summaryrefslogtreecommitdiff
path: root/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp
diff options
context:
space:
mode:
authorMitja Felicijan <mitja.felicijan@gmail.com>2026-02-12 20:57:17 +0100
committerMitja Felicijan <mitja.felicijan@gmail.com>2026-02-12 20:57:17 +0100
commitb333b06772c89d96aacb5490d6a219fba7c09cc6 (patch)
tree211df60083a5946baa2ed61d33d8121b7e251b06 /llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/argsort_large.comp
downloadllmnpc-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.comp114
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;
+ }
+ }
+}