2022-02-09 00:24:08 +08:00
|
|
|
comment "volk needs a toolchain w/ C++, NPTL, wchar, dynamic library"
|
|
|
|
|
depends on BR2_USE_MMU
|
2022-09-27 16:05:49 +08:00
|
|
|
depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_7 \
|
2022-02-09 00:24:08 +08:00
|
|
|
!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
|
|
|
|
|
|
|
|
|
|
config BR2_PACKAGE_VOLK
|
|
|
|
|
bool "volk"
|
|
|
|
|
depends on BR2_INSTALL_LIBSTDCPP
|
|
|
|
|
depends on !BR2_STATIC_LIBS
|
2022-09-27 16:05:49 +08:00
|
|
|
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # C++17
|
2022-02-09 00:24:08 +08:00
|
|
|
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/
|
