/** * llama.cpp - git 8183159cf3def112f6d1fe94815fce70e1bffa12 * * MIT License * * Copyright (c) 2023 Georgi Gerganov * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #pragma once #include "ggml.h" #include #include #include // Super-block size #ifdef GGML_QKK_64 #define QK_K 64 #define K_SCALE_SIZE 4 #else #define QK_K 256 #define K_SCALE_SIZE 12 #endif #ifndef static_assert #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201100L) #define static_assert(cond, msg) _Static_assert(cond, msg) #else #define static_assert(cond, msg) struct global_scope_noop_trick #endif #endif // // Super-block quantization structures // // 2-bit quantization // weight is represented as x = a * q + b // 16 blocks of 16 elemenets each // Effectively 2.5625 bits per weight typedef struct { uint8_t scales[QK_K/16]; // scales and mins, quantized with 4 bits uint8_t qs[QK_K/4]; // quants ggml_fp16_t d; // super-block scale for quantized scales ggml_fp16_t dmin; // super-block scale for quantized mins } block_q2_K; static_assert(sizeof(block_q2_K) == 2*sizeof(ggml_fp16_t) + QK_K/16 + QK_K/4, "wrong q2_K block size/padding"); // 3-bit quantization // weight is represented as x = a * q // 16 blocks of 16 elemenets each // Effectively 3.4375 bits per weight #ifdef GGML_QKK_64 typedef struct { uint8_t hmask[QK_K/8]; // quants - high bit uint8_t qs[QK_K/4]; // quants - low 2 bits uint8_t scales[2]; ggml_fp16_t d; // super-block scale } block_q3_K; static_assert(sizeof(block_q3_K) == sizeof(ggml_fp16_t) + QK_K / 4 + QK_K / 8 + 2, "wrong q3_K block size/padding"); #else typedef struct { uint8_t hmask[QK_K/8]; // quants - high bit uint8_t qs[QK_K/4]; // quants - low 2 bits uint8_t scales[12]; // scales, quantized with 6 bits ggml_fp16_t d; // super-block scale } block_q3_K; static_assert(sizeof(block_q3_K) == sizeof(ggml_fp16_t) + QK_K / 4 + QK_K / 8 + 12, "wrong q3_K block size/padding"); #endif // 4-bit quantization // 16 blocks of 32 elements each // weight is represented as x = a * q + b // Effectively 4.5 bits per weight #ifdef GGML_QKK_64 typedef struct { ggml_fp16_t d[2]; // super-block scales/mins uint8_t scales[2]; // 4-bit block scales/mins uint8_t qs[QK_K/2]; // 4--bit quants } block_q4_K; static_assert(sizeof(block_q4_K) == 2*sizeof(ggml_fp16_t) + QK_K/2 + 2, "wrong q4_K block size/padding"); #else typedef struct { ggml_fp16_t d; // super-block scale for quantized scales ggml_fp16_t dmin; // super-block scale for quantized mins uint8_t scales[K_SCALE_SIZE]; // scales and mins, quantized with 6 bits uint8_t qs[QK_K/2]; // 4--bit quants } block_q4_K; static_assert(sizeof(block_q4_K) == 2*sizeof(ggml_fp16_t) + K_SCALE_SIZE + QK_K/2, "wrong q4_K block size/padding"); #endif // 5-bit quantization // 16 blocks of 32 elements each // weight is represented as x = a * q + b // Effectively 5.5 bits per weight #ifdef GGML_QKK_64 typedef struct { ggml_fp16_t d; // super-block scale int8_t scales[QK_K/16]; // 8-bit block scales uint8_t qh[QK_K/8]; // quants, high bit uint8_t qs[QK_K/2]; // quants, low 4 bits } block_q5_K; static_assert(sizeof(block_q5_K) == sizeof(ggml_fp16_t) + QK_K/2 + QK_K/8 + QK_K/16, "wrong q5_K block size/padding"); #else typedef struct { ggml_fp16_t d; // super-block scale for quantized scales ggml_fp16_t dmin; // super-block scale for quantized mins uint8_t scales[K_SCALE_SIZE]; // scales and mins, quantized with 6 bits uint8_t qh[QK_K/8]; // quants, high bit uint8_t qs[QK_K/2]; // quants, low 4 bits } block_q5_K; static_assert(sizeof(block_q5_K) == 2*sizeof(ggml_fp16_t) + K_SCALE_SIZE + QK_K/2 + QK_K/8, "wrong q5_K block size/padding"); #endif // 6-bit quantization // weight is represented as x = a * q // 16 blocks of 16 elemenets each // Effectively 6.5625 bits per weight typedef struct { uint8_t ql[QK_K/2]; // quants, lower 4 bits uint8_t qh[QK_K/4]; // quants, upper 2 bits int8_t scales[QK_K/16]; // scales, quantized with 8 bits ggml_fp16_t d; // super-block scale } block_q6_K; static_assert(sizeof(block_q6_K) == sizeof(ggml_fp16_t) + QK_K / 16 + 3*QK_K/4, "wrong q6_K block size/padding"); // This is only used for intermediate quantization and dot products typedef struct { float d; // delta int8_t qs[QK_K]; // quants int16_t bsums[QK_K/16]; // sum of quants in groups of 16 } block_q8_K; static_assert(sizeof(block_q8_K) == sizeof(float) + QK_K + QK_K/16*sizeof(int16_t), "wrong q8_K block size/padding"); // Quantization void quantize_row_q2_K_reference(const float * restrict x, block_q2_K * restrict y, int k); void quantize_row_q3_K_reference(const float * restrict x, block_q3_K * restrict y, int k); void quantize_row_q4_K_reference(const float * restrict x, block_q4_K * restrict y, int k); void quantize_row_q5_K_reference(const float * restrict x, block_q5_K * restrict y, int k); void quantize_row_q6_K_reference(const float * restrict x, block_q6_K * restrict y, int k); void quantize_row_q8_K_reference(const float * restrict x, block_q8_K * restrict y, int k); void quantize_row_q2_K(const float * restrict x, void * restrict y, int k); void quantize_row_q3_K(const float * restrict x, void * restrict y, int k); void quantize_row_q4_K(const float * restrict x, void * restrict y, int k); void quantize_row_q5_K(const float * restrict x, void * restrict y, int k); void quantize_row_q6_K(const float * restrict x, void * restrict y, int k); void quantize_row_q8_K(const float * restrict x, void * restrict y, int k); // Dequantization void dequantize_row_q2_K(const block_q2_K * restrict x, float * restrict y, int k); void dequantize_row_q3_K(const block_q3_K * restrict x, float * restrict y, int k); void dequantize_row_q4_K(const block_q4_K * restrict x, float * restrict y, int k); void dequantize_row_q5_K(const block_q5_K * restrict x, float * restrict y, int k); void dequantize_row_q6_K(const block_q6_K * restrict x, float * restrict y, int k); void dequantize_row_q8_K(const block_q8_K * restrict x, float * restrict y, int k); // Dot product void ggml_vec_dot_q2_K_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy); void ggml_vec_dot_q3_K_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy); void ggml_vec_dot_q4_K_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy); void ggml_vec_dot_q5_K_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy); void ggml_vec_dot_q6_K_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy); // Quantization with histogram collection size_t ggml_quantize_q2_K(const float * src, void * dst, int n, int k, int64_t * hist); size_t ggml_quantize_q3_K(const float * src, void * dst, int n, int k, int64_t * hist); size_t ggml_quantize_q4_K(const float * src, void * dst, int n, int k, int64_t * hist); size_t ggml_quantize_q5_K(const float * src, void * dst, int n, int k, int64_t * hist); size_t ggml_quantize_q6_K(const float * src, void * dst, int n, int k, int64_t * hist);