mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2024-12-20 21:23:06 +00:00
01637e1a4c
* imatrix: adding support for legacy quants * imatrix: guard Q4_0/Q5_0 against ffn_down craziness --------- Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
260 lines
12 KiB
C
260 lines
12 KiB
C
#pragma once
|
|
|
|
#include "ggml-impl.h"
|
|
|
|
// GGML internal header
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#define QK4_0 32
|
|
typedef struct {
|
|
ggml_fp16_t d; // delta
|
|
uint8_t qs[QK4_0 / 2]; // nibbles / quants
|
|
} block_q4_0;
|
|
static_assert(sizeof(block_q4_0) == sizeof(ggml_fp16_t) + QK4_0 / 2, "wrong q4_0 block size/padding");
|
|
|
|
#define QK4_1 32
|
|
typedef struct {
|
|
ggml_fp16_t d; // delta
|
|
ggml_fp16_t m; // min
|
|
uint8_t qs[QK4_1 / 2]; // nibbles / quants
|
|
} block_q4_1;
|
|
static_assert(sizeof(block_q4_1) == 2 * sizeof(ggml_fp16_t) + QK4_1 / 2, "wrong q4_1 block size/padding");
|
|
|
|
#define QK5_0 32
|
|
typedef struct {
|
|
ggml_fp16_t d; // delta
|
|
uint8_t qh[4]; // 5-th bit of quants
|
|
uint8_t qs[QK5_0 / 2]; // nibbles / quants
|
|
} block_q5_0;
|
|
static_assert(sizeof(block_q5_0) == sizeof(ggml_fp16_t) + sizeof(uint32_t) + QK5_0 / 2, "wrong q5_0 block size/padding");
|
|
|
|
#define QK5_1 32
|
|
typedef struct {
|
|
ggml_fp16_t d; // delta
|
|
ggml_fp16_t m; // min
|
|
uint8_t qh[4]; // 5-th bit of quants
|
|
uint8_t qs[QK5_1 / 2]; // nibbles / quants
|
|
} block_q5_1;
|
|
static_assert(sizeof(block_q5_1) == 2 * sizeof(ggml_fp16_t) + sizeof(uint32_t) + QK5_1 / 2, "wrong q5_1 block size/padding");
|
|
|
|
#define QK8_0 32
|
|
typedef struct {
|
|
ggml_fp16_t d; // delta
|
|
int8_t qs[QK8_0]; // quants
|
|
} block_q8_0;
|
|
static_assert(sizeof(block_q8_0) == sizeof(ggml_fp16_t) + QK8_0, "wrong q8_0 block size/padding");
|
|
|
|
#define QK8_1 32
|
|
typedef struct {
|
|
float d; // delta
|
|
float s; // d * sum(qs[i])
|
|
int8_t qs[QK8_1]; // quants
|
|
} block_q8_1;
|
|
static_assert(sizeof(block_q8_1) == 2*sizeof(float) + QK8_1, "wrong q8_1 block size/padding");
|
|
|
|
//
|
|
// Super-block quantization structures
|
|
//
|
|
|
|
// 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
|
|
|
|
// 2-bit quantization
|
|
// weight is represented as x = a * q + b
|
|
// 16 blocks of 16 elements each
|
|
// Effectively 2.625 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 elements 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
|
|
// 8 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
|
|
// 8 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 elements 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");
|
|
|
|
// (Almost) "true" 2-bit quantization.
|
|
// Due to the need to use blocks as per ggml dsign, it ends up using
|
|
// 2.0625 bpw because of the 16-bit scale for each block of 256.
|
|
typedef struct {
|
|
ggml_fp16_t d;
|
|
uint16_t qs[QK_K/8];
|
|
} block_iq2_xxs;
|
|
static_assert(sizeof(block_iq2_xxs) == sizeof(ggml_fp16_t) + QK_K/8*sizeof(uint16_t), "wrong iq2_xxs block size/padding");
|
|
|
|
// 2.3125 bpw quants
|
|
typedef struct {
|
|
ggml_fp16_t d;
|
|
uint16_t qs[QK_K/8];
|
|
uint8_t scales[QK_K/32];
|
|
} block_iq2_xs;
|
|
static_assert(sizeof(block_iq2_xs) == sizeof(ggml_fp16_t) + QK_K/8*sizeof(uint16_t) + QK_K/32, "wrong iq2_xs block size/padding");
|
|
|
|
// Quantization
|
|
void quantize_row_q4_0_reference(const float * restrict x, block_q4_0 * restrict y, int k);
|
|
void quantize_row_q4_1_reference(const float * restrict x, block_q4_1 * restrict y, int k);
|
|
void quantize_row_q5_0_reference(const float * restrict x, block_q5_0 * restrict y, int k);
|
|
void quantize_row_q5_1_reference(const float * restrict x, block_q5_1 * restrict y, int k);
|
|
void quantize_row_q8_0_reference(const float * restrict x, block_q8_0 * restrict y, int k);
|
|
void quantize_row_q8_1_reference(const float * restrict x, block_q8_1 * restrict y, int k);
|
|
|
|
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_q4_0(const float * restrict x, void * restrict y, int k);
|
|
void quantize_row_q4_1(const float * restrict x, void * restrict y, int k);
|
|
void quantize_row_q5_0(const float * restrict x, void * restrict y, int k);
|
|
void quantize_row_q5_1(const float * restrict x, void * restrict y, int k);
|
|
void quantize_row_q8_0(const float * restrict x, void * restrict y, int k);
|
|
void quantize_row_q8_1(const float * restrict x, void * 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_q4_0(const block_q4_0 * restrict x, float * restrict y, int k);
|
|
void dequantize_row_q4_1(const block_q4_1 * restrict x, float * restrict y, int k);
|
|
void dequantize_row_q5_0(const block_q5_0 * restrict x, float * restrict y, int k);
|
|
void dequantize_row_q5_1(const block_q5_1 * restrict x, float * restrict y, int k);
|
|
void dequantize_row_q8_0(const block_q8_0 * restrict x, float * restrict y, int k);
|
|
//void dequantize_row_q8_1(const block_q8_1 * restrict x, float * restrict y, int k);
|
|
|
|
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);
|
|
void dequantize_row_iq2_xxs(const block_iq2_xxs * restrict x, float * restrict y, int k);
|
|
void dequantize_row_iq2_xs (const block_iq2_xs * restrict x, float * restrict y, int k);
|
|
|
|
// Dot product
|
|
void ggml_vec_dot_q4_0_q8_0(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
void ggml_vec_dot_q4_1_q8_1(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
void ggml_vec_dot_q5_0_q8_0(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
void ggml_vec_dot_q5_1_q8_1(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
void ggml_vec_dot_q8_0_q8_0(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
|
|
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);
|
|
void ggml_vec_dot_iq2_xxs_q8_K(int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
void ggml_vec_dot_iq2_xs_q8_K (int n, float * restrict s, const void * restrict vx, const void * restrict vy);
|
|
|
|
//
|
|
// Quantization utilizing an importance matrix (a.k.a. "Activation aWare Quantization")
|
|
//
|
|
size_t quantize_iq2_xxs(const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_iq2_xs (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q2_K (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q3_K (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q4_K (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q5_K (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q6_K (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q4_0 (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q4_1 (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q5_0 (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|
|
size_t quantize_q5_1 (const float * src, void * dst, int nrows, int n_per_row, int64_t * hist, const float * imatrix);
|