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sbgemm: spr: process k2 and odd k at the same time

This commit is contained in:
Wangyang Guo 2021-09-15 23:59:38 -07:00
parent 7b2f5cb3b7
commit 9ab33228bb
1 changed files with 133 additions and 73 deletions
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74
kernel/x86_64/sbgemm_kernel_16x16_spr.c
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@ -64,6 +64,28 @@ typedef struct {
cfg.tile_colsb[7] = n * 4; \
_tile_loadconfig(&cfg);
/* CONFIG for handling k2 and odd tail at the same time
* tile0 -- A (m x 2k)
* tile1 -- A (m x 1)
* tile2 -- B (2k x n)
* tile3 -- B (1 x n)
* tile4 -- C (m x n)
*/
#define TCONF_TAIL(cfg, m, n, k2) \
memset(&cfg, 0, sizeof(tilecfg)); \
cfg.palette_id = 1; \
cfg.tile_rows[0] = m; \
cfg.tile_rows[1] = m; \
cfg.tile_rows[2] = k2>>1; \
cfg.tile_rows[3] = 1; \
cfg.tile_rows[4] = m; \
cfg.tile_colsb[0] = k2<<1; \
cfg.tile_colsb[1] = 4; \
cfg.tile_colsb[2] = n * 4; \
cfg.tile_colsb[3] = n * 4; \
cfg.tile_colsb[4] = n * 4; \
_tile_loadconfig(&cfg);
#define T_A0 0
#define T_A1 1
#define T_B0 2
@ -104,6 +126,7 @@ typedef struct {
#define LOAD_C(M, N) _tile_loadd(T_C##M##N, ptr_c##M##N, ldc * 4)
#define MATMUL(M, N) _tile_dpbf16ps(T_C##M##N, T_A##M, T_B##N)
#define MATMUL_TAIL(M, N) _tile_dpbf16ps(T_C00, T_A##M, T_B##N)
#define STORE_C(M, N) _tile_stored(T_C##M##N, ptr_c##M##N, ldc * 4)
@ -275,15 +298,56 @@ tail_k:
// process for k < 32
BLASLONG k32 = k & ~31;
BLASLONG k2 = k & ~1;
if (k32 != k) {
int remain_k2 = k2 - k32;
if (remain_k2 > 0) {
m_count = m;
ptr_a = A;
ptr_c = C;
if (remain_k2 > 0 && k2 != k) { // k%32 = 2x + 1 (x != 0)
for (; m_count > 0; m_count -= 16) {
int tail_m = (m_count > 16) ? 16: m_count;
__mmask16 amask = (1UL << tail_m) - 1;
ptr_a0 = ptr_a + tail_m * k32;
ptr_a1 = ptr_a + tail_m * k2;
ptr_a += tail_m * k;
ptr_b = B;
ptr_c00 = ptr_c;
ptr_c += tail_m * ldc;
n_count = n;
lda = remain_k2;
ldb = 32;
TCONF_TAIL(cfg, tail_m, 16, remain_k2);
for (; n_count > 15; n_count -= 16) {
ptr_b0 = ptr_b + 16 * k32;
ptr_b1 = ptr_b + 16 * k2;
LOAD_C(0, 0);
LOAD_A(0, x); MASK_LOAD_A_TAIL(1, x);
LOAD_B(x, 0); LOAD_B_TAIL(x, 1);
MATMUL(0, 0); MATMUL_TAIL(1, 1);
STORE_C(0, 0);
ptr_b += 16 * k;
ptr_c00 += 16;
}
if (n_count > 0) {
int tail_n = (n_count > 16) ? 16: n_count;
__mmask16 bmask = (1UL << tail_n) - 1;
ptr_b0 = ptr_b + tail_n * k32;
ptr_b1 = ptr_b + tail_n * k2;
ldb = 2 * tail_n;
TCONF_TAIL(cfg, tail_m, tail_n, remain_k2);
LOAD_C(0, 0);
LOAD_A(0, x); MASK_LOAD_A_TAIL(1, x);
LOAD_B(x, 0); MASK_LOAD_B_TAIL(x, 1);
MATMUL(0, 0); MATMUL_TAIL(1, 1);
STORE_C(0, 0);
}
}
} else if (remain_k2 > 0) { // k%32 = 2x
for (; m_count > 0; m_count -= 16) {
int tail_m = (m_count > 16) ? 16: m_count;
ptr_a0 = ptr_a + tail_m * k32;
ptr_a += tail_m * k;
ptr_b = B;
@ -305,7 +369,6 @@ tail_k:
}
if (n_count > 0) {
int tail_n = (n_count > 16) ? 16: n_count;
__mmask16 bmask = (1UL << tail_n) - 1;
ptr_b0 = ptr_b + tail_n * k32;
ldb = 2 * tail_n;
TCONF(cfg, tail_m, tail_n, remain_k2);
@ -316,11 +379,7 @@ tail_k:
STORE_C(0, 0);
}
}
}
if (k2 != k) {
m_count = m;
ptr_a = A;
ptr_c = C;
} else { // k%32 = 1
for (; m_count > 0; m_count -= 16) {
int tail_m = (m_count > 16) ? 16: m_count;
__mmask16 amask = (1UL << tail_m) - 1;
@ -356,5 +415,6 @@ tail_k:
}
}
}
return 0;
}