Kernels per platform
Here we present a snapshot of currently available VOLK kernels and their implementations in VOLK version 2.4.1. An overview for VOLK version 1.0.0 is also available. Most, if not all kernels in the SSE/AVX/AVX512 columns offer aligned and unaligned versions.
Exact SIMD extension versions
Each column contains the exact SIMD extension that is required for that kernel, e.g. sse or sse4_1.
The columns represent the SIMD register width and archictecture such as x86 128bit SSE or ARM 128bit NEON.
The ORC column indicates if a liborc implementation for this kernel is available.
Only kernels that benefit from newer instruction set versions should receive specialized implementations.
| Kernel name | generic | SSE | AVX | AVX512 | NEON | ORC | Other |
|---|---|---|---|---|---|---|---|
| volk_16i_32fc_dot_prod_32fc | generic | sse | avx2, avx2_fma | - | neon | - | - |
| volk_16i_branch_4_state_8 | generic | ssse3 | - | - | - | - | - |
| volk_16i_convert_8i | generic | sse2 | avx2 | - | neon | - | - |
| volk_16i_max_star_16i | generic | ssse3 | - | - | neon | - | - |
| volk_16i_max_star_horizontal_16i | generic | ssse3 | - | - | neonasm, neon | - | - |
| volk_16i_permute_and_scalar_add | generic | sse2 | - | - | - | - | - |
| volk_16i_s32f_convert_32f | generic | sse4_1, sse | avx, avx2 | - | neon | - | - |
| volk_16i_x4_quad_max_star_16i | generic | sse2 | - | - | neon | - | - |
| volk_16i_x5_add_quad_16i_x4 | generic | sse2 | - | - | neon | - | - |
| volk_16ic_convert_32fc | generic | sse2 | avx, avx2 | - | neon | - | - |
| volk_16ic_deinterleave_16i_x2 | generic | ssse3, sse2 | avx2 | - | - | orc | - |
| volk_16ic_deinterleave_real_16i | generic | sse2, ssse3 | avx2 | - | - | - | - |
| volk_16ic_deinterleave_real_8i | generic | ssse3 | avx2 | - | neon | orc | - |
| volk_16ic_magnitude_16i | generic | sse, sse3 | avx2 | - | neonv7 | orc | - |
| volk_16ic_s32f_deinterleave_32f_x2 | generic | sse | avx2 | - | neon | orc | - |
| volk_16ic_s32f_deinterleave_real_32f | generic | sse, sse4_1 | avx2 | - | - | - | - |
| volk_16ic_s32f_magnitude_32f | generic | sse, sse3 | avx2 | - | - | orc | - |
| volk_16ic_x2_dot_prod_16ic | generic | sse2 | avx2 | - | neon_vma, neon_optvma, neon | - | - |
| volk_16ic_x2_multiply_16ic | generic | sse2 | avx2 | - | neon | - | - |
| volk_16u_byteswap | generic | sse2 | avx2 | - | neon_table, neon | orc | - |
| volk_32f_64f_add_64f | generic | - | avx | - | neon | - | - |
| volk_32f_64f_multiply_64f | generic | - | avx | - | - | - | - |
| volk_32f_8u_polarbutterfly_32f | generic | - | avx2, avx | - | - | - | - |
| volk_32f_accumulator_s32f | generic | sse | avx | - | - | - | - |
| volk_32f_acos_32f | generic | sse4_1 | avx, avx2_fma | - | - | - | - |
| volk_32f_asin_32f | generic | sse4_1 | avx, avx2_fma | - | - | - | - |
| volk_32f_atan_32f | generic | sse4_1 | avx, avx2_fma | - | - | - | - |
| volk_32f_binary_slicer_32i | generic_branchless, generic | sse2 | avx | - | - | - | - |
| volk_32f_binary_slicer_8i | generic_branchless, generic | sse2 | avx2 | - | neon | - | - |
| volk_32f_convert_64f | generic | sse2 | avx | - | - | - | - |
| volk_32f_cos_32f | generic_fast, generic | sse4_1 | avx2, avx2_fma | - | neon | - | - |
| volk_32f_exp_32f | generic | sse2 | - | - | - | - | - |
| volk_32f_expfast_32f | generic | sse4_1 | avx, avx_fma | - | - | - | - |
| volk_32f_index_max_16u | generic | sse, sse4_1 | avx | - | - | - | - |
| volk_32f_index_max_32u | generic | sse4_1, sse | avx | - | neon | - | - |
| volk_32f_invsqrt_32f | generic | sse | avx | - | neon | - | - |
| volk_32f_log2_32f | generic | sse4_1 | avx2, avx2_fma | - | neon | - | - |
| volk_32f_null_32f | generic | - | - | - | - | - | - |
| volk_32f_s32f_32f_fm_detect_32f | generic | sse | avx | - | - | - | - |
| volk_32f_s32f_add_32f | - | sse | avx | - | neon | orc | - |
| volk_32f_s32f_calc_spectral_noise_floor_32f | generic | sse | avx | - | - | - | - |
| volk_32f_s32f_convert_16i | generic | sse2, sse | avx, avx2 | - | - | - | - |
| volk_32f_s32f_convert_32i | generic | sse2, sse | avx | - | - | - | - |
| volk_32f_s32f_convert_8i | generic | sse2, sse | avx2 | - | - | - | - |
| volk_32f_s32f_multiply_32f | generic | sse | avx | - | neon | orc | - |
| volk_32f_s32f_normalize | generic | sse | avx | - | - | orc | - |
| volk_32f_s32f_power_32f | generic | sse, sse4_1 | - | - | - | - | - |
| volk_32f_s32f_s32f_mod_range_32f | generic | sse2, sse | avx | - | - | - | - |
| volk_32f_s32f_stddev_32f | generic | sse, sse4_1 | avx | - | - | - | - |
| volk_32f_sin_32f | generic | sse4_1 | avx2, avx2_fma | - | neon | - | - |
| volk_32f_sqrt_32f | generic | sse | avx | - | neon | orc | - |
| volk_32f_stddev_and_mean_32f_x2 | generic | sse, sse4_1 | avx | - | - | - | - |
| volk_32f_tan_32f | generic | sse4_1 | avx2, avx2_fma | - | neon | - | - |
| volk_32f_tanh_32f | generic | sse | avx, avx_fma | - | - | - | series |
| volk_32f_x2_add_32f | generic | sse | avx | avx512f | neonpipeline, neonasm, neon | orc | - |
| volk_32f_x2_divide_32f | generic | sse | avx | avx512f | neon | orc | - |
| volk_32f_x2_dot_prod_16i | generic | sse | avx, avx2_fma | avx512f | - | - | - |
| volk_32f_x2_dot_prod_32f | generic | sse4_1, sse3, sse | avx, avx2_fma | avx512f | neonasm, neonasm_opts, neonopts, neon | - | - |
| volk_32f_x2_interleave_32fc | generic | sse | avx | - | neon | - | - |
| volk_32f_x2_max_32f | generic | sse | avx | avx512f | neon | orc | - |
| volk_32f_x2_min_32f | generic | sse | avx | avx512f | neon | orc | - |
| volk_32f_x2_multiply_32f | generic | sse | avx | avx512f | neon | orc | - |
| volk_32f_x2_pow_32f | generic | sse4_1 | avx2, avx2_fma | - | - | - | - |
| volk_32f_x2_s32f_interleave_16ic | generic | sse2, sse | avx2 | - | - | - | - |
| volk_32f_x2_subtract_32f | generic | sse | avx | avx512f | neon | orc | - |
| volk_32f_x3_sum_of_poly_32f | generic | sse3 | avx, avx2_fma, avx_fma | - | neon, neonvert | - | - |
| volk_32fc_32f_add_32fc | generic | - | avx | - | neon | - | - |
| volk_32fc_32f_dot_prod_32fc | generic | sse | avx, avx2_fma | - | neon_unroll, neonpipeline, neonasm, neon, neonasmvmla | - | - |
| volk_32fc_32f_multiply_32fc | generic | sse | avx | - | neon | orc | - |
| volk_32fc_conjugate_32fc | generic | sse3 | avx | - | neon | - | - |
| volk_32fc_convert_16ic | generic | sse2 | avx2 | - | neonv8, neon | - | - |
| volk_32fc_deinterleave_32f_x2 | generic | sse | avx | - | neon | - | - |
| volk_32fc_deinterleave_64f_x2 | generic | sse2 | avx | - | neon | - | - |
| volk_32fc_deinterleave_imag_32f | generic | sse | avx | - | neon | - | - |
| volk_32fc_deinterleave_real_32f | generic | sse | avx2 | - | neon | - | - |
| volk_32fc_deinterleave_real_64f | generic | sse2 | avx2 | - | neon | - | - |
| volk_32fc_index_max_16u | generic | sse3 | avx2_variant_1, avx2_variant_0 | - | - | - | - |
| volk_32fc_index_max_32u | generic | sse3 | avx2_variant_1, avx2_variant_0 | - | neon | - | - |
| volk_32fc_magnitude_32f | generic | sse3, sse | avx | - | neon_fancy_sweet, neon | orc | - |
| volk_32fc_magnitude_squared_32f | generic | sse3, sse | avx | - | neon | - | - |
| volk_32fc_s32f_atan2_32f | generic | sse, sse4_1 | - | - | - | - | - |
| volk_32fc_s32f_deinterleave_real_16i | generic | sse | avx2 | - | - | - | - |
| volk_32fc_s32f_magnitude_16i | - | sse, sse3 | avx2 | - | - | - | - |
| volk_32fc_s32f_power_32fc | generic | sse | - | - | - | - | - |
| volk_32fc_s32f_power_spectrum_32f | generic | sse3 | - | - | neon | - | - |
| volk_32fc_s32f_x2_power_spectral_density_32f | generic | sse3 | avx | - | - | - | - |
| volk_32fc_s32fc_multiply_32fc | generic | sse3 | avx, avx_fma | - | neon | - | - |
| volk_32fc_s32fc_x2_rotator_32fc | generic | sse4_1 | avx, avx_fma | - | neon | - | - |
| volk_32fc_x2_add_32fc | generic | sse | avx | - | neon | - | - |
| volk_32fc_x2_conjugate_dot_prod_32fc | generic | sse3, sse, sse_32 | avx | - | neon | - | - |
| volk_32fc_x2_divide_32fc | generic | sse3 | avx | - | neon | - | - |
| volk_32fc_x2_dot_prod_32fc | generic | sse3, sse_64, sse_32 | avx, avx_fma | - | neon_opttests, neon_optfmaunroll, neon_optfma, neon | - | - |
| volk_32fc_x2_multiply_32fc | generic | sse3 | avx, avx2_fma | - | neon_opttests, neonasm, neon | orc | - |
| volk_32fc_x2_multiply_conjugate_32fc | generic | sse3 | avx | - | neon | - | - |
| volk_32fc_x2_s32f_square_dist_scalar_mult_32f | generic | sse3, sse | avx, avx2 | - | - | - | - |
| volk_32fc_x2_s32fc_multiply_conjugate_add_32fc | generic | sse3 | avx | - | neon | - | - |
| volk_32fc_x2_square_dist_32f | generic | sse3 | avx2 | - | neon | - | - |
| volk_32i_s32f_convert_32f | generic | sse2 | avx2 | avx512f | - | - | - |
| volk_32i_x2_and_32i | generic | sse | avx2 | avx512f | neon | orc | - |
| volk_32i_x2_or_32i | generic | sse | avx2 | avx512f | neon | orc | - |
| volk_32u_byteswap | generic | sse2 | avx2 | - | neonv8, neon | - | - |
| volk_32u_popcnt | generic | sse4_2 | - | - | - | - | - |
| volk_32u_reverse_32u | - | - | - | - | neonv8 | - | dword_shuffle, lut, 2001magic, byte_shuffle, bintree_permute_top_down, bintree_permute_bottom_up, 1972magic |
| volk_64f_convert_32f | generic | sse2 | avx | avx512f | - | - | - |
| volk_64f_x2_add_64f | generic | sse2 | avx | - | - | - | - |
| volk_64f_x2_max_64f | generic | sse2 | avx | avx512f | - | - | - |
| volk_64f_x2_min_64f | generic | sse2 | avx | avx512f | - | - | - |
| volk_64f_x2_multiply_64f | generic | sse2 | avx | - | - | - | - |
| volk_64u_byteswap | generic | sse2, ssse3 | avx2 | - | neonv8 | - | - |
| volk_64u_popcnt | generic | sse4_2 | - | - | neon | - | - |
| volk_8i_convert_16i | generic | sse4_1 | avx2 | - | neon | orc | - |
| volk_8i_s32f_convert_32f | generic | sse4_1 | avx2 | - | neon | orc | - |
| volk_8ic_deinterleave_16i_x2 | generic | sse4_1 | avx, avx2 | - | - | - | - |
| volk_8ic_deinterleave_real_16i | generic | sse4_1 | avx, avx2 | - | - | - | - |
| volk_8ic_deinterleave_real_8i | generic | ssse3 | avx, avx2 | - | neon | - | - |
| volk_8ic_s32f_deinterleave_32f_x2 | generic | sse4_1, sse | avx2 | - | - | - | - |
| volk_8ic_s32f_deinterleave_real_32f | generic | sse, sse4_1 | avx2 | - | - | - | - |
| volk_8ic_x2_multiply_conjugate_16ic | generic | sse4_1 | avx2 | - | - | - | - |
| volk_8ic_x2_s32f_multiply_conjugate_32fc | generic | sse4_1 | avx2 | - | - | - | - |
| volk_8u_x2_encodeframepolar_8u | generic | ssse3 | avx2 | - | - | - | - |
| volk_8u_x3_encodepolar_8u_x2 | generic | ssse3 | avx2 | - | - | - | - |
| volk_8u_x4_conv_k7_r2_8u | generic | - | avx2 | - | - | - | spiral |