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This patch adds support for Arm's new vector extension SVE (Scalable Vector Extension). In contrast to other vector extensions that are supported by Eigen, SVE types are inherently *sizeless*. For the use in Eigen we fix their size at compile-time (note that this is not necessary in general, SVE is *length agnostic*). During compilation the flag `-msve-vector-bits=N` has to be set where `N` is a power of two in the range of `128`to `2048`, indicating the length of an SVE vector. Since SVE is rather young, we decided to disable it by default even if it would be available. A user has to enable it explicitly by defining `EIGEN_ARM64_USE_SVE`. This patch introduces the packet types `PacketXf` and `PacketXi` for packets of `float` and `int32_t` respectively. The size of these packets depends on the SVE vector length. E.g. if `-msve-vector-bits=512` is set, `PacketXf` will contain `512/32 = 16` elements. This MR is joint work with Miguel Tairum <miguel.tairum@arm.com>. |
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| bench | ||
| blas | ||
| ci | ||
| cmake | ||
| debug | ||
| demos | ||
| doc | ||
| Eigen | ||
| failtest | ||
| lapack | ||
| scripts | ||
| test | ||
| unsupported | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .hgeol | ||
| CMakeLists.txt | ||
| COPYING.APACHE | ||
| COPYING.BSD | ||
| COPYING.GPL | ||
| COPYING.LGPL | ||
| COPYING.MINPACK | ||
| COPYING.MPL2 | ||
| COPYING.README | ||
| CTestConfig.cmake | ||
| CTestCustom.cmake.in | ||
| eigen3.pc.in | ||
| INSTALL | ||
| README.md | ||
| signature_of_eigen3_matrix_library | ||
Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
For more information go to http://eigen.tuxfamily.org/.
For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.