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#pragma OPENCL EXTENSION cl_khr_fp16 : enable
#ifdef cl_intel_subgroups
#pragma OPENCL EXTENSION cl_intel_subgroups : enable
#else
#pragma OPENCL EXTENSION cl_khr_subgroups : enable
#endif
#ifdef cl_intel_required_subgroup_size
#pragma OPENCL EXTENSION cl_intel_required_subgroup_size : enable
#define INTEL_GPU 1
#define REQD_SUBGROUP_SIZE_16 __attribute__((intel_reqd_sub_group_size(16)))
#define REQD_SUBGROUP_SIZE_32 __attribute__((intel_reqd_sub_group_size(32)))
#elif defined(cl_qcom_reqd_sub_group_size)
#pragma OPENCL EXTENSION cl_qcom_reqd_sub_group_size : enable
#define ADRENO_GPU 1
#define REQD_SUBGROUP_SIZE_64 __attribute__((qcom_reqd_sub_group_size("half")))
#define REQD_SUBGROUP_SIZE_128 __attribute__((qcom_reqd_sub_group_size("full")))
#endif
#define QK8_0 32
typedef struct {
half d; // delta
char qs[QK8_0]; // quants
} block_q8_0;
#define NB_Q8_0 8
#ifdef INTEL_GPU
#define N_R0_Q8_0 4 // number of rows each subgroup works on
#define N_SG_Q8_0 2 // number of subgroups in a work group
#define N_SIMDWIDTH 16 // subgroup size
#elif defined (ADRENO_GPU)
#define N_R0_Q8_0 4
#define N_SG_Q8_0 2
#define N_SIMDWIDTH 64
#endif
#ifdef INTEL_GPU
REQD_SUBGROUP_SIZE_16
#elif defined (ADRENO_GPU)
REQD_SUBGROUP_SIZE_64
#endif
kernel void kernel_mul_mv_q8_0_f32_flat(
global char * src0_q,
global half * src0_d,
global char * src1,
ulong offset1,
global char * dst,
ulong offsetd,
int ne00,
int ne01,
ulong nb01,
ulong nb02,
ulong nb03,
int ne12,
ulong nb11,
ulong nb12,
ulong nb13,
int ne0,
int ne1,
int r2,
int r3
) {
src1 = (global char*)((global char*)src1 + offset1);
dst = (global char*)((global char*)dst + offsetd);
int nb = ne00/QK8_0;
int r0 = get_group_id(0);
int r1 = get_group_id(1);
int im = get_group_id(2);
int first_row = (r0*N_SG_Q8_0 + get_sub_group_id()) * N_R0_Q8_0;
uint i12 = im%ne12;
uint i13 = im/ne12;
ulong offset_src1 = r1*nb11 + i12*nb12 + i13*nb13;
global float * y = (global float *) (src1 + offset_src1);
// pointers to src0 rows
uint offset_src0_base = first_row*nb01 + (i12/r2)*nb02 + (i13/r3)*nb03;
global char * ax0, * ax1, * ax2, * ax3;
global half * ad0, * ad1, * ad2, * ad3;
uint offset_src0;
offset_src0 = offset_src0_base + 0*nb01;
offset_src0 = offset_src0/34;
ax0 = (global char *) ((global char *) src0_q + offset_src0*sizeof(char)*QK8_0);
ad0 = (global half *) ((global char *) src0_d + offset_src0*sizeof(half));
offset_src0 = offset_src0_base + 1*nb01;
offset_src0 = offset_src0/34;
ax1 = (global char *) ((global char *) src0_q + offset_src0*sizeof(char)*QK8_0);
ad1 = (global half *) ((global char *) src0_d + offset_src0*sizeof(half));
offset_src0 = offset_src0_base + 2*nb01;
offset_src0 = offset_src0/34;
ax2 = (global char *) ((global char *) src0_q + offset_src0*sizeof(char)*QK8_0);
ad2 = (global half *) ((global char *) src0_d + offset_src0*sizeof(half));
offset_src0 = offset_src0_base + 3*nb01;
offset_src0 = offset_src0/34;
ax3 = (global char *) ((global char *) src0_q + offset_src0*sizeof(char)*QK8_0);
ad3 = (global half *) ((global char *) src0_d + offset_src0*sizeof(half));
const short ix = get_sub_group_local_id()/4;
const short il = get_sub_group_local_id()%4;
global float * yb = y + ix*QK8_0 + il*NB_Q8_0;
float8 yl;
float8 qv;
float4 sumf = 0.f;
float sumq = 0.f;
global char * qs;
// each thread handles NB_Q8_0 quants at a time
for (int ib = ix; ib < nb; ib += N_SIMDWIDTH/4) {
yl = vload8(0, yb);
qs = ax0 + ib*sizeof(char)*QK8_0 + il*NB_Q8_0;
qv = convert_float8(vload8(0, qs));
sumq = 0;
sumq += qv.s0*yl.s0;
sumq += qv.s1*yl.s1;
sumq += qv.s2*yl.s2;
sumq += qv.s3*yl.s3;
sumq += qv.s4*yl.s4;
sumq += qv.s5*yl.s5;
sumq += qv.s6*yl.s6;
sumq += qv.s7*yl.s7;
sumf.s0 += sumq*ad0[ib];
qs = ax1 + ib*sizeof(char)*QK8_0 + il*NB_Q8_0;
qv = convert_float8(vload8(0, qs));
sumq = 0;
sumq += qv.s0*yl.s0;
sumq += qv.s1*yl.s1;
sumq += qv.s2*yl.s2;
sumq += qv.s3*yl.s3;
sumq += qv.s4*yl.s4;
sumq += qv.s5*yl.s5;
sumq += qv.s6*yl.s6;
sumq += qv.s7*yl.s7;
sumf.s1 += sumq*ad1[ib];
qs = ax2 + ib*sizeof(char)*QK8_0 + il*NB_Q8_0;
qv = convert_float8(vload8(0, qs));
sumq = 0;
sumq += qv.s0*yl.s0;
sumq += qv.s1*yl.s1;
sumq += qv.s2*yl.s2;
sumq += qv.s3*yl.s3;
sumq += qv.s4*yl.s4;
sumq += qv.s5*yl.s5;
sumq += qv.s6*yl.s6;
sumq += qv.s7*yl.s7;
sumf.s2 += sumq*ad2[ib];
qs = ax3 + ib*sizeof(char)*QK8_0 + il*NB_Q8_0;
qv = convert_float8(vload8(0, qs));
sumq = 0;
sumq += qv.s0*yl.s0;
sumq += qv.s1*yl.s1;
sumq += qv.s2*yl.s2;
sumq += qv.s3*yl.s3;
sumq += qv.s4*yl.s4;
sumq += qv.s5*yl.s5;
sumq += qv.s6*yl.s6;
sumq += qv.s7*yl.s7;
sumf.s3 += sumq*ad3[ib];
yb += N_SIMDWIDTH*NB_Q8_0;
}
global float * dst_f32 = (global float *) dst + (ulong)im*ne0*ne1 + (ulong)r1*ne0;
float4 tot = (float4)(
sub_group_reduce_add(sumf.s0),
sub_group_reduce_add(sumf.s1),
sub_group_reduce_add(sumf.s2),
sub_group_reduce_add(sumf.s3)
);
if (get_sub_group_local_id() == 0) {
if (first_row + 0 < ne01) {
dst_f32[first_row + 0] = tot.s0;
}
if (first_row + 1 < ne01) {
dst_f32[first_row + 1] = tot.s1;
}
if (first_row + 2 < ne01) {
dst_f32[first_row + 2] = tot.s2;
}
if (first_row + 3 < ne01) {
dst_f32[first_row + 3] = tot.s3;
}
}
}
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