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| author | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
|---|---|---|
| committer | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
| commit | b333b06772c89d96aacb5490d6a219fba7c09cc6 (patch) | |
| tree | 211df60083a5946baa2ed61d33d8121b7e251b06 /llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp | |
| download | llmnpc-b333b06772c89d96aacb5490d6a219fba7c09cc6.tar.gz | |
Engage!
Diffstat (limited to 'llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp')
| -rw-r--r-- | llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp new file mode 100644 index 0000000..920bac6 --- /dev/null +++ b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp @@ -0,0 +1,114 @@ +#version 450 +#extension GL_EXT_control_flow_attributes : enable +#extension GL_KHR_memory_scope_semantics : enable +#pragma use_vulkan_memory_model + +#include "types.glsl" + +layout(constant_id = 0) const int BLOCK_SIZE = 1024; +layout(constant_id = 1) const int WG_UNROLL_FACTOR = 2; +#define ASC 0 + +layout(local_size_x_id = 0, local_size_y = 1, local_size_z = 1) in; + +layout (binding = 0) readonly buffer A {A_TYPE data_a[];}; +layout (binding = 1) workgroupcoherent buffer B {ivec2 tmp_idx[];}; +layout (binding = 2) workgroupcoherent buffer D {int data_d[];}; + +layout (push_constant) uniform parameter { + uint ncols; + uint ncols_padded; + uint ncols_padded_log2; + uint nrows; + uint order; + uint outer_start; + uint outer_end; + uint inner_start; + uint inner_end; +} p; + +void argsort(bool needs_bounds_check, const uint row) { + // bitonic sort + int col = int(gl_GlobalInvocationID.x); + col = (col % BLOCK_SIZE) + (col / BLOCK_SIZE) * BLOCK_SIZE * WG_UNROLL_FACTOR; + + const uint row_offset = row * p.ncols; + uint idx_offset = row * p.ncols_padded; + + bool need_barrier = false; + + // initialize indices + if (p.outer_start == 0 && p.inner_start == 0) { + [[unroll]] for (int u = 0; u < WG_UNROLL_FACTOR; ++u) { + uint c = u*BLOCK_SIZE + col; + if (c < p.ncols_padded) { + ivec2 v = ivec2(c, floatBitsToInt(data_a[row_offset + c])); + tmp_idx[idx_offset + c] = v; + } + } + need_barrier = true; + } + + [[unroll]] for (uint outer_idx = p.outer_start, k = (2 << outer_idx); outer_idx < p.outer_end; k *= 2, outer_idx++) { + uint inner_end = min(p.inner_end, outer_idx + 1); + for (uint j = k >> (p.inner_start + 1), inner_idx = p.inner_start; inner_idx < inner_end; j /= 2, inner_idx++) { + if (need_barrier) { + controlBarrier(gl_ScopeWorkgroup, gl_ScopeWorkgroup, gl_StorageSemanticsBuffer, gl_SemanticsAcquireRelease); + } + need_barrier = true; + [[unroll]] for (int u = 0; u < WG_UNROLL_FACTOR; ++u) { + int c = u*BLOCK_SIZE + col; + const int ixj = int(c ^ j); + + if (ixj < c) { + continue; + } + + int idx_0 = (c & k) == 0 ? c : ixj; + int idx_1 = (c & k) == 0 ? ixj : c; + + ivec2 sh_idx_0 = tmp_idx[idx_offset + idx_0]; + ivec2 sh_idx_1 = tmp_idx[idx_offset + idx_1]; + bool idx_0_oob = needs_bounds_check ? sh_idx_0.x >= p.ncols : false; + bool idx_1_oob = needs_bounds_check ? sh_idx_1.x >= p.ncols : false; + + if ((idx_0_oob || + (!idx_1_oob && intBitsToFloat(sh_idx_0.y) > intBitsToFloat(sh_idx_1.y)))) { + tmp_idx[idx_offset + idx_0] = sh_idx_1; + tmp_idx[idx_offset + idx_1] = sh_idx_0; + } + } + } + } + + if (p.outer_end == p.ncols_padded_log2 && + p.inner_end >= p.ncols_padded_log2 + 1) { + controlBarrier(gl_ScopeWorkgroup, gl_ScopeWorkgroup, gl_StorageSemanticsBuffer, gl_SemanticsAcquireRelease); + [[unroll]] for (int u = 0; u < WG_UNROLL_FACTOR; ++u) { + uint c = u*BLOCK_SIZE + col; + if (c < p.ncols) { + if (p.order == ASC) { + data_d[row_offset + c] = tmp_idx[idx_offset + c].x; + } else { + data_d[row_offset + p.ncols - c - 1] = tmp_idx[idx_offset + c].x; + } + } + } + } +} + +void main() { + if (p.ncols == p.ncols_padded) { + uint row = gl_WorkGroupID.y; + while (row < p.nrows) { + argsort(false, row); + row += gl_WorkGroupSize.y * gl_NumWorkGroups.y; + } + } else { + uint row = gl_WorkGroupID.y; + while (row < p.nrows) { + argsort(true, row); + row += gl_WorkGroupSize.y * gl_NumWorkGroups.y; + } + } +} |
