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* Enable reuse by default in Spack
* Update documentation to match new default
* Configure pipelines not to reuse software
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Reworking lua to allow easier substitution of the base lua implementation.
Also adding in a maintained version of luajit and re-factoring the entire stack
to use a custom build-system to centralize functionality like environment
variable management and luarocks installation.
The `lua-lang` virtual is now versioned so that a package that requires
Lua 5.1 semantics can get any lua, but one that requires 5.2 will only
get upstream lua.
The luaposix package requires lua-bit32, but only when built with a
lua conforming to version 5.1. This adds the package, and the
dependencies, but exposed a problem with luarocks dependency
detection. Since we're installing each package in its own "tree" and
there's no environment variable to list extra trees, spack now
generates a luarocks config file that lists all the trees of all the
dependencies, and references it by setting `LUAROCKS_CONFIG`
in the build environment of every LuaPackage. This allows luarocks
to find the spack installed dependencies correctly rather than
trying (and failing) to download them.
Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
Co-authored-by: Tom Scogland <tscogland@llnl.gov>
Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>
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* ASP-based solver: allow configuring target selection
This commit adds a new "concretizer:targets" configuration
section, and two options under it.
- "concretizer:targets:granularity" allows switching from
considering only generic targets to consider all possible
microarchitectures.
- "concretizer:targets:host_compatible" instead controls
whether we can concretize for microarchitectures that
are incompatible with the current host.
* Add documentation
* Add unit-tests
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* Add support for Python 3.10
* Update unit-tests to use 3.10
* Update Getting started section of the docs
* Update bootstrap action
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* Ignore top-level module config; add auto-update
In Spack 0.17 we got module sets (modules:[name]:[prop]), and for
backwards compat modules:[prop] was short for modules:default:[prop].
But this makes it awkward to define default config for the "default"
module set.
Since 0.17 is branched off, we can now deprecate top-level module config
(that is, just ignore it with a warning).
This PR does that, and it implements `spack config update modules` to
make upgrading easy (we should have added that to 0.17 already...)
It also removes references to `dotkit` stuff which was already
deprecated in 0.13 and could have been removed in 0.14.
Prefix inspections are the only exception, since the top-level prefix inspections
used for `spack load` and `spack env activate`.
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* Incorporate new search location
* Add external user option
* proper doc string
* Explicit commands in getting started
* raise during chgrp on Win
recover installer changes
Notate admin privleges
Windows phase install hooks
Find external python and install ninja (#23496)
Allow external find python to find windows python and spack install ninja
Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
Co-authored-by: Betsy McPhail <betsy.mcphail@kitware.com>
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MSVC's internal CMake and Ninja now detected by spack external find and added to packages.yaml
Saving progress on packaging zlib for Windows
Fixing the shared CMake flag
* Loading Intel's ifx Fortran compiler into MSVC; if there are multiple
versions of MSVC installed and detected, ifx will only be placed into
the first block written in compilers.yaml. The version number of ifx can
be detected using MSVC's version flag (instead of /QV) by using
ignore_version_errors. This commit also provides support for detection
of Intel compilers in their own compiler block by adding ifx.exe to the
fc/f77_name blocks inside intel.py
* Giving CMake a Fortran compiler argument
* Adding patch file for removing duplicated mangling header for versions 3.9.1 and older; static and shared now successfully building on Windows
* Have netlib-lapack depend on ninja@1.10
Co-authored-by: John R. Cary <cary@txcorp.com>
Co-authored-by: Jared Popelar <jpopelar@txcorp.com>
Making a default config.yaml for Windows
Small path length for build_stage
Provide more prerequisite details, mention default config.yaml
Killing an unnecessary setvars call
Replacing some lost changes, proofreading, updating windows-supported package list
Co-authored-by: John Parent <john.parent@kitware.com>
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The concretizer is going to grow to have many more configuration,
and we really need some structured config for that.
* We have the `config:concretizer` option that chooses the solver,
but extending that is awkward (we'd need to replace a string with
a `dict`) and the solver choice will be deprecated eventually.
* We have the `concretization` option in environments, but it's
not a top-level config section -- it's just for environments,
and it also only admits a string right now.
To avoid overlapping with either of these and to allow the most
extensibility in the future, this adds a new `concretizer` config
section that can be used in and outside of environments. There
is only one option right now: `reuse`. This can expand to include
other options later.
Likely, we will soon deprecate `config:concretizer` and warn when
the user doesn't use `clingo`, and we will eventually (sometime later)
move the `together` / `separately` options from `concretization` into
the top-level `concretizer` section.
This commit just adds the new section and schema. Fully wiring it
up is TBD.
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* Switch lmod module all autoload default from none to direct
* Fix the docs
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Add an abstraction around libllvm to allow libllvm
providers to be specified for all packages.
This is targeting allowing mesa to build against
llvm-amdgpu or intel-llvm or llvm or any other
custom llvm variant that arises for specific GPU
toolchains
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There were some loose ends left in ##26735 that cause errors when
using `SPACK_DISABLE_LOCAL_CONFIG`.
- [x] Fix hard-coded `~/.spack` references in `install_test.py` and `monitor.py`
Also, if `SPACK_DISABLE_LOCAL_CONFIG` is used, there is the issue that
`$user_config_path`, when used in configuration files, makes no sense,
because there is no user config scope.
Since we already have `$user_cache_path` in configuration files, and since there
really shouldn't be *any* data stored in a configuration scope (which is what
you'd configure in `config.yaml`/`bootstrap.yaml`/etc., this just removes
`$user_config_path`.
There will *always* be a `$user_cache_path`, as Spack needs to write files, but
we shouldn't rely on the existence of a particular configuration scope in the
Spack code, as scopes are configurable, both in number and location.
- [x] Remove `$user_config_path` substitution.
- [x] Fix reference to `$user_config_path` in `etc/spack/deaults/bootstrap.yaml`
to refer to `$user_cache_path`, which is where it was intended to be.
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Spack's `system` and `user` scopes provide ways for administrators and
users to set global defaults for all Spack instances, but for use cases
where one wants a clean Spack installation, these scopes can be undesirable.
For example, users may want to opt out of global system configuration, or
they may want to ignore their own home directory settings when running in
a continuous integration environment.
Spack also, by default, keeps various caches and user data in `~/.spack`,
but users may want to override these locations.
Spack provides three environment variables that allow you to override or
opt out of configuration locations:
* `SPACK_USER_CONFIG_PATH`: Override the path to use for the
`user` (`~/.spack`) scope.
* `SPACK_SYSTEM_CONFIG_PATH`: Override the path to use for the
`system` (`/etc/spack`) scope.
* `SPACK_DISABLE_LOCAL_CONFIG`: set this environment variable to completely
disable *both* the system and user configuration directories. Spack will
only consider its own defaults and `site` configuration locations.
And one that allows you to move the default cache location:
* `SPACK_USER_CACHE_PATH`: Override the default path to use for user data
(misc_cache, tests, reports, etc.)
With these settings, if you want to isolate Spack in a CI environment, you can do this:
export SPACK_DISABLE_LOCAL_CONFIG=true
export SPACK_USER_CACHE_PATH=/tmp/spack
This is a stop-gap approach until we have figured out how to deal with
the system and user config scopes more generally, as there are plans to
potentially / eventually get rid of them.
**User config**
Spack is a bit of a pain when you have:
- a shared $HOME folder across different systems.
- multiple Spack versions on the same system.
**System config**
- On shared systems with a versioned programming environment / toolkit,
system administrators want to provide config for each version (e.g.
21.09, 21.10) of the programming environment, and the user Spack
instance should be able to pick this up without a steep learning
curve.
- On shared systems the user should be able to opt out of the
hard-coded config scope in /etc/spack, since it may be incompatible
with their particular instance. Currently Spack can only opt out of all
config scopes through overrides with `"config:":`, `"packages:":`, but that
also drops the defaults config, which would have to be repeated, which
is undesirable, especially the lengthy packages.yaml.
An example use case is: having config in this folder:
```
/path/to/programming/environment/{version}/{compilers,packages}.yaml
```
and have `module load spack-system-config` set the variable
```
SPACK_SYSTEM_CONFIG_PATH=/path/to/programming/environment/{version}
```
where the user no longer has to worry about what `{version}` they are
on.
**Continuous integration**
Finally, there is the use case of continuous integration, which may
clone an arbitrary Spack version, which optimally should not pick up
system or user config from the previous run (like may happen in
classical bare metal non-containerized filesystem side effect ridden
jenkins pipelines). In fact this is very similar to how spack itself
tries to avoid picking up system dependencies during builds...
**But environments solve this?**
- You could do `include`s in environment files to get similar behavior
to the spack_system_config_path example, but environments require you
to:
1) require paths to individual config files, not directories.
2) fail if the listed config file does not exist
- They allow you to override config scopes, but this is generally too
rigurous, as it requires you to repeat the default config, in
particular packages.yaml, and just defies the point of layered config.
Co-authored-by: Tom Scogland <tscogland@llnl.gov>
Co-authored-by: Tim Fuller <tjfulle@sandia.gov>
Co-authored-by: Steve Leak <sleak@lbl.gov>
Co-authored-by: Todd Gamblin <tgamblin@llnl.gov>
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Installing packages with a lot of dependencies does not have an easy way
of judging the current progress (apart from running `spack spec -I pkg`
in another terminal). This change allows Spack to update the terminal's
title with status information, including its current progress as well as
information about the current and total number of packages.
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Modifications:
- [x] Change `defaults/config.yaml`
- [x] Add a fix for bootstrapping patchelf from sources if `compilers.yaml` is empty
- [x] Make `SPACK_TEST_SOLVER=clingo` the default for unit-tests
- [x] Fix package failures in the e4s pipeline
Caveats:
1. CentOS 6 still uses the original concretizer as it can't connect to the buildcache due to issues with `ssl` (bootstrapping from sources requires a C++14 capable compiler)
1. I had to update the image tag for GitlabCI in e699f14.
1. libtool v2.4.2 has been deprecated and other packages received some update
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* Bootstrap clingo from binaries
* Move information on clingo binaries to a JSON file
* Add support to bootstrap on Cray
Bootstrapping on Cray requires, at the moment, to
swap the platform when looking for binaries - due
to #22800.
* Add SHA256 verification for bootstrapped software
Use sha256 verification for binaries necessary to bootstrap
the concretizer and gpg for signature verification
* patchelf: use Spec._old_concretize() to bootstrap
As noted in #24450 we may happen to need the
concretizer when bootstrapping clingo. In that case
only the old concretizer is available.
* Add a schema for bootstrapping methods
Two fields have been added to bootstrap.yaml:
"sources" which lists the methods available for
bootstrapping software
"trusted" which records if a source is trusted or not
A subcommand has been added to "spack bootstrap" to list
the sources currently available.
* Methods used for bootstrapping are configurable from bootstrap:sources
The function that tries to ensure a given Python module
is importable now tries bootstrapping methods in the same
order as they are defined in `bootstrap.yaml`
* Permit to trust/untrust bootstrapping methods
* Add binary tests for MacOS, Ubuntu
* Add documentation
* Add a note on bash
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- Change config from the undocumented `use_curl: true/false` to `url_fetch_method: urllib/curl`.
- Documentation of `url_fetch_method` in `defaults/config.yaml`
- Default fetch option explicitly set to `urllib` for users who may not have curl on their system
To upgrade from `use_curl` to `url_fetch_method`, run `spack config update config`
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* pbs: new virtual package
Some of our clusters have an older installation of
libtorque and tm.h that are *not* from OpenPBS. Using the current
openpbs dependency for openmpi causes concretization errors due to
restrictions on older python and hwloc requirements that don't apply,
even with an external non-buildable installation.
The new 'torque' bundle package allows users to point to that external
installation without problems.
Detailed description of torque by Sergey Kosukhin <skosukhin@gmail.com>
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* Permit to enable/disable bootstrapping and customize store location
This PR adds configuration handles to allow enabling
and disabling bootstrapping, and to customize the store
location.
* Move bootstrap related configuration into its own YAML file
* Add a bootstrap command to manage configuration
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* Switch hdf5 package from autotools to cmake.
* Add variant for building with zlib, default to ON.
* Update for format requirements.
* Format change.
* Fix breakage from last merge from develop.
Switch szip to use libaec (unrestricted encryption).
Remove 'static' variant: static libs will only be installed when
~shared.
* Improve args based on suggestions from pull request.
* Update code URL to github.com
Add/modify 4 depends_on lines to fix running "spack graph --deptype=link hdf5".
* Remove trailing whitespace.
* Remove dependencies added solely to make "spack greph --type=link" work.
* Add new version HDF5 1.8.22.
* Remove unnecessary java_check.
* Fix whitespace for style checks.
* Reverted zlib version dependency to 1.1.2:.
zlib variant removed.
api version default renamed "default".
* Remove blank line.
* Whitespace corrections.
* iRemoved unnecessary 'debug' variant.
* Fix typo in version number in conflict for '+szip'.
* Set default for tools variant to True.
Remove patch functions dependent on 'libtool' file that cmake doesn't
produce.
* Remove line to set ONLY_SHARED_LIBS to true.
Add post_install code to install only one version of tools with shared
linkage and original tool names.
* Remove trailing white space and import of glob package not used.
* Leave BUILD_TESTING set to default which is ON.
* Remove post_install code to install only one version of tools because
some dependent packages running tests in e4s testing are using
h5diff-shared. Keep both tools versions for now.
* No longer need to import os.
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This adds a package for `irep`, a tool for reading `lua` input decks from
Fortran, C, and C++.
`irep` can be built with either `lua` or `luajit`. To address this, we also add
a virtual package for lua called `lua-lang`. `luajit` isn't, by default, a drop-in
replacement for `lua`, but we add a `+lualinks` variant to it that adds symlinks
that make it behave like `lua@5.1`. With this variant enabled, it provides the
`lua-lang` virtual. `lua` always provides `lua-lang`.
- [x] add `irep` package
- [x] add `+lualinks` variant to `lua-luajit`
- [x] create `lua-lang` virtual, provided by `lua` and `luajit+lualinks`
Co-authored-by: Kayla Richarda Butler <butler59@quartz1148.llnl.gov>
Co-authored-by: Todd Gamblin <tgamblin@llnl.gov>
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Currently, module configurations are inconsistent because modulefiles are generated with the configs for the active environment, but are shared among all environments (and spack outside any environment).
This PR fixes that by allowing Spack environments (or other spack config scopes) to define additional sets of modules to generate. Each set of modules can enable either lmod or tcl modules, and contains all of the previously available module configuration. The user defines the name of each module set -- the set configured in Spack by default is named "default", and is the one returned by module manipulation commands in the absence of user intervention.
As part of this change, the module roots configuration moved from the config section to inside each module configuration.
Additionally, it adds a feature that the modulefiles for an environment can be configured to be relative to an environment view rather than the underlying prefix. This will not be enabled by default, as it should only be enabled within an environment and for non-default views constructed with separate projections per-spec.
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Spack's source mirror was previously in a plain old S3 bucket. That will still
work, but we can do better. This switches to AWS's CloudFront CDN for hosting
the mirror.
CloudFront is 16x faster (or more) than the old bucket.
- [x] change mirror to https://mirror.spack.io
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This reverts commit cefbe48c89209dc3df654795644973b1885cdea4.
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Currently, module configurations are inconsistent because modulefiles are generated with the configs for the active environment, but are shared among all environments (and spack outside any environment).
This PR fixes that by allowing Spack environments (or other spack config scopes) to define additional sets of modules to generate. Each set of modules can enable either lmod or tcl modules, and contains all of the previously available module configuration. The user defines the name of each module set -- the set configured in Spack by default is named "default", and is the one returned by module manipulation commands in the absence of user intervention.
As part of this change, the module roots configuration moved from the `config` section to inside each module configuration.
Additionally, it adds a feature that the modulefiles for an environment can be configured to be relative to an environment view rather than the underlying prefix. This will not be enabled by default, as it should only be enabled within an environment and for non-default views constructed with separate projections per-spec.
TODO:
- [x] code changes to support multiple module sets
- [x] code changes to support modules relative to a view
- [x] Tests for multiple module configurations
- [x] Tests for modules relative to a view
- [x] Backwards compatibility for module roots from config section
- [x] Backwards compatibility for default module set without the name specified
- [x] Tests for backwards compatibility
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* Make -j flag less exceptional
The -j flag in spack behaves differently from make, ctest, ninja, etc,
because it caps the number of jobs to an arbitrary number 16.
Spack will behave like other tools if `spack install` uses a reasonable
default, and `spack install -j <num>` *overrides* that default.
This will be particularly useful for Spack usage outside of a traditional
HPC context and for HPC centers that encourage users to compile on
login nodes with many cores instead of on compute nodes, which has
become increasingly common as individual nodes have more cores.
This maintains the existing default value of min(num_cpus, 16). However,
as it is right now, Spack does a poor job at determining the number of
cpus on linux, since it doesn't take cgroups into account. This is
particularly problematic when using distributed builds with slurm. This PR
also introduces `spack.util.cpus.cpus_available()` to consolidate
knowledge on determining the number of available cores, and improves
core detection for linux. This should also improve core detection for Docker/
Kubernetes, which also use cgroups.
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Drops:
* C_INCLUDE_PATH
* CPLUS_INCLUDE_PATH
* LIBRARY_PATH
* INCLUDE
We already decided to use C_INCLUDE_PATH, CPLUS_INCLUDE_PATH, INCLUDE over CPATH here:
https://github.com/spack/spack/pull/14749
However, none of these flags apply to Fortran on Linux. So for consistency it seems better to make the user use -I and -L flags by hand or through pkgconfig.
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* Procedure to deprecate old versions of software
* Add documentation
* Fix bug in logic
* Update tab completion
* Deprecate legacy packages
* Deprecate old mxnet as well
* More explicit docs
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libuuid is currently contained in util-linux, libuuid and uuid. This
change introduces a new virtual provider `uuid` and renames the existing
`uuid` package to `ossp-uuid`.
util-linux's libuuid is provided in the form of a separate package
util-linux-uuid to make sure that packages depending on uuid and
util-linux can use a separate uuid implementation, which the concretizer
does not allow if libuuid is contained in util-linux.
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Users can add test() methods to their packages to run smoke tests on
installations with the new `spack test` command (the old `spack test` is
now `spack unit-test`). spack test is environment-aware, so you can
`spack install` an environment and then run `spack test run` to run smoke
tests on all of its packages. Historical test logs can be perused with
`spack test results`. Generic smoke tests for MPI implementations, C,
C++, and Fortran compilers as well as specific smoke tests for 18
packages.
Inside the test method, individual tests can be run separately (and
continue to run best-effort after a test failure) using the `run_test`
method. The `run_test` method encapsulates finding test executables,
running and checking return codes, checking output, and error handling.
This handles the following trickier aspects of testing with direct
support in Spack's package API:
- [x] Caching source or intermediate build files at build time for
use at test time.
- [x] Test dependencies,
- [x] packages that require a compiler for testing (such as library only
packages).
See the packaging guide for more details on using Spack testing support.
Included is support for package.py files for virtual packages. This does
not change the Spack interface, but is a major change in internals.
Co-authored-by: Tamara Dahlgren <dahlgren1@llnl.gov>
Co-authored-by: wspear <wjspear@gmail.com>
Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
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- [x] spec.py can call out to the new concretizer
- [x] config.yaml now has an option to choose a concretizer (original, clingo)
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Since #11598 sbang has been installed within the install_tree. This doesn’t play
nicely with install_tree padding, since sbang can’t do its job if it is installed in a
long path (this is the whole point of sbang).
This PR changes the padding specification. Instead of $padding inside paths,
we now have a separate `padding:` field in the `install_tree` configuration.
Previously, the `install_tree` looked like this:
```
/path/to/opt/spack_padding_padding_padding_padding_padding/
bin/
sbang
.spack-db/
...
linux-rhel7-x86_64/
...
```
```
This PR updates things to look like this:
/path/to/opt/
bin/
sbang
spack_padding_padding_padding_padding_padding/
.spack-db/
...
linux-rhel7-x86_64/
...
So padding is added at the start of all install prefixes *within* the unpadded
root. The database and all installations still go under the padded root.
This ensures that `sbang` is in the shorted possible path while also allowing
us to make long paths for relocatable binaries.
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* [NEW] Added amdfftw, amdlibflame and amdscalapack recipes
Updated base fftw, libflame and netlib-scalapack recipes
to accommodate the above listed AMD Optimizing CPU Libraries
which are a set of numerical routines optimized for AMD platforms.
Updated amdblis spack recipe
amdblis:
1. updated with amdblis 2.2 release
amdfftw:
1. "--enable-single" now work as synonym for "--enable-float"
amdlibflame:
1. Added enable_or_disable_threads() to set value for "--enable-multithreading" flag
Libflame:
1. Added enable_or_disable_threads() to set value for "--enable-multithreading" flag
2. Corrected invocation of "enable_or_disable('threads')"
Change-Id: I9da0a2c2c4e2075b7fa2776e7cfe6548a2e0b32f
* Added amd-toolchain-support as maintainers
Added team github account amd-toolchain-support
as maintainers for all the recipes owned by
AMD Optimizing CPU Libraries (AOCL) team
Change-Id: I9a7969bd48fc42cfbb88dd7bd93e0802c6138582
* Incorporated review comments
Updated packages.yaml with aocl components
Handled Flake8 test failures
Change-Id: I0a03f02d8c9f326b2434ec907958c3de3a8e18eb
* Readded accidental removal of stream recipe
amdfftw:
1. Updated the aocc clang selection as per spack standards
fftw:
1. Currently apple-clang section is redundant,
already it is handled in the conflict checks.
Change-Id: Idef4a3f61717eb81f321e0cd16e7ba9619eac846
* Fix for style and docs/validate (pull_request) test
unnumbered format placeholders from {} to {0}
Change-Id: If67a3374177ec067573e5504462d257712fafc05
* changed compiler references to Spack's compiler wrapper:spack_cc, spack_cxx, spack_fc
Change-Id: I7ae29c978fff16e37773913f14c84df232499763
* Removed 'single' variant from amdfftw recipe
Instead of conflict for apple-clang + openmp, handled this senario
via below available feature:
depends_on('llvm-openmp', when='%apple-clang +openmp')
Change-Id: I701b23d83e822a500ca3aaf2b60cc9ace09e13dc
* Added relevant info for users who prefers to use single precision
Change-Id: I3506e21da428ddef5fb7895b5aaed32c2a061ef6
* Minor changes on fftw, amdfftw and libflame
amdfftw:
1. Removed escape symbol to the single quotes
2. Rewording the conflict line from Recommended
to Required
fftw:
1. Reorded to following recommended sections:
versions, variants, dependencies, providers,
patches
libflame:
1. Added provides entry for 5.1.0 version
Change-Id: I21ebff99b6dfde031763154693ecb3f1fa47b476
* Removed single quote from amdfftw docstring to fix style failures
Change-Id: Ife939a5a2f5ccbc8879b730c7bebfe2fcfef9332
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(#19528)
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* Adding AOCC compiler to SPACK community
The AOCC compiler system offers a high level of advanced optimizations, multi-threading and processor support that includes global optimization, vectorization, inter-procedural analyses, loop transformations, and code generation. AMD also provides highly optimized libraries, which extract the optimal performance from each x86 processor core when utilized. The AOCC Compiler Suite simplifies and accelerates development and tuning for x86 applications.
* Added unit tests for detection and flags for AOCC
* Addressed reviewers comments w.r.t version checks and url,checksum related line lengths
Co-authored-by: Test User <spack@example.com>
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py-pillow-simd is not portable to other architectures.
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* Add byacc dependency to swig when building an autoconf version
* Add yacc provider
Removed extra sycl provider default
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* refactor install_tree to use projections format
* Add update method for config.yaml
* add test for config update config
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* Pillow-SIMD: use as default PIL provider
* Fix concretization of pil
* Fix build of older versions of pillow
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The YAML config for paths and modules of external packages has
changed: the new format allows a single spec to load multiple
modules. Spack will automatically convert from the old format
when reading the configs (the updates do not add new essential
properties, so this change in Spack is backwards-compatible).
With this update, Spack cannot modify existing configs/environments
without updating them (e.g. “spack config add” will fail if the
configuration is in a format that predates this PR). The user is
prompted to do this explicitly and commands are provided. All
config scopes can be updated at once. Each environment must be
updated one at a time.
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This reverts commit 573489db710c6fd315170a45d6c609db2e30e5e4.
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* add new package: "libglvnd-frontend"
* add +glvnd variant to opengl package
* add +glvnd variant to mesa package
* add +egl variant to paraview package
* add libglvnd-frontend entries to default packages config
* fix style
* add default providers for glvnd virtuals
add default providers for glvnd-gl, glvnd-glx, and glvnd-egl
* WIP: rough start to external OpenGL documentation
* rename libglvnd-frontend package and backend virtual dependencies
* update documentation
* fix ligvnd-be-* typos
* fix libglvnd-fe package class name
* fix doc parse error
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