mirror of
https://github.com/ggml-org/llama.cpp.git
synced 2025-11-03 09:22:01 +00:00
7c7836d9d4
* Refactor shaders, extract GLSL code from ggml_vk_generate_shaders.py into vulkan-shaders directory * Improve debug log code * Add memory debug output option * Fix flake8 * Fix unnecessary high llama-3 VRAM use
57 lines
2.0 KiB
Plaintext
57 lines
2.0 KiB
Plaintext
#version 450
|
|
|
|
#include "dequant_head.comp"
|
|
|
|
layout(local_size_x = 32, local_size_y = 1, local_size_z = 1) in;
|
|
|
|
layout (binding = 0) readonly buffer A {A_TYPE data_a[];};
|
|
layout (binding = 1) writeonly buffer D {D_TYPE data_b[];};
|
|
|
|
void main() {
|
|
[[unroll]] for (uint wgy = 0; wgy < 256; wgy++) {
|
|
const uint i = gl_WorkGroupID.x * 256 + wgy;
|
|
if (i >= p.M * p.K / QUANT_K) {
|
|
return;
|
|
}
|
|
|
|
const uint tid = gl_LocalInvocationID.x;
|
|
const uint il = tid / 8;
|
|
const uint ir = tid % 8;
|
|
const uint is = 2 * il;
|
|
const uint n = 4;
|
|
|
|
const FLOAT_TYPE dall = FLOAT_TYPE(data_a[i].d.x);
|
|
const FLOAT_TYPE dmin = FLOAT_TYPE(data_a[i].d.y);
|
|
|
|
const uint y_idx = i * QUANT_K + 64 * il + n * ir;
|
|
const uint qs_idx = 32*il + n * ir;
|
|
|
|
uint8_t sc;
|
|
uint8_t m;
|
|
if (is < 4) {
|
|
sc = uint8_t(data_a[i].scales[is] & 63);
|
|
m = uint8_t(data_a[i].scales[is + 4] & 63);
|
|
} else {
|
|
sc = uint8_t((data_a[i].scales[is + 4] & 0xF) | ((data_a[i].scales[is - 4] >> 6) << 4));
|
|
m = uint8_t((data_a[i].scales[is + 4] >> 4) | ((data_a[i].scales[is ] >> 6) << 4));
|
|
}
|
|
const FLOAT_TYPE d1 = dall * sc;
|
|
const FLOAT_TYPE m1 = dmin * m;
|
|
|
|
if (is < 4) {
|
|
sc = uint8_t(data_a[i].scales[is + 1] & 63);
|
|
m = uint8_t(data_a[i].scales[is + 5] & 63);
|
|
} else {
|
|
sc = uint8_t((data_a[i].scales[is + 5] & 0xF) | ((data_a[i].scales[is - 3] >> 6) << 4));
|
|
m = uint8_t((data_a[i].scales[is + 5] >> 4) | ((data_a[i].scales[is + 1] >> 6) << 4));
|
|
}
|
|
const FLOAT_TYPE d2 = dall * sc;
|
|
const FLOAT_TYPE m2 = dmin * m;
|
|
|
|
[[unroll]] for (uint l = 0; l < n; ++l) {
|
|
data_b[y_idx + l ] = D_TYPE(d1 * FLOAT_TYPE(data_a[i].qs[qs_idx + l] & 0xF) - m1);
|
|
data_b[y_idx + l + 32] = D_TYPE(d2 * FLOAT_TYPE(data_a[i].qs[qs_idx + l] >> 4) - m2);
|
|
}
|
|
}
|
|
}
|