mirror of
https://github.com/ggerganov/llama.cpp.git
synced 2024-11-11 21:39:52 +00:00
652 lines
17 KiB
C
652 lines
17 KiB
C
#pragma once
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#include "ggml.h"
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// GGML internal header
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#include <assert.h>
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#include <stdlib.h> // load `stdlib.h` before other headers to work around MinGW bug: https://sourceforge.net/p/mingw-w64/bugs/192/
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#include <stddef.h>
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#include <stdbool.h>
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#include <string.h> // memcpy
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#include <math.h> // fabsf
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#undef MIN
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#undef MAX
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#if defined(_WIN32)
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#define m512bh(p) p
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#define m512i(p) p
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#else
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#define m512bh(p) (__m512bh)(p)
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#define m512i(p) (__m512i)(p)
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#endif
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/**
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* Converts brain16 to float32.
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*
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* The bfloat16 floating point format has the following structure:
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*
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* ┌sign
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* │
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* │ ┌exponent
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* │ │
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* │ │ ┌mantissa
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* │ │ │
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* │┌──┴───┐┌─┴───┐
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* 0b0000000000000000 brain16
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*
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* Since bf16 has the same number of exponent bits as a 32bit float,
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* encoding and decoding numbers becomes relatively straightforward.
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*
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* ┌sign
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* │
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* │ ┌exponent
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* │ │
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* │ │ ┌mantissa
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* │ │ │
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* │┌──┴───┐┌─┴───────────────────┐
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* 0b00000000000000000000000000000000 IEEE binary32
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*
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* For comparison, the standard fp16 format has fewer exponent bits.
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*
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* ┌sign
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* │
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* │ ┌exponent
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* │ │
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* │ │ ┌mantissa
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* │ │ │
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* │┌─┴─┐┌─┴──────┐
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* 0b0000000000000000 IEEE binary16
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*
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* @see IEEE 754-2008
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*/
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static inline float ggml_compute_bf16_to_fp32(ggml_bf16_t h) {
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union {
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float f;
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uint32_t i;
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} u;
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u.i = (uint32_t)h.bits << 16;
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return u.f;
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}
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/**
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* Converts float32 to brain16.
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*
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* This function is binary identical to AMD Zen4 VCVTNEPS2BF16.
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* Subnormals shall be flushed to zero, and NANs will be quiet.
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* This code should vectorize nicely if using modern compilers.
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*/
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static inline ggml_bf16_t ggml_compute_fp32_to_bf16(float s) {
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ggml_bf16_t h;
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union {
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float f;
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uint32_t i;
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} u;
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u.f = s;
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if ((u.i & 0x7fffffff) > 0x7f800000) { /* nan */
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h.bits = (u.i >> 16) | 64; /* force to quiet */
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return h;
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}
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if (!(u.i & 0x7f800000)) { /* subnormal */
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h.bits = (u.i & 0x80000000) >> 16; /* flush to zero */
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return h;
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}
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h.bits = (u.i + (0x7fff + ((u.i >> 16) & 1))) >> 16;
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return h;
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}
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#define GGML_FP32_TO_BF16(x) ggml_compute_fp32_to_bf16(x)
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#define GGML_BF16_TO_FP32(x) ggml_compute_bf16_to_fp32(x)
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#ifdef __cplusplus
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extern "C" {
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#endif
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// static_assert should be a #define, but if it's not,
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// fall back to the _Static_assert C11 keyword.
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// if C99 - static_assert is noop
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// ref: https://stackoverflow.com/a/53923785/4039976
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#ifndef __cplusplus
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#ifndef static_assert
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201100L)
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#define static_assert(cond, msg) _Static_assert(cond, msg)
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#else
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#define static_assert(cond, msg) struct global_scope_noop_trick
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#endif
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#endif
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#endif
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// __FMA__ and __F16C__ are not defined in MSVC, however they are implied with AVX2/AVX512
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#if defined(_MSC_VER) && (defined(__AVX2__) || defined(__AVX512F__))
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#ifndef __FMA__
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#define __FMA__
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#endif
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#ifndef __F16C__
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#define __F16C__
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#endif
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#endif
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// __SSE3__ and __SSSE3__ are not defined in MSVC, but SSE3/SSSE3 are present when AVX/AVX2/AVX512 are available
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#if defined(_MSC_VER) && (defined(__AVX__) || defined(__AVX2__) || defined(__AVX512F__))
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#ifndef __SSE3__
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#define __SSE3__
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#endif
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#ifndef __SSSE3__
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#define __SSSE3__
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#endif
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#endif
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#if defined(__ARM_FEATURE_SVE)
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#include <arm_sve.h>
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#endif
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// 16-bit float
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// on Arm, we use __fp16
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// on x86, we use uint16_t
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#if defined(__ARM_NEON)
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// if YCM cannot find <arm_neon.h>, make a symbolic link to it, for example:
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//
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// $ ln -sfn /Library/Developer/CommandLineTools/usr/lib/clang/13.1.6/include/arm_neon.h ./src/
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//
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#include <arm_neon.h>
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#ifdef _MSC_VER
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typedef uint16_t ggml_fp16_internal_t;
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#define ggml_vld1q_u32(w,x,y,z) { ((w) + ((uint64_t)(x) << 32)), ((y) + ((uint64_t)(z) << 32)) }
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#else
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typedef __fp16 ggml_fp16_internal_t;
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#define ggml_vld1q_u32(w,x,y,z) { (w), (x), (y), (z) }
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#endif // _MSC_VER
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#if !defined(__aarch64__)
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// 32-bit ARM compatibility
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// vaddvq_s16
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// vpaddq_s16
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// vpaddq_s32
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// vaddvq_s32
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// vaddvq_f32
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// vmaxvq_f32
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// vcvtnq_s32_f32
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// vzip1_u8
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// vzip2_u8
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inline static int32_t vaddvq_s16(int16x8_t v) {
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return
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(int32_t)vgetq_lane_s16(v, 0) + (int32_t)vgetq_lane_s16(v, 1) +
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(int32_t)vgetq_lane_s16(v, 2) + (int32_t)vgetq_lane_s16(v, 3) +
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(int32_t)vgetq_lane_s16(v, 4) + (int32_t)vgetq_lane_s16(v, 5) +
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(int32_t)vgetq_lane_s16(v, 6) + (int32_t)vgetq_lane_s16(v, 7);
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}
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inline static int16x8_t vpaddq_s16(int16x8_t a, int16x8_t b) {
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int16x4_t a0 = vpadd_s16(vget_low_s16(a), vget_high_s16(a));
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int16x4_t b0 = vpadd_s16(vget_low_s16(b), vget_high_s16(b));
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return vcombine_s16(a0, b0);
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}
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inline static int32x4_t vpaddq_s32(int32x4_t a, int32x4_t b) {
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int32x2_t a0 = vpadd_s32(vget_low_s32(a), vget_high_s32(a));
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int32x2_t b0 = vpadd_s32(vget_low_s32(b), vget_high_s32(b));
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return vcombine_s32(a0, b0);
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}
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inline static int32_t vaddvq_s32(int32x4_t v) {
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return vgetq_lane_s32(v, 0) + vgetq_lane_s32(v, 1) + vgetq_lane_s32(v, 2) + vgetq_lane_s32(v, 3);
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}
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inline static float vaddvq_f32(float32x4_t v) {
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return vgetq_lane_f32(v, 0) + vgetq_lane_f32(v, 1) + vgetq_lane_f32(v, 2) + vgetq_lane_f32(v, 3);
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}
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inline static float vmaxvq_f32(float32x4_t v) {
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return
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MAX(MAX(vgetq_lane_f32(v, 0), vgetq_lane_f32(v, 1)),
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MAX(vgetq_lane_f32(v, 2), vgetq_lane_f32(v, 3)));
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}
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inline static int32x4_t vcvtnq_s32_f32(float32x4_t v) {
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int32x4_t res;
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res[0] = roundf(vgetq_lane_f32(v, 0));
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res[1] = roundf(vgetq_lane_f32(v, 1));
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res[2] = roundf(vgetq_lane_f32(v, 2));
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res[3] = roundf(vgetq_lane_f32(v, 3));
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return res;
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}
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inline static uint8x8_t vzip1_u8(uint8x8_t a, uint8x8_t b) {
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uint8x8_t res;
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res[0] = a[0]; res[1] = b[0];
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res[2] = a[1]; res[3] = b[1];
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res[4] = a[2]; res[5] = b[2];
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res[6] = a[3]; res[7] = b[3];
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return res;
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}
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inline static uint8x8_t vzip2_u8(uint8x8_t a, uint8x8_t b) {
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uint8x8_t res;
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res[0] = a[4]; res[1] = b[4];
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res[2] = a[5]; res[3] = b[5];
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res[4] = a[6]; res[5] = b[6];
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res[6] = a[7]; res[7] = b[7];
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return res;
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}
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// vld1q_s16_x2
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// vld1q_u8_x2
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// vld1q_u8_x4
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// vld1q_s8_x2
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// vld1q_s8_x4
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// TODO: double-check these work correctly
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typedef struct ggml_int16x8x2_t {
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int16x8_t val[2];
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} ggml_int16x8x2_t;
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inline static ggml_int16x8x2_t ggml_vld1q_s16_x2(const int16_t * ptr) {
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ggml_int16x8x2_t res;
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res.val[0] = vld1q_s16(ptr + 0);
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res.val[1] = vld1q_s16(ptr + 8);
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return res;
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}
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typedef struct ggml_uint8x16x2_t {
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uint8x16_t val[2];
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} ggml_uint8x16x2_t;
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inline static ggml_uint8x16x2_t ggml_vld1q_u8_x2(const uint8_t * ptr) {
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ggml_uint8x16x2_t res;
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res.val[0] = vld1q_u8(ptr + 0);
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res.val[1] = vld1q_u8(ptr + 16);
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return res;
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}
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typedef struct ggml_uint8x16x4_t {
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uint8x16_t val[4];
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} ggml_uint8x16x4_t;
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inline static ggml_uint8x16x4_t ggml_vld1q_u8_x4(const uint8_t * ptr) {
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ggml_uint8x16x4_t res;
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res.val[0] = vld1q_u8(ptr + 0);
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res.val[1] = vld1q_u8(ptr + 16);
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res.val[2] = vld1q_u8(ptr + 32);
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res.val[3] = vld1q_u8(ptr + 48);
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return res;
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}
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typedef struct ggml_int8x16x2_t {
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int8x16_t val[2];
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} ggml_int8x16x2_t;
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inline static ggml_int8x16x2_t ggml_vld1q_s8_x2(const int8_t * ptr) {
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ggml_int8x16x2_t res;
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res.val[0] = vld1q_s8(ptr + 0);
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res.val[1] = vld1q_s8(ptr + 16);
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return res;
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}
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typedef struct ggml_int8x16x4_t {
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int8x16_t val[4];
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} ggml_int8x16x4_t;
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inline static ggml_int8x16x4_t ggml_vld1q_s8_x4(const int8_t * ptr) {
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ggml_int8x16x4_t res;
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res.val[0] = vld1q_s8(ptr + 0);
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res.val[1] = vld1q_s8(ptr + 16);
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res.val[2] = vld1q_s8(ptr + 32);
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res.val[3] = vld1q_s8(ptr + 48);
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return res;
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}
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// NOTE: not tested
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inline static int8x16_t ggml_vqtbl1q_s8(int8x16_t a, uint8x16_t b) {
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int8x16_t res;
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res[ 0] = a[b[ 0]];
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res[ 1] = a[b[ 1]];
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res[ 2] = a[b[ 2]];
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res[ 3] = a[b[ 3]];
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res[ 4] = a[b[ 4]];
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res[ 5] = a[b[ 5]];
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res[ 6] = a[b[ 6]];
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res[ 7] = a[b[ 7]];
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res[ 8] = a[b[ 8]];
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res[ 9] = a[b[ 9]];
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res[10] = a[b[10]];
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res[11] = a[b[11]];
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res[12] = a[b[12]];
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res[13] = a[b[13]];
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res[14] = a[b[14]];
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res[15] = a[b[15]];
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return res;
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}
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// NOTE: not tested
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inline static uint8x16_t ggml_vqtbl1q_u8(uint8x16_t a, uint8x16_t b) {
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uint8x16_t res;
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res[ 0] = a[b[ 0]];
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res[ 1] = a[b[ 1]];
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res[ 2] = a[b[ 2]];
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res[ 3] = a[b[ 3]];
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res[ 4] = a[b[ 4]];
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res[ 5] = a[b[ 5]];
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res[ 6] = a[b[ 6]];
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res[ 7] = a[b[ 7]];
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res[ 8] = a[b[ 8]];
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res[ 9] = a[b[ 9]];
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res[10] = a[b[10]];
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res[11] = a[b[11]];
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res[12] = a[b[12]];
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res[13] = a[b[13]];
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res[14] = a[b[14]];
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res[15] = a[b[15]];
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return res;
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}
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#else
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#define ggml_int16x8x2_t int16x8x2_t
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#define ggml_uint8x16x2_t uint8x16x2_t
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#define ggml_uint8x16x4_t uint8x16x4_t
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#define ggml_int8x16x2_t int8x16x2_t
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#define ggml_int8x16x4_t int8x16x4_t
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#define ggml_vld1q_s16_x2 vld1q_s16_x2
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#define ggml_vld1q_u8_x2 vld1q_u8_x2
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#define ggml_vld1q_u8_x4 vld1q_u8_x4
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#define ggml_vld1q_s8_x2 vld1q_s8_x2
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#define ggml_vld1q_s8_x4 vld1q_s8_x4
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#define ggml_vqtbl1q_s8 vqtbl1q_s8
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#define ggml_vqtbl1q_u8 vqtbl1q_u8
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#endif // !defined(__aarch64__)
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#if !defined(__ARM_FEATURE_DOTPROD)
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inline static int32x4_t ggml_vdotq_s32(int32x4_t acc, int8x16_t a, int8x16_t b) {
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const int16x8_t p0 = vmull_s8(vget_low_s8 (a), vget_low_s8 (b));
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const int16x8_t p1 = vmull_s8(vget_high_s8(a), vget_high_s8(b));
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return vaddq_s32(acc, vaddq_s32(vpaddlq_s16(p0), vpaddlq_s16(p1)));
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}
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#else
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#define ggml_vdotq_s32(a, b, c) vdotq_s32(a, b, c)
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#endif // !defined(__ARM_FEATURE_DOTPROD)
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#endif // defined(__ARM_NEON)
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#if defined(__ARM_NEON) && !defined(_MSC_VER)
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#define GGML_COMPUTE_FP16_TO_FP32(x) ggml_compute_fp16_to_fp32(x)
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#define GGML_COMPUTE_FP32_TO_FP16(x) ggml_compute_fp32_to_fp16(x)
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#define GGML_FP16_TO_FP32(x) ggml_compute_fp16_to_fp32(x)
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static inline float ggml_compute_fp16_to_fp32(ggml_fp16_t h) {
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ggml_fp16_internal_t tmp;
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memcpy(&tmp, &h, sizeof(ggml_fp16_t));
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return (float)tmp;
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}
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static inline ggml_fp16_t ggml_compute_fp32_to_fp16(float f) {
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ggml_fp16_t res;
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ggml_fp16_internal_t tmp = f;
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memcpy(&res, &tmp, sizeof(ggml_fp16_t));
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return res;
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}
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#else
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#ifdef __wasm_simd128__
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#include <wasm_simd128.h>
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#else
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#ifdef __POWER9_VECTOR__
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#include <altivec.h>
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#undef bool
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#define bool _Bool
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#else
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#include <intrin.h>
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#else
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#if defined(__AVX__) || defined(__AVX2__) || defined(__AVX512F__) || defined(__SSSE3__) || defined(__SSE3__) || defined(__SSE__)
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#if !defined(__riscv)
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#include <immintrin.h>
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#endif
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#endif
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#endif
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#endif
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#endif
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#ifdef __riscv_v_intrinsic
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#include <riscv_vector.h>
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#endif
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#if defined(__loongarch64)
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#if defined(__loongarch_asx)
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#include <lasxintrin.h>
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#endif
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#if defined(__loongarch_sx)
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#include <lsxintrin.h>
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#endif
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#endif
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#if defined(__loongarch_asx)
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typedef union {
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int32_t i;
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float f;
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} ft_union;
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/* float type data load instructions */
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static __m128 __lsx_vreplfr2vr_s(float val) {
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ft_union fi_tmpval = {.f = val};
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return (__m128)__lsx_vreplgr2vr_w(fi_tmpval.i);
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}
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static __m256 __lasx_xvreplfr2vr_s(float val) {
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ft_union fi_tmpval = {.f = val};
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return (__m256)__lasx_xvreplgr2vr_w(fi_tmpval.i);
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}
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#endif
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#ifdef __F16C__
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#ifdef _MSC_VER
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#define GGML_COMPUTE_FP16_TO_FP32(x) _mm_cvtss_f32(_mm_cvtph_ps(_mm_cvtsi32_si128(x)))
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#define GGML_COMPUTE_FP32_TO_FP16(x) _mm_extract_epi16(_mm_cvtps_ph(_mm_set_ss(x), 0), 0)
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#else
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#define GGML_COMPUTE_FP16_TO_FP32(x) _cvtsh_ss(x)
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#define GGML_COMPUTE_FP32_TO_FP16(x) _cvtss_sh(x, 0)
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#endif
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#elif defined(__POWER9_VECTOR__)
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#define GGML_COMPUTE_FP16_TO_FP32(x) ggml_compute_fp16_to_fp32(x)
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#define GGML_COMPUTE_FP32_TO_FP16(x) ggml_compute_fp32_to_fp16(x)
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/* the inline asm below is about 12% faster than the lookup method */
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#define GGML_FP16_TO_FP32(x) GGML_COMPUTE_FP16_TO_FP32(x)
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#define GGML_FP32_TO_FP16(x) GGML_COMPUTE_FP32_TO_FP16(x)
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static inline float ggml_compute_fp16_to_fp32(ggml_fp16_t h) {
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register float f;
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register double d;
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__asm__(
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"mtfprd %0,%2\n"
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"xscvhpdp %0,%0\n"
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"frsp %1,%0\n" :
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/* temp */ "=d"(d),
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/* out */ "=f"(f):
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/* in */ "r"(h));
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return f;
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}
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static inline ggml_fp16_t ggml_compute_fp32_to_fp16(float f) {
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register double d;
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register ggml_fp16_t r;
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__asm__( /* xscvdphp can work on double or single precision */
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"xscvdphp %0,%2\n"
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"mffprd %1,%0\n" :
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/* temp */ "=d"(d),
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/* out */ "=r"(r):
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/* in */ "f"(f));
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return r;
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}
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#else
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// FP16 <-> FP32
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// ref: https://github.com/Maratyszcza/FP16
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static inline float fp32_from_bits(uint32_t w) {
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union {
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uint32_t as_bits;
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float as_value;
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} fp32;
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fp32.as_bits = w;
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return fp32.as_value;
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}
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static inline uint32_t fp32_to_bits(float f) {
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union {
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float as_value;
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uint32_t as_bits;
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} fp32;
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fp32.as_value = f;
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return fp32.as_bits;
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}
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static inline float ggml_compute_fp16_to_fp32(ggml_fp16_t h) {
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const uint32_t w = (uint32_t) h << 16;
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const uint32_t sign = w & UINT32_C(0x80000000);
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const uint32_t two_w = w + w;
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const uint32_t exp_offset = UINT32_C(0xE0) << 23;
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) || defined(__GNUC__) && !defined(__STRICT_ANSI__)
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const float exp_scale = 0x1.0p-112f;
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#else
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const float exp_scale = fp32_from_bits(UINT32_C(0x7800000));
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#endif
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const float normalized_value = fp32_from_bits((two_w >> 4) + exp_offset) * exp_scale;
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const uint32_t magic_mask = UINT32_C(126) << 23;
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const float magic_bias = 0.5f;
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const float denormalized_value = fp32_from_bits((two_w >> 17) | magic_mask) - magic_bias;
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const uint32_t denormalized_cutoff = UINT32_C(1) << 27;
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const uint32_t result = sign |
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(two_w < denormalized_cutoff ? fp32_to_bits(denormalized_value) : fp32_to_bits(normalized_value));
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return fp32_from_bits(result);
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}
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static inline ggml_fp16_t ggml_compute_fp32_to_fp16(float f) {
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) || defined(__GNUC__) && !defined(__STRICT_ANSI__)
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const float scale_to_inf = 0x1.0p+112f;
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const float scale_to_zero = 0x1.0p-110f;
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#else
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const float scale_to_inf = fp32_from_bits(UINT32_C(0x77800000));
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const float scale_to_zero = fp32_from_bits(UINT32_C(0x08800000));
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#endif
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float base = (fabsf(f) * scale_to_inf) * scale_to_zero;
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const uint32_t w = fp32_to_bits(f);
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const uint32_t shl1_w = w + w;
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const uint32_t sign = w & UINT32_C(0x80000000);
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uint32_t bias = shl1_w & UINT32_C(0xFF000000);
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if (bias < UINT32_C(0x71000000)) {
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bias = UINT32_C(0x71000000);
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}
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base = fp32_from_bits((bias >> 1) + UINT32_C(0x07800000)) + base;
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const uint32_t bits = fp32_to_bits(base);
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const uint32_t exp_bits = (bits >> 13) & UINT32_C(0x00007C00);
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const uint32_t mantissa_bits = bits & UINT32_C(0x00000FFF);
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const uint32_t nonsign = exp_bits + mantissa_bits;
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return (sign >> 16) | (shl1_w > UINT32_C(0xFF000000) ? UINT16_C(0x7E00) : nonsign);
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}
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#define GGML_COMPUTE_FP16_TO_FP32(x) ggml_compute_fp16_to_fp32(x)
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#define GGML_COMPUTE_FP32_TO_FP16(x) ggml_compute_fp32_to_fp16(x)
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#endif // __F16C__
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#endif // defined(__ARM_NEON) && (!defined(__MSC_VER)
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// precomputed f32 table for f16 (256 KB)
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// defined in ggml.c, initialized in ggml_init()
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extern float ggml_table_f32_f16[1 << 16];
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// On ARM NEON, it's quicker to directly convert x -> x instead of calling into ggml_lookup_fp16_to_fp32,
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// so we define GGML_FP16_TO_FP32 and GGML_FP32_TO_FP16 elsewhere for NEON.
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// This is also true for POWER9.
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#if !defined(GGML_FP16_TO_FP32)
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inline static float ggml_lookup_fp16_to_fp32(ggml_fp16_t f) {
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uint16_t s;
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memcpy(&s, &f, sizeof(uint16_t));
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return ggml_table_f32_f16[s];
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}
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#define GGML_FP16_TO_FP32(x) ggml_lookup_fp16_to_fp32(x)
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#endif
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#if !defined(GGML_FP32_TO_FP16)
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#define GGML_FP32_TO_FP16(x) GGML_COMPUTE_FP32_TO_FP16(x)
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#endif
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#define GGML_HASHTABLE_FULL ((size_t)-1)
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#define GGML_HASHTABLE_ALREADY_EXISTS ((size_t)-2)
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struct ggml_hash_set ggml_hash_set_new(size_t size);
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bool ggml_hash_contains (const struct ggml_hash_set hash_set, struct ggml_tensor * key);
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// returns GGML_HASHTABLE_FULL if table is full, otherwise the current index of the key or where it should be inserted
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size_t ggml_hash_find (const struct ggml_hash_set hash_set, struct ggml_tensor * key);
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// returns GGML_HASHTABLE_ALREADY_EXISTS if key already exists, index otherwise, asserts if table is full
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size_t ggml_hash_insert ( struct ggml_hash_set hash_set, struct ggml_tensor * key);
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// return index, asserts if table is full
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size_t ggml_hash_find_or_insert( struct ggml_hash_set hash_set, struct ggml_tensor * key);
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#ifdef __cplusplus
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}
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#endif
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