llvm-capstone/openmp/docs
Johannes Doerfert d3921e4670
[OpenMP] Basic BumpAllocator for (AMD)GPUs (#69806)
The patch contains a basic BumpAllocator for (AMD)GPUs to allow us to
run more tests. The allocator implements `malloc`, both internally and
externally, while we continue to default to the NVIDIA `malloc` when we
target NVIDIA GPUs. Once we have smarter or customizable allocators we
should consider this choice, for now, this allocator is better than
none. It traps if it is out of memory, making it easy to debug. Heap
size is configured via `LIBOMPTARGET_HEAP_SIZE` and defaults to 512MB.
It allows to track allocation statistics via
`LIBOMPTARGET_DEVICE_RTL_DEBUG=8` (together with
`-fopenmp-target-debug=8`). Two tests were added, and one was enabled.

This is the next step towards fixing
 https://github.com/llvm/llvm-project/issues/66708
2023-10-21 14:49:30 -07:00
..
_static
_templates
_themes
design [OpenMP] Basic BumpAllocator for (AMD)GPUs (#69806) 2023-10-21 14:49:30 -07:00
openacc [OpenACC][OpenMP] Document atomic-in-teams extension 2022-05-27 18:53:19 -04:00
optimizations
remarks [OpenMP][Docs] Make copy pasting remarks easier 2022-03-08 16:54:12 -05:00
CMakeLists.txt
CommandLineArgumentReference.rst [OpenMP] Change OpenMP default version in documentation and help text for -fopenmp-version 2023-08-28 19:05:55 -07:00
conf.py [NFC][Py Reformat] Reformat python files in the rest of the dirs 2023-05-25 11:17:05 +02:00
doxygen-mainpage.dox
doxygen.cfg.in [docs] Hide collaboration and include graphs in doxygen docs 2023-05-04 12:26:51 +02:00
index.rst [OpenMP][Docs] Added offloading command line reference to OpenMP FAQ 2023-07-29 17:40:28 -07:00
README.txt [OpenMP][Docs] Updated the OpenMP documentation about building the OpenMP documentation with Sphinx 2023-07-28 18:04:21 -07:00
ReleaseNotes.rst Clear release notes for 18.x 2023-07-25 13:58:49 +02:00
SupportAndFAQ.rst [OpenMP][Docs] Remove old entry saying static libraries are unsupported 2023-08-30 06:48:57 -05:00

OpenMP LLVM Documentation
==================

OpenMP LLVM's documentation is written in reStructuredText, a lightweight
plaintext markup language (file extension `.rst`). While the
reStructuredText documentation should be quite readable in source form, it
is mostly meant to be processed by the Sphinx documentation generation
system to create HTML pages which are hosted on <https://llvm.org/docs/> and
updated after every commit. Manpage output is also supported, see below.

If you instead would like to generate and view the HTML locally, install
Sphinx <http://sphinx-doc.org/> and then do:

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_HTML=true -DCMAKE_MODULE_PATH=/path/to/llvm/cmake/modules <src-dir>
    make docs-openmp-html
    $BROWSER <build-dir>/docs/html/index.html

The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `<build-dir>/projects/openmp/docs//html/Foo.html` <->
`https://openmp.llvm.org/docs/Foo.html`.

If you are interested in writing new documentation, you will want to read
`llvm/docs/SphinxQuickstartTemplate.rst` which will get you writing
documentation very fast and includes examples of the most important
reStructuredText markup syntax.

Manpage Output
===============

Building the manpages is similar to building the HTML documentation. The
primary difference is to use the `man` makefile target, instead of the
default (which is `html`). Sphinx then produces the man pages in the
directory `<build-dir>/docs/man/`.

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_MAN=true <src-dir>
    make
    man -l >build-dir>/docs/man/FileCheck.1

The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `<build-dir>/projects/openmp/docs//man/Foo.1`.
These .rst files are also included during HTML generation so they are also
viewable online (as noted above) at e.g.
`https://openmp.llvm.org/docs/CommandGuide/Foo.html`.