hlaSetKernelTarget: Set the CPU target

In zhengxwen/HIBAG: HLA Genotype Imputation with Attribute Bagging

Set the CPU target

Description

Set the CPU target that the HIBAG algorithm is built on.

Usage

hlaSetKernelTarget(cpu=c("max", "auto.avx2", "base",
    "sse2", "sse4", "avx", "avx2", "avx512f", "avx512bw", "avx512vpopcnt"))

Arguments

cpu	Specify the Intel/AMD CPU flag; "max" by default

Details

If cpu="max", the kernel target will be automatically determined according to the CPU capabilities to maximize the algorithm efficiency. When cpu="auto.avx2", "avx2" is used instead of "avx512f", "avx512bw", "avx512vpopcnt" even if the CPU supports the AVX512F, AVX512BW or AVX512VPOPCNT intrinsics, since the CPU may reduce the frequency of the cores dynamically to keep power usage of AVX512 within bounds; if AVX2 is not applicable, other target will be automatically determined.

The HIBAG algorithm is optimized using different SIMD instruction sets to leverage the efficiency of the target Intel/AMD platform. The higher version of the C++ compiler is needed to enable the compilation of AVX2 and AVX512F intrinsics, e.g., GCC >= v6.0. If the compiler does not support the CPU target, the implementation on that target will be disabled.

Value

Return a character vector for describing the CPU capabilities, the compiler information and the supported implementation.

Author(s)

Xiuwen Zheng

See Also

hlaAttrBagging, hlaParallelAttrBagging, predict.hlaAttrBagClass, hlaPredict

Examples

hlaSetKernelTarget("auto")

zhengxwen/HIBAG documentation built on Nov. 19, 2024, 1:01 p.m.