vbatts/llama.cpp
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Vulkan: Fix float16 use on devices without float16 support + fix subgroup_size_control validation error (#11161)

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* Vulkan: Remove float16 use in shaders

* Fix validation error about subgroup_size_control extension
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0cc4m 2025-01-10 06:39:33 +01:00 • committed by GitHub
parent ee7136c6d1
commit c3f9d25706
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9 changed files with 50 additions and 51 deletions
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10
ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q6_k.comp
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@ -1,6 +1,6 @@
#version 450
#extension GL_EXT_shader_explicit_arithmetic_types : require
#extension GL_EXT_shader_explicit_arithmetic_types_int32 : require
#include "mul_mat_vec_base.comp"
@ -77,10 +77,10 @@ void compute_outputs(const uint32_t first_row, const uint32_t num_rows) {
uvec4 q3 = uvec4(unpack8(q3_u32));
[[unroll]] for (uint j = 0; j < NUM_COLS; ++j) {
B_TYPE_VEC4 by0 = data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4];
B_TYPE_VEC4 by32 = data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 8];
B_TYPE_VEC4 by64 = data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 16];
B_TYPE_VEC4 by96 = data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 24];
vec4 by0 = vec4(data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 ]);
vec4 by32 = vec4(data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 8]);
vec4 by64 = vec4(data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 16]);
vec4 by96 = vec4(data_b_v4[(j*p.batch_stride_b + b_offset + y_idx) / 4 + 24]);
FLOAT_TYPE sum = FLOAT_TYPE(0.0);
[[unroll]] for (int l = 0; l < 4; ++l) {