| comment "volk needs a toolchain w/ C++, NPTL, wchar, dynamic library" |
| depends on BR2_USE_MMU |
| depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_7 || \ |
| !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS |
| |
| config BR2_PACKAGE_VOLK |
| bool "volk" |
| depends on BR2_INSTALL_LIBSTDCPP |
| depends on !BR2_STATIC_LIBS |
| depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # C++17 |
| depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL |
| depends on BR2_USE_MMU # use fork() |
| help |
| VOLK is the Vector-Optimized Library of Kernels. It is a |
| library that contains kernels of hand-written SIMD code |
| for different mathematical operations. Since each SIMD |
| architecture can be very different and no compiler has yet |
| come along to handle vectorization properly or highly |
| efficiently, VOLK approaches the problem differently. |
| |
| For each architecture or platform that a developer wishes |
| to vectorize for, a new proto-kernel is added to VOLK. At |
| runtime, VOLK will select the correct proto-kernel. In this |
| way, the users of VOLK call a kernel for performing the |
| operation that is platform/architecture agnostic. This |
| allows us to write portable SIMD code. |
| |
| https://www.libvolk.org/ |
