions -- Normal Distribution Module | ||
| * [#272](https://github.com/fortran-lang/stdlib/pull/272) (WIP): | ||
| Probability Distribution and Statistical Functions -- Uniform Distribution Module | ||
| * [#189](https://github.com/fortran-lang/stdlib/pull/189) (WIP): | ||
| Initial implementation of COO / CSR sparse format | ||
|
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||
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| Please help improve stdlib by testing and [reviewing pull requests](https://github.com/fortran-lang/stdlib/issues?q=is%3Apr+is%3Aopen+label%3A%22reviewers+needed%22)! | ||
|
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| The candidate for file system operations to be included in stdlib is being developed by | ||
| [@MarDiehl](https://github.com/MarDiehl) and [@arjenmarkus](https://github.com/arjenmarkus) | ||
| in [this repository](https://github.com/MarDiehl/stdlib_os). | ||
| Please try it out and let us know how it works, if there are any issues, or if the API can be improved. | ||
|
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| ## Fortran Package Manager | ||
|
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| Here's what's new in fpm: | ||
|
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| * [Version 0.4.0](https://github.com/fortran-lang/fpm/releases/tag/v0.4.0): | ||
| Alpha release update | ||
| * [#546](https://github.com/fortran-lang/fpm/pull/546): | ||
| Update version for release 0.4.0 | ||
| * [#548](https://github.com/fortran-lang/fpm/pull/548): | ||
| Fix build on MacOS/ARM64 | ||
| * [#527](https://github.com/fortran-lang/fpm/pull/527): | ||
| Add objects for handling compiler and archiver | ||
| * [#536](https://github.com/fortran-lang/fpm/pull/536): | ||
| Always call `git init` in fpm new when backfilling | ||
| * [#533](https://github.com/fortran-lang/fpm/pull/533): | ||
| Allow extra section in package manifest | ||
| * [#528](https://github.com/fortran-lang/fpm/pull/528): | ||
| Generate `build/.gitignore` | ||
|
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| ### Work in progress | ||
|
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| * [#539](https://github.com/fortran-lang/fpm/pull/539) (WIP): | ||
| Add parent packages into dependency tree | ||
| * [#521](https://github.com/fortran-lang/fpm/pull/521) (WIP): | ||
| Expand tabs in source parsing | ||
| * [#506](https://github.com/fortran-lang/fpm/pull/506) (WIP): | ||
| Initial implementation of implicit_none | ||
| * [#498](https://github.com/fortran-lang/fpm/pull/498) (WIP): | ||
| Compiler flags profiles | ||
|
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| `fpm` is still in early development and we need as much help as we can get. | ||
| Here's how you can help today: | ||
|
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| * Use it and let us know what you think! Read the [fpm packaging guide](https://github.com/fortran-lang/fpm/blob/master/PACKAGING.md) to learn how to build your package with fpm, and the [manifest reference](https://github.com/fortran-lang/fpm/blob/master/manifest-reference.md) to learn what are all the things that you can specify in the fpm.toml file. | ||
| * Browse existing *fpm* packages on the [fortran-lang website](https://fortran-lang.org/packages/fpm) | ||
| * Browse the [open issues](https://github.com/fortran-lang/fpm/issues) and see if you can help implement any fixes or features. | ||
| * Adapt your Fortran package for fpm and submit it to the [Registry](https://github.com/fortran-lang/fpm-registry). | ||
| * Improve the documentation. | ||
|
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| The short-term goal of fpm is to make development and installation of Fortran packages with dependencies easier. | ||
| Its long term goal is to build a rich and decentralized ecosystem of Fortran packages and create a healthy | ||
| environment in which new open source Fortran projects are created and published with ease. | ||
|
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| ## FFTPACK | ||
|
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||
| Zuo Zhihua ([@zoziha](https://github.com/zoziha)) and Ondřej Čertík ([@certik](https://github.com/certik)) started maintaining the public domain project FFTPACK under the Fortran-lang namespace. | ||
| The project is readily available for usage in with fpm. | ||
|
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| Here is what is new in FFTPACK: | ||
|
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| * [#10](https://github.com/fortran-lang/fftpack/pull/10): | ||
| Add `(i)qct/dcosqi/dcosqf/dcosqb` interfaces for quarter wave data. | ||
| * [#7](https://github.com/fortran-lang/fftpack/pull/7): | ||
| Add `dzffti/dzfftf/dzfftb` interfaces | ||
| * [#4](https://github.com/fortran-lang/fftpack/pull/4): | ||
| Improve fft interface for `complex` sequences: `(i)fft/zffti/zfftf/zfftb` | ||
| * [#6](https://github.com/fortran-lang/fftpack/pull/6): | ||
| Add `(i)rfft/dffti/dfftf/dfftb` interface and ready to move to `fortran-lang` | ||
| * [#5](https://github.com/fortran-lang/fftpack/pull/5): | ||
| Add `fftshift/ifftshift` | ||
| * [#3](https://github.com/fortran-lang/fftpack/pull/3): | ||
| Add CI: fpm.yml | ||
|
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| ### Work in progress | ||
|
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| * [#11](https://github.com/fortran-lang/fftpack/pull/11) (WIP): | ||
| Add `(i)dct/dcosti/dcost` interfaces. | ||
|
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||
| Feedback and ideas for this project are welcome. | ||
|
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| ## Compilers | ||
|
|
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| ### Flang | ||
|
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| Recent development updates: | ||
|
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| * New Driver and CMake integration: | ||
| * The new driver has replaced the old, hence f18 has been deleted. | ||
| * flang-new (aka. the new driver) now drives the flang bash script before an external compiler is called. | ||
| * Code-generation work is ongoing. | ||
| * Work is now proceeding to enable CMake to recognize the compiler and set the appropriate options for build configurations. | ||
| * FIR (Fortran IR - a dialect of MLIR): | ||
| * Fortran 95 lowering and runtime support is nearing completion, particularly of intrinsics | ||
| * Code upstreaming will begin again in earnest once F95 is deemed complete | ||
| * OpenMP | ||
| * Nesting of region semantic checks | ||
| * enter_data MLIR to LLVM IR lowering | ||
| * Semantic checks for allocate directive | ||
| * Lowering for various modifiers for the schedule clause | ||
| * Pretty printer and parser for omp.target operation | ||
| * Semantic checks for linear, nested barrier, allocate directive | ||
| * Progress with firstprivate, critical, collapse, ordered, reduction | ||
| * Lift -Werror checks into local functions | ||
| * Document the flang wrapper script | ||
| * Fix the extent calculation when upper bounds are less than lower bounds | ||
| * Fix list-directed plural repeated null values at end of record | ||
| * Fix build failure on MacOS involving std::clock_t | ||
| * Fix error messages on Windows. | ||
| * Disable Plugins in out-of-tree builds | ||
| * Correct off-by-one error in SET_EXPONENT | ||
|
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||
| Call notes are recorded and available upon request [here](https://docs.google.com/document/d/10T-S2J3GrahpG4Ooif93NSTz2zBW0MQc_RlwHi0-afY). Please contact Alexis Perry-Holby at aperry@lanl.gov for document access. | ||
|
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||
| ### LFortran | ||
|
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| * 168 | ||
| [merged](https://gitlab.com/lfortran/lfortran/-/merge_requests?scope=all&state=merged) | ||
| Merge Requests in August 2021 | ||
| * The following people have contributed code to LFortran in August: | ||
| * Ondřej Čertík | ||
| * Thirumalai Shaktivel | ||
| * Rohit Goswami | ||
| * Gagandeep Singh | ||
| * Andrew Best | ||
| * Carlos Une | ||
| * Sebastian Ehlert got LFortran working with fpm | ||
| * Many people have reported bugs (thank you all!) | ||
| * Our 3 Google Summer of Code (GSoC) students have successfully finished their | ||
| projects. Here are their final reports: | ||
| * Gagandeep Singh: [https://czgdp1807.github.io/2021/08/16/z_final_report.html](https://czgdp1807.github.io/2021/08/16/z_final_report.html) | ||
| * Thirumalai Shaktivel: [https://gist.github.com/Thirumalai-Shaktivel/c2a1aaa5239e792e499eaa8942987519](https://gist.github.com/Thirumalai-Shaktivel/c2a1aaa5239e792e499eaa8942987519) | ||
| * Rohit Goswami: [https://rgoswami.me/posts/gsoc21-fin-reprot/](https://rgoswami.me/posts/gsoc21-fin-reprot/) | ||
|
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| #### LFortran 0.12.0 was released on August 15 | ||
|
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| Changes since the last release. | ||
|
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| * Fixed all issues in the parser that were reported (AST) | ||
| * multiple loop single end do | ||
| * arithmetic if | ||
| * Comments and empty lines are now represented in AST and formatted correctly (AST) | ||
| * The formatter (`lfortran fmt`) now uses the minimal amount of parentheses in expressions | ||
| * Initial fixed-form parser (AST) | ||
| * Initial class support (ASR, LLVM) | ||
| * Allocate / deallocate, allocatable arrays (ASR, LLVM) | ||
| * Associate block (ASR, LLVM) | ||
| * Runtime library refactoring (ASR, LLVM) | ||
| * Split into builtin, pure and impure | ||
| * `iso_fortran_env`, `iso_c_binding` intrinsic modules added | ||
| * Compile time evaluation (ASR, LLVM) | ||
|
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| Commits (`git shortlog -ns v0.11.0..v0.12.0`): | ||
| ``` | ||
| 369 Ondřej Čertík | ||
| 85 Thirumalai Shaktivel | ||
| 79 Gagandeep Singh | ||
| 75 Rohit Goswami | ||
| 20 Andrew Best | ||
| 4 Dominic Poerio | ||
| ``` | ||
|
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||
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| #### Updates in master since the last release: | ||
|
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| * LFortran can now compile binaries on Windows | ||
| * C interoperation works on all platforms (including Windows and MSVC) | ||
| * Runtime library improvements | ||
| * Complex intrinsics fixed on all platforms | ||
| * All trigonometric functions now use the Fortran `impure` interface in the runtime library | ||
| * More intrinsics implemented | ||
| * Initial implementation of classes and methods | ||
| * LFortran now works with `fpm` and compiles the hello world project and a few other example projects | ||
| * Parser improvements: team and sync statements | ||
| * Improved handling of character types as function arguments and return values | ||
|
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||
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| We are looking for new contributors, so if you are interested, please [get in | ||
| touch with us](https://lfortran.org/)! We would be happy to do a video call | ||
| with you to get you started. | ||
|
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||
|
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| ## Events | ||
|
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||
| * We had our 15th Fortran Monthly call on August 17. | ||
| You can watch the recording below: | ||
| <iframe width="560" height="315" src="https://www.youtube.com/embed/496oZFYcA00" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> | ||
|
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| * FortranCon 2021 will be held virtually from September 23-24, 2021. | ||
| Registration is free of charge and is due by September 15. | ||
| The second call for abstracts is due September 1. | ||
| For more information, visit the [FortranCon website](https://tcevents.chem.uzh.ch/event/14/). | ||
|
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||
| * Our Google Summer of Code program for 2021 is coming to a close. | ||
| Read about our students and their progress so far on Discourse: <https://fortran-lang.discourse.group/c/gsoc-2021/11> | ||
|
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||
| As usual, subscribe to the [mailing list](https://groups.io/g/fortran-lang) and/or | ||
| join the [Discourse](https://fortran-lang.discourse.group) to stay tuned with the future meetings. | ||
|
|
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| ## Contributors | ||
|
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| We thank everybody who contributed to fortran-lang in the past month by | ||
| commenting in any of these repositories: | ||
|
|
||
| * [fortran-lang/stdlib](https://github.com/fortran-lang/stdlib) | ||
| * [fortran-lang/stdlib-cmake-example](https://github.com/fortran-lang/stdlib-cmake-example) | ||
| * [fortran-lang/fpm](https://github.com/fortran-lang/fpm) | ||
| * [fortran-lang/fpm-registry](https://github.com/fortran-lang/fpm-registry) | ||
| * [fortran-lang/setup-fpm](https://github.com/fortran-lang/setup-fpm) | ||
| * [fortran-lang/fpm-haskell](https://github.com/fortran-lang/fpm-haskell) | ||
| * [fortran-lang/fortran-lang.org](https://github.com/fortran-lang/fortran-lang.org) | ||
| * [fortran-lang/benchmarks](https://github.com/fortran-lang/benchmarks) | ||
| * [fortran-lang/fortran-forum-article-template](https://github.com/fortran-lang/fortran-forum-article-template) | ||
| * [fortran-lang/fftpack](https://github.com/fortran-lang/fftpack) | ||
| * [j3-fortran/fortran\_proposals](https://github.com/j3-fortran/fortran_proposals) | ||
|
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| <div id="gh-contributors" data-startdate="August 01 2021" data-enddate="August 31 2021" height="500px"></div> |
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