ollama/llama/patches/0033-vulkan-Handle-argsort-...

86 lines
2.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeff Bolz <jbolz@nvidia.com>
Date: Thu, 30 Oct 2025 01:27:41 -0500
Subject: [PATCH] vulkan: Handle argsort with a large number of rows (#16851)
---
ggml/src/ggml-vulkan/ggml-vulkan.cpp | 4 ++++
ggml/src/ggml-vulkan/vulkan-shaders/argsort.comp | 16 ++++++++++++----
2 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/ggml/src/ggml-vulkan/ggml-vulkan.cpp b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
index aaf4334b5..3604ceb04 100644
--- a/ggml/src/ggml-vulkan/ggml-vulkan.cpp
+++ b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
@@ -1084,6 +1084,7 @@ struct vk_op_soft_max_push_constants {
struct vk_op_argsort_push_constants {
uint32_t ncols;
+ uint32_t nrows;
int32_t order;
};
@@ -8710,6 +8711,7 @@ static void ggml_vk_op_f32(ggml_backend_vk_context * ctx, vk_context& subctx, co
break;
case GGML_OP_ARGSORT:
elements = { (uint32_t)ne00, (uint32_t)ggml_nrows(src0), 1 };
+ elements[1] = std::min(elements[1], ctx->device->properties.limits.maxComputeWorkGroupCount[1]);
break;
case GGML_OP_IM2COL:
{
@@ -9952,9 +9954,11 @@ static void ggml_vk_argsort(ggml_backend_vk_context * ctx, vk_context& subctx, c
int32_t * op_params = (int32_t *)dst->op_params;
uint32_t ncols = src0->ne[0];
+ uint32_t nrows = ggml_nrows(src0);
ggml_vk_op_f32<vk_op_argsort_push_constants>(ctx, subctx, src0, nullptr, nullptr, nullptr, dst, GGML_OP_ARGSORT, {
ncols,
+ nrows,
op_params[0],
}, dryrun);
}
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/argsort.comp b/ggml/src/ggml-vulkan/vulkan-shaders/argsort.comp
index c81b84452..c4e68bc02 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/argsort.comp
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/argsort.comp
@@ -14,6 +14,7 @@ layout (binding = 1) buffer D {int data_d[];};
layout (push_constant) uniform parameter {
uint ncols;
+ uint nrows;
uint order;
} p;
@@ -26,10 +27,9 @@ void swap(uint idx0, uint idx1) {
dst_row[idx1] = tmp;
}
-void argsort(bool needs_bounds_check) {
+void argsort(bool needs_bounds_check, const uint row) {
// bitonic sort
const int col = int(gl_LocalInvocationID.x);
- const uint row = gl_WorkGroupID.y;
const uint row_offset = row * p.ncols;
@@ -72,8 +72,16 @@ void argsort(bool needs_bounds_check) {
void main() {
if (p.ncols == BLOCK_SIZE) {
- argsort(false);
+ uint row = gl_WorkGroupID.y;
+ while (row < p.nrows) {
+ argsort(false, row);
+ row += gl_WorkGroupSize.y * gl_NumWorkGroups.y;
+ }
} else {
- argsort(true);
+ uint row = gl_WorkGroupID.y;
+ while (row < p.nrows) {
+ argsort(true, row);
+ row += gl_WorkGroupSize.y * gl_NumWorkGroups.y;
+ }
}
}