File size: 1,184 Bytes
2517be1 | 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 | #version 450
#extension GL_EXT_control_flow_attributes : enable
#include "types.glsl"
layout (push_constant) uniform parameter
{
uint32_t ne00;
uint32_t ne01;
uint32_t nb00;
uint32_t nb01;
uint32_t a_offset;
} p;
#define BLOCK_SIZE 256
layout(local_size_x = BLOCK_SIZE, local_size_y = 1, local_size_z = 1) in;
layout (binding = 0) readonly buffer A {uint data_a[];};
layout (binding = 1) writeonly buffer D {uint data_d[];};
shared uint vals[BLOCK_SIZE];
void main() {
const uint expert_id = gl_WorkGroupID.x;
const uint num_elements = p.ne00 * p.ne01;
const uint tid = gl_LocalInvocationID.x;
uint count = 0;
for (uint idx = tid; idx < num_elements; idx += BLOCK_SIZE) {
const uint i01 = idx / p.ne00;
const uint i00 = idx % p.ne00;
const uint a = data_a[p.a_offset + i01 * p.nb01 + i00 * p.nb00];
count += uint(a == expert_id);
}
vals[tid] = count;
barrier();
[[unroll]] for (uint s = BLOCK_SIZE / 2; s > 0; s >>= 1) {
if (tid < s) {
vals[tid] += vals[tid + s];
}
barrier();
}
if (tid == 0) {
data_d[expert_id] = vals[0];
}
}
|