mirror of
https://github.com/ggml-org/llama.cpp.git
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e29acf74fe
* vulkan (DRAFT): split shader generation by GLSL source file, to improve incremental build times * support dep-files so shaders are recompiled if their included files change * rename shader files which are used as "headers" to use .glsl extension * move glslc extension detection shaders to separate folders * the above is to prevent them from getting glob'd with the actual compute shaders that need to be compiled * vulkan : only write embedded shader .hpp/.cpp when they change * avoid recompiling ggml-vulkan.cpp when editing shaders * pass single --source argument instead of --input-dir & --filter to shader gen * check for source file match earlier * fix hang in vulkan-shaders-gen when there are compilation errors * early out did not decrement compile_count * clean up * fix glslc integer dot product test * unconditionally write the embedded shader cpp output * replace output filepath in generated dep-files to match output in CMakeLists --------- Co-authored-by: Jeff Bolz <jbolz@nvidia.com>
31 lines
861 B
Plaintext
31 lines
861 B
Plaintext
#version 450
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#include "dequant_head.glsl"
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layout(local_size_x = 256, local_size_y = 1, local_size_z = 1) in;
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layout (binding = 0) readonly buffer A {block_q4_0 data_a[];};
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layout (binding = 1) writeonly buffer D {D_TYPE data_b[];};
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void main() {
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const uint i = gl_WorkGroupID.x * 4 + gl_LocalInvocationID.x / 64;
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const uint tid = gl_LocalInvocationID.x % 64;
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const uint il = tid/32;
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const uint ir = tid%32;
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const uint ib = 32*i + ir;
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if (ib >= p.nel / 32) {
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return;
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}
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const uint q_idx = 8*il;
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const uint b_idx = 1024*i + 32*ir + q_idx;
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const float d = float(data_a[ib].d);
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[[unroll]] for (uint l = 0; l < 8; ++l) {
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data_b[b_idx + l + 0] = D_TYPE(d * ((data_a[ib].qs[q_idx + l] & 0xF) - 8.0f));
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data_b[b_idx + l + 16] = D_TYPE(d * ((data_a[ib].qs[q_idx + l] >> 4) - 8.0f));
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}
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}
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