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Copy pathgemmkernel_2x2.c
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gemmkernel_2x2.c
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#include "common.h"
#if defined(BFLOAT16) && defined(BFLOAT16CONVERSION)
static float
bfloat16tof32 (bfloat16 f16)
{
float result = 0;
unsigned short* q = (unsigned short*)(&result);
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
q[0] = f16;
#else
q[1] = f16;
#endif
return result;
}
#define BF16TOF32(x) (bfloat16tof32(x))
#else
#define BF16TOF32(x) x
#endif
int CNAME(BLASLONG bm,BLASLONG bn,BLASLONG bk,FLOAT alpha,IFLOAT* ba,IFLOAT* bb,FLOAT* C,BLASLONG ldc
#ifdef TRMMKERNEL
,BLASLONG offset
#endif
)
{
BLASLONG i,j,k;
FLOAT *C0,*C1;
IFLOAT *ptrba,*ptrbb;
FLOAT res0,res1,res2,res3;
IFLOAT load0,load1,load2,load3,load4,load5,load6,load7;
for (j=0; j<bn/2; j+=1)
{
C0 = C;
C1 = C0+ldc;
ptrba = ba;
for (i=0; i<bm/2; i+=1)
{
ptrbb = bb;
res0 = 0;
res1 = 0;
res2 = 0;
res3 = 0;
for (k=0; k<bk/4; k+=1)
{
load0 = ptrba[2*0+0];
load1 = ptrbb[2*0+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
load2 = ptrba[2*0+1];
res1 = res1+BF16TOF32(load2)*BF16TOF32(load1);
load3 = ptrbb[2*0+1];
res2 = res2+BF16TOF32(load0)*BF16TOF32(load3);
res3 = res3+BF16TOF32(load2)*BF16TOF32(load3);
load4 = ptrba[2*1+0];
load5 = ptrbb[2*1+0];
res0 = res0+BF16TOF32(load4)*BF16TOF32(load5);
load6 = ptrba[2*1+1];
res1 = res1+BF16TOF32(load6)*BF16TOF32(load5);
load7 = ptrbb[2*1+1];
res2 = res2+BF16TOF32(load4)*BF16TOF32(load7);
res3 = res3+BF16TOF32(load6)*BF16TOF32(load7);
load0 = ptrba[2*2+0];
load1 = ptrbb[2*2+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
load2 = ptrba[2*2+1];
res1 = res1+BF16TOF32(load2)*BF16TOF32(load1);
load3 = ptrbb[2*2+1];
res2 = res2+BF16TOF32(load0)*BF16TOF32(load3);
res3 = res3+BF16TOF32(load2)*BF16TOF32(load3);
load4 = ptrba[2*3+0];
load5 = ptrbb[2*3+0];
res0 = res0+BF16TOF32(load4)*BF16TOF32(load5);
load6 = ptrba[2*3+1];
res1 = res1+BF16TOF32(load6)*BF16TOF32(load5);
load7 = ptrbb[2*3+1];
res2 = res2+BF16TOF32(load4)*BF16TOF32(load7);
res3 = res3+BF16TOF32(load6)*BF16TOF32(load7);
ptrba = ptrba+8;
ptrbb = ptrbb+8;
}
for (k=0; k<(bk&3); k+=1)
{
load0 = ptrba[2*0+0];
load1 = ptrbb[2*0+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
load2 = ptrba[2*0+1];
res1 = res1+BF16TOF32(load2)*BF16TOF32(load1);
load3 = ptrbb[2*0+1];
res2 = res2+BF16TOF32(load0)*BF16TOF32(load3);
res3 = res3+BF16TOF32(load2)*BF16TOF32(load3);
ptrba = ptrba+2;
ptrbb = ptrbb+2;
}
res0 = res0*alpha;
C0[0] = C0[0]+res0;
res1 = res1*alpha;
C0[1] = C0[1]+res1;
res2 = res2*alpha;
C1[0] = C1[0]+res2;
res3 = res3*alpha;
C1[1] = C1[1]+res3;
C0 = C0+2;
C1 = C1+2;
}
for (i=0; i<(bm&1); i+=1)
{
ptrbb = bb;
res0 = 0;
res1 = 0;
for (k=0; k<bk; k+=1)
{
load0 = ptrba[0+0];
load1 = ptrbb[2*0+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
load2 = ptrbb[2*0+1];
res1 = res1+BF16TOF32(load0)*BF16TOF32(load2);
ptrba = ptrba+1;
ptrbb = ptrbb+2;
}
res0 = res0*alpha;
C0[0] = C0[0]+res0;
res1 = res1*alpha;
C1[0] = C1[0]+res1;
C0 = C0+1;
C1 = C1+1;
}
k = (bk<<1);
bb = bb+k;
i = (ldc<<1);
C = C+i;
}
for (j=0; j<(bn&1); j+=1)
{
C0 = C;
ptrba = ba;
for (i=0; i<bm/2; i+=1)
{
ptrbb = bb;
res0 = 0;
res1 = 0;
for (k=0; k<bk; k+=1)
{
load0 = ptrba[2*0+0];
load1 = ptrbb[0+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
load2 = ptrba[2*0+1];
res1 = res1+BF16TOF32(load2)*BF16TOF32(load1);
ptrba = ptrba+2;
ptrbb = ptrbb+1;
}
res0 = res0*alpha;
C0[0] = C0[0]+res0;
res1 = res1*alpha;
C0[1] = C0[1]+res1;
C0 = C0+2;
}
for (i=0; i<(bm&1); i+=1)
{
ptrbb = bb;
res0 = 0;
for (k=0; k<bk; k+=1)
{
load0 = ptrba[0+0];
load1 = ptrbb[0+0];
res0 = res0+BF16TOF32(load0)*BF16TOF32(load1);
ptrba = ptrba+1;
ptrbb = ptrbb+1;
}
res0 = res0*alpha;
C0[0] = C0[0]+res0;
C0 = C0+1;
}
k = (bk<<0);
bb = bb+k;
C = C+ldc;
}
return 0;
}