File size: 9,007 Bytes
13d3ba0 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 |
#include <stdint.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>
#include <sys/time.h>
#include <arm_neon.h>
#include <Accelerate/Accelerate.h>
const int M = 1280;
const int N = 1536;
const int K = 1280;
uint64_t get_time_us(void) {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000000 + tv.tv_usec;
}
//
// naive implementation
//
void mul_mat_f32_0(
const float * restrict src0, // M x K
const float * restrict src1, // N x K (transposed)
float * dst,
int m, int n, int k) {
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
float sum = 0;
for (int l = 0; l < k; l++) {
sum += src0[i*k + l] * src1[j*k + l];
}
dst[i*n + j] = sum;
}
}
}
void mul_mat_f16_0(
const __fp16 * src0,
const __fp16 * src1,
float * dst,
int m, int n, int k) {
const int k32 = k & ~31;
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
float sumf = 0.0;
float16x8_t sum0 = vdupq_n_f16(0.0f);
float16x8_t sum1 = vdupq_n_f16(0.0f);
float16x8_t sum2 = vdupq_n_f16(0.0f);
float16x8_t sum3 = vdupq_n_f16(0.0f);
float16x8_t x0, x1, x2, x3;
float16x8_t y0, y1, y2, y3;
const __fp16 * restrict p0 = src0 + i*k;
const __fp16 * restrict p1 = src1 + j*k;
for (int l = 0; l < k32; l += 32) {
x0 = vld1q_f16(p0 + l + 0 );
x1 = vld1q_f16(p0 + l + 8 );
x2 = vld1q_f16(p0 + l + 16);
x3 = vld1q_f16(p0 + l + 24);
y0 = vld1q_f16(p1 + l + 0 );
y1 = vld1q_f16(p1 + l + 8 );
y2 = vld1q_f16(p1 + l + 16);
y3 = vld1q_f16(p1 + l + 24);
sum0 = vfmaq_f16(sum0, x0, y0);
sum1 = vfmaq_f16(sum1, x1, y1);
sum2 = vfmaq_f16(sum2, x2, y2);
sum3 = vfmaq_f16(sum3, x3, y3);
}
// reduce sum0..sum3 to sum0
sum0 = vaddq_f16(sum0, sum1);
sum2 = vaddq_f16(sum2, sum3);
sum0 = vaddq_f16(sum0, sum2);
// load sum0 into 2 float32x4_t
float32x4_t sum0f32 = vcvt_f32_f16(vget_low_f16(sum0));
float32x4_t sum1f32 = vcvt_f32_f16(vget_high_f16(sum0));
// reduce sum0f32 and sum1f32 to sumf
sum0f32 = vaddq_f32(sum0f32, sum1f32);
float32x2_t sumf32 = vadd_f32(vget_low_f32(sum0f32), vget_high_f32(sum0f32));
sumf = vget_lane_f32(sumf32, 0) + vget_lane_f32(sumf32, 1);
//sumf = sum0[0] + sum0[1] + sum0[2] + sum0[3] + sum0[4] + sum0[5] + sum0[6] + sum0[7];
for (int l = k32; l < k32; l++) {
sumf += p0[l]*p1[l];
}
dst[i*n + j] = sumf;
}
}
}
// blocking with block size 32
void mul_mat_f16_1(
const __fp16 * src0,
const __fp16 * src1,
float * dst,
int m, int n, int k) {
const int k32 = k & ~31;
const int bs = 32;
memset(dst, 0, m*n*sizeof(float));
for (int i = 0; i < m; i += bs) {
for (int j = 0; j < n; j += bs) {
for (int l = 0; l < k; l += bs) {
for (int ii = i; ii < i + bs; ii++) {
const __fp16 * restrict p0 = src0 + ii*k;
float16x8_t x0, x1, x2, x3;
x0 = vld1q_f16(p0 + l + 0 );
x1 = vld1q_f16(p0 + l + 8 );
x2 = vld1q_f16(p0 + l + 16);
x3 = vld1q_f16(p0 + l + 24);
for (int jj = j; jj < j + bs; jj++) {
float sumf = 0.0;
float16x8_t sum0 = vdupq_n_f16(0.0f);
float16x8_t sum1 = vdupq_n_f16(0.0f);
float16x8_t sum2 = vdupq_n_f16(0.0f);
float16x8_t sum3 = vdupq_n_f16(0.0f);
float16x8_t y0, y1, y2, y3;
const __fp16 * restrict p1 = src1 + jj*k;
y0 = vld1q_f16(p1 + l + 0 );
y1 = vld1q_f16(p1 + l + 8 );
y2 = vld1q_f16(p1 + l + 16);
y3 = vld1q_f16(p1 + l + 24);
sum0 = vfmaq_f16(sum0, x0, y0);
sum1 = vfmaq_f16(sum1, x1, y1);
sum2 = vfmaq_f16(sum2, x2, y2);
sum3 = vfmaq_f16(sum3, x3, y3);
// reduce sum0..sum3 to sum0
sum0 = vaddq_f16(sum0, sum1);
sum2 = vaddq_f16(sum2, sum3);
sum0 = vaddq_f16(sum0, sum2);
// load sum0 into 2 float32x4_t
float32x4_t sum0f32 = vcvt_f32_f16(vget_low_f16(sum0));
float32x4_t sum1f32 = vcvt_f32_f16(vget_high_f16(sum0));
// reduce sum0f32 and sum1f32 to sumf
sum0f32 = vaddq_f32(sum0f32, sum1f32);
float32x2_t sumf32 = vadd_f32(vget_low_f32(sum0f32), vget_high_f32(sum0f32));
sumf = vget_lane_f32(sumf32, 0) + vget_lane_f32(sumf32, 1);
//sumf = sum0[0] + sum0[1] + sum0[2] + sum0[3] + sum0[4] + sum0[5] + sum0[6] + sum0[7];
dst[ii*n + jj] += sumf;
}
}
}
}
}
}
void mul_mat_f8_0(
const uint8_t * src0,
const uint8_t * src1,
float * dst,
int m, int n, int k) {
const int k32 = k & ~31;
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
float sumf = 0.0;
const uint8_t * restrict p0 = src0 + i*k;
const uint8_t * restrict p1 = src1 + j*k;
for (int l = 0; l < k32; l += 32) {
uint8x16_t x0 = vld1q_u8(p0 + l + 0 );
uint8x16_t x1 = vld1q_u8(p0 + l + 16);
uint8x16_t y0 = vld1q_u8(p1 + l + 0 );
uint8x16_t y1 = vld1q_u8(p1 + l + 16);
x0 = vmulq_u8(x0, y0);
x1 = vmulq_u8(x1, y1);
sumf += vaddvq_u8(x0) + vaddvq_u8(x1);
}
dst[i*n + j] = sumf;
}
}
}
int main(int argc, const char ** argv) {
float * src0 = malloc(sizeof(float)*M*K);
float * src1 = malloc(sizeof(float)*N*K);
float * dst = malloc(sizeof(float)*M*N);
for (int i = 0; i < M*K; i++) {
src0[i] = rand() / (float)RAND_MAX;
}
for (int i = 0; i < N*K; i++) {
src1[i] = rand() / (float)RAND_MAX;
}
// convert src0 and src1 to __fp16
__fp16 * src0_fp16 = (__fp16 *)(malloc(sizeof(__fp16)*M*K));
__fp16 * src1_fp16 = (__fp16 *)(malloc(sizeof(__fp16)*N*K));
uint8_t * src0_fp8 = (uint8_t *)(malloc(sizeof(__fp16)*M*K));
uint8_t * src1_fp8 = (uint8_t *)(malloc(sizeof(__fp16)*N*K));
{
const uint64_t t_start = get_time_us();
for (int i = 0; i < M*K; i++) {
src0_fp16[i] = src0[i];
//printf("%f %f\n", src0[i], src0_fp16[i]);
//assert(!isnan(src0_fp16[i]));
}
for (int i = 0; i < N*K; i++) {
src1_fp16[i] = src1[i];
}
const uint64_t t_end = get_time_us();
printf("convert time: %f ms\n", (t_end - t_start) / 1000.0);
}
for (int i = 0; i < 16; ++i) {
printf("%f %f\n", src0[i], src0_fp16[i]);
}
int method = 0;
if (argc > 1) {
method = atoi(argv[1]);
}
const int nIter = 1;
const clock_t start = clock();
const uint64_t start_us = get_time_us();
double iM = 1.0/M;
double sum = 0.0f;
for (int i = 0; i < nIter; i++) {
if (method == 0) {
mul_mat_f32_0(src0, src1, dst, M, N, K);
}
if (method == 1) {
mul_mat_f16_0(src0_fp16, src1_fp16, dst, M, N, K);
}
if (method == 2) {
mul_mat_f16_1(src0_fp16, src1_fp16, dst, M, N, K);
}
if (method == 3) {
mul_mat_f8_0(src0_fp8, src1_fp8, dst, M, N, K);
}
if (method == 4) {
// Use BLAS sgemm from Accelerate framework
cblas_sgemm(CblasRowMajor, CblasNoTrans, CblasTrans, M, N, K, 1.0f, src0, K, src1, K, 0.0f, dst, N);
}
}
for (int i = 0; i < N; i++) {
sum += dst[i]*iM;
}
{
const clock_t end = clock();
const uint64_t end_us = get_time_us();
printf("%s: elapsed ticks: %ld\n", __func__, end - start);
printf("%s: elapsed us: %llu / %f ms\n", __func__, end_us - start_us, (end_us - start_us) / 1000.0 / nIter);
}
printf("%f\n", sum);
free(src0);
free(src1);
free(dst);
free(src0_fp16);
free(src1_fp16);
return 0;
}
|