diff options
Diffstat (limited to 'include/fbgemm/PackingTraits-inl.h')
| -rw-r--r-- | include/fbgemm/PackingTraits-inl.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fbgemm/PackingTraits-inl.h b/include/fbgemm/PackingTraits-inl.h index 5b50bc9..76eb425 100644 --- a/include/fbgemm/PackingTraits-inl.h +++ b/include/fbgemm/PackingTraits-inl.h @@ -57,6 +57,10 @@ struct PackingTraits< inst_set_t::avx2, typename std::enable_if<is_8bit<T>::value>::type> { static constexpr int MR{12}; ///< Register block for M dimension. + static constexpr int NR_MIN{ + 8}; ///< Minimum register block for N dimension. + ///< 8 because 8*ROW_INTERLEAVE int8 elements + ///< completely fill a 256-bit wide vector. static constexpr int NR{8}; ///< Register block for N dimension. ///< NR = VLEN/8/ROW_INTERLEAVE = 256 / 8 / 4 = 8. ///< Total registers used for N dimension: NCB/NR. @@ -88,6 +92,11 @@ struct PackingTraits< inst_set_t::avx2, typename std::enable_if<is_8bit<T>::value>::type> { static constexpr int MR{3}; ///< Register block for M dimension. + static constexpr int NR_MIN{ + 16}; ///< Minimum register block for N dimension. + ///< 16 because 16*ROW_INTERLEAVE int8 elements + ///< completely fill a 256-bit wide vector. + static constexpr int NR{ 16}; ///< Register block for N dimension; ///< NR = VLEN/8/ROW_INTERLEAVE = 256 / 8 / 2 = 16. |