Skip to content

GridTools version 1.1.0
Compare
Choose a tag to compare
@havogt havogt released this 07 Oct 12:02
· 314 commits to master since this release
v1.1.0
12ee091
This commit was created on GitHub.com and signed with GitHub’s verified signature. The key has expired.
GPG key ID: 4AEE18F83AFDEB23
Expired
Verified
Learn about vigilant mode.

GridTools

In GridTools v1.1.0 we set the default C++ standard to C++14 and drop compatibility for C++11. This requires at least CUDA 9.0.

Changes since v1.0.0

Full introduction of the SID concept

The backend is completely restructured based on the SID (stencil iteratable data) concept. There should be no user facing changes as long as user code was only using documented public API (*). The changes separate backend implementation from the core library to allow non intrusive extension of the library with new backends. Additionally maintainability of the gridtools infrastructure is significantly improved.
Performance should be improved in general, but might be worse for specific computations. A common pattern for performance improvement/degradation is not observed.

(*) There is one change which might trigger different behavior (though the old behavior was not documented): temporary fields are now implicitly 3 dimensional. Prior to this version the user could have abused a 2D temporary field for accumulating values between k-levels.

New

  • New example illustrating the type-erasure pattern for computations. #1318

Deprecation (support will be removed in GridTools v2.0.0)

  • Using the gridtools::c_bindings is deprecated. Switch to the standalone https://github.com/GridTools/cpp_bindgen.
  • global_accessor is deprecated, use in_accessor (without extents) instead.
  • make_global_parameter with backend as template parameter is deprecated. The backend is not needed anymore.

Fixes / Cleanup

  • Fix performance for CUDA 9.2 / 10.0 #1281 #1327 #1339
  • Use c++14 features. #1307
  • Use multiple threads in storage Initialization. #1300
  • Remove dependency on boost::mpl and boost::fusion
  • Fixes required to compile gridtools with HIP-Clang. Full support for AMD GPUs via HIP-Clang will come in a next release. #1363
  • Fix a bug in communication #1355.
  • The global_parameter doesn't require pre-allocated storage (as it is now passed via constant memory in case of CUDA), therefore global_parameter is a lightweight wrapper around the value type, which can be created without overhead, e.g. when passing it to computation.run().

Infrastructure/Development

  • The bash build script is replaced by a python driven build process, see wiki for how to get the environment. #1273 #1298 #1341
  • Improved jenkins performance plots. #1301 #1338
  • Googletest is now pulled-in with CMake's FetchConent instead of having it as part of the repository. #1310
Assets 2
Loading