From bdd98c74e24b38a820aacecd5d0cef1149b66879 Mon Sep 17 00:00:00 2001 From: Eve <139727413+netrunnereve@users.noreply.github.com> Date: Sun, 5 Jan 2025 14:59:56 -0500 Subject: [PATCH] try precalculating products of a and q2_k scales --- .../vulkan-shaders/mul_mat_vec_q2_k.comp | 28 +++++++++++++------ 1 file changed, 20 insertions(+), 8 deletions(-) diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q2_k.comp b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q2_k.comp index 098771493..0a7ee58b3 100644 --- a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q2_k.comp +++ b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q2_k.comp @@ -54,6 +54,18 @@ void compute_outputs(const uint32_t first_row, const uint32_t num_rows) { uvec2 qs0 = uvec2(unpack8(qs0_u16)); uvec2 qs16 = uvec2(unpack8(qs16_u16)); + FLOAT_TYPE sc_q[2][8]; + [[unroll]] for (int l = 0; l < 2; ++l) { + sc_q[l][0] = sccache[ix][v_im][0] * FLOAT_TYPE((qs0[l] ) & 3); + sc_q[l][1] = sccache[ix][v_im][1] * FLOAT_TYPE((qs16[l] ) & 3); + sc_q[l][2] = sccache[ix][v_im][2] * FLOAT_TYPE((qs0[l] >> 2) & 3); + sc_q[l][3] = sccache[ix][v_im][3] * FLOAT_TYPE((qs16[l] >> 2) & 3); + sc_q[l][4] = sccache[ix][v_im][4] * FLOAT_TYPE((qs0[l] >> 4) & 3); + sc_q[l][5] = sccache[ix][v_im][5] * FLOAT_TYPE((qs16[l] >> 4) & 3); + sc_q[l][6] = sccache[ix][v_im][6] * FLOAT_TYPE((qs0[l] >> 6) & 3); + sc_q[l][7] = sccache[ix][v_im][7] * FLOAT_TYPE((qs16[l] >> 6) & 3); + } + [[unroll]] for (uint j = 0; j < NUM_COLS; ++j) { B_TYPE_VEC2 b0 = data_b_v2[(j*p.batch_stride_b + b_offset + y_idx) / 2]; B_TYPE_VEC2 b16 = data_b_v2[(j*p.batch_stride_b + b_offset + y_idx) / 2 + 8]; @@ -67,14 +79,14 @@ void compute_outputs(const uint32_t first_row, const uint32_t num_rows) { FLOAT_TYPE sum1 = FLOAT_TYPE(0.0); FLOAT_TYPE sum2 = FLOAT_TYPE(0.0); [[unroll]] for (int l = 0; l < 2; ++l) { - sum1 = fma(FLOAT_TYPE(b0[l]), sccache[ix][v_im][0] * FLOAT_TYPE((qs0[l] ) & 3), - fma(FLOAT_TYPE(b16[l]), sccache[ix][v_im][1] * FLOAT_TYPE((qs16[l] ) & 3), - fma(FLOAT_TYPE(b32[l]), sccache[ix][v_im][2] * FLOAT_TYPE((qs0[l] >> 2) & 3), - fma(FLOAT_TYPE(b48[l]), sccache[ix][v_im][3] * FLOAT_TYPE((qs16[l] >> 2) & 3), - fma(FLOAT_TYPE(b64[l]), sccache[ix][v_im][4] * FLOAT_TYPE((qs0[l] >> 4) & 3), - fma(FLOAT_TYPE(b80[l]), sccache[ix][v_im][5] * FLOAT_TYPE((qs16[l] >> 4) & 3), - fma(FLOAT_TYPE(b96[l]), sccache[ix][v_im][6] * FLOAT_TYPE((qs0[l] >> 6) & 3), - fma(FLOAT_TYPE(b112[l]), sccache[ix][v_im][7] * FLOAT_TYPE((qs16[l] >> 6) & 3), sum1)))))))); + sum1 = fma(FLOAT_TYPE(b0[l]), sc_q[l][0], + fma(FLOAT_TYPE(b16[l]), sc_q[l][1], + fma(FLOAT_TYPE(b32[l]), sc_q[l][2], + fma(FLOAT_TYPE(b48[l]), sc_q[l][3], + fma(FLOAT_TYPE(b64[l]), sc_q[l][4], + fma(FLOAT_TYPE(b80[l]), sc_q[l][5], + fma(FLOAT_TYPE(b96[l]), sc_q[l][6], + fma(FLOAT_TYPE(b112[l]), sc_q[l][7], sum1)))))))); sum2 = fma(FLOAT_TYPE(b0[l]), sccache[ix][v_im][ 8], fma(FLOAT_TYPE(b16[l]), sccache[ix][v_im][ 9], fma(FLOAT_TYPE(b32[l]), sccache[ix][v_im][10],