Files
ollama37/llama/patches/0001-ggml-backend-malloc-and-free-using-the-same-compiler.patch
Shang Chieh Tseng ef14fb5b26 Sync with upstream ollama/ollama and restore Tesla K80 (compute 3.7) support
This commit represents a complete rework after pulling the latest changes from
official ollama/ollama repository and re-applying Tesla K80 compatibility patches.

## Key Changes

### CUDA Compute Capability 3.7 Support (Tesla K80)
- Added sm_37 (compute 3.7) to CMAKE_CUDA_ARCHITECTURES in CMakeLists.txt
- Updated CMakePresets.json to include compute 3.7 in "CUDA 11" preset
- Using 37-virtual (PTX with JIT compilation) for maximum compatibility

### Legacy Toolchain Compatibility
- **NVIDIA Driver**: 470.256.02 (last version supporting Kepler/K80)
- **CUDA Version**: 11.4.4 (last CUDA 11.x supporting compute 3.7)
- **GCC Version**: 10.5.0 (required by CUDA 11.4 host_config.h)

### CPU Architecture Trade-offs
Due to GCC 10.5 limitation, sacrificed newer CPU optimizations:
- Alderlake CPU variant enabled WITHOUT AVX_VNNI (requires GCC 11+)
- Still supports: SSE4.2, AVX, F16C, AVX2, BMI2, FMA
- Performance impact: ~3-7% on newer CPUs (acceptable for K80 compatibility)

### Build System Updates
- Modified ml/backend/ggml/ggml/src/ggml-cuda/CMakeLists.txt for compute 3.7
- Added -Wno-deprecated-gpu-targets flag to suppress warnings
- Updated ml/backend/ggml/ggml/src/CMakeLists.txt for Alderlake without AVX_VNNI

### Upstream Sync
Merged latest llama.cpp changes including:
- Enhanced KV cache management with ISWA and hybrid memory support
- Improved multi-modal support (mtmd framework)
- New model architectures (Gemma3, Llama4, Qwen3, etc.)
- GPU backend improvements for CUDA, Metal, and ROCm
- Updated quantization support and GGUF format handling

### Documentation
- Updated CLAUDE.md with comprehensive build instructions
- Documented toolchain constraints and CPU architecture trade-offs
- Removed outdated CI/CD workflows (tesla-k80-*.yml)
- Cleaned up temporary development artifacts

## Rationale

This fork maintains Tesla K80 GPU support (compute 3.7) which was dropped in
official Ollama due to legacy driver/CUDA requirements. The toolchain constraint
creates a deadlock:
- K80 → Driver 470 → CUDA 11.4 → GCC 10 → No AVX_VNNI

We accept the loss of cutting-edge CPU optimizations to enable running modern
LLMs on legacy but still capable Tesla K80 hardware (12GB VRAM per GPU).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-05 14:03:05 +08:00

206 lines
8.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: jmorganca <jmorganca@gmail.com>
Date: Thu, 6 Jun 2024 23:55:47 -0700
Subject: [PATCH] ggml-backend: malloc and free using the same compiler
On Windows, the CUDA backend must be compiled with MSVC but generic
portions compiled with CGo use either GCC or Clang. Since
ggml_backend_buffer_t spans these two components, it can be allocated
and freed using different compilers. Specifically, it is malloced by
MSVC and freed by Clang, which can cause problems.
This moves freeing of the buffers into the backends to avoid the
problem.
---
ggml/src/ggml-backend.cpp | 9 +++++++--
ggml/src/ggml-cann/ggml-cann.cpp | 2 ++
ggml/src/ggml-cuda/ggml-cuda.cu | 3 +++
ggml/src/ggml-metal/ggml-metal.cpp | 2 ++
ggml/src/ggml-opencl/ggml-opencl.cpp | 1 +
ggml/src/ggml-rpc/ggml-rpc.cpp | 1 +
ggml/src/ggml-sycl/ggml-sycl.cpp | 3 +++
ggml/src/ggml-vulkan/ggml-vulkan.cpp | 2 ++
8 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/ggml/src/ggml-backend.cpp b/ggml/src/ggml-backend.cpp
index ff9135fe..8ba86f82 100644
--- a/ggml/src/ggml-backend.cpp
+++ b/ggml/src/ggml-backend.cpp
@@ -113,7 +113,6 @@ void ggml_backend_buffer_free(ggml_backend_buffer_t buffer) {
if (buffer->iface.free_buffer != NULL) {
buffer->iface.free_buffer(buffer);
}
- delete buffer;
}
size_t ggml_backend_buffer_get_size(ggml_backend_buffer_t buffer) {
@@ -586,6 +585,7 @@ static void ggml_backend_multi_buffer_free_buffer(ggml_backend_buffer_t buffer)
free(ctx->buffers);
free(ctx);
+ delete buffer;
}
static void ggml_backend_multi_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) {
@@ -2075,6 +2075,11 @@ static void * ggml_backend_cpu_buffer_get_base(ggml_backend_buffer_t buffer) {
static void ggml_backend_cpu_buffer_free_buffer(ggml_backend_buffer_t buffer) {
GGML_ASSERT(buffer);
ggml_aligned_free(buffer->context, buffer->size);
+ delete buffer;
+}
+
+static void ggml_backend_cpu_ptr_buffer_free_buffer(ggml_backend_buffer_t buffer) {
+ delete buffer;
}
static void ggml_backend_cpu_buffer_memset_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, uint8_t value, size_t offset, size_t size) {
@@ -2127,7 +2132,7 @@ static const struct ggml_backend_buffer_i ggml_backend_cpu_buffer_i = {
};
static const struct ggml_backend_buffer_i ggml_backend_cpu_buffer_from_ptr_i = {
- /* .free_buffer = */ NULL, // ptr is not owned by the buffer, so it does not need to be freed
+ /* .free_buffer = */ ggml_backend_cpu_ptr_buffer_free_buffer, // ptr is not owned by the buffer but need to free the buffer itself
/* .get_base = */ ggml_backend_cpu_buffer_get_base,
/* .init_tensor = */ NULL, // no initialization required
/* .memset_tensor = */ ggml_backend_cpu_buffer_memset_tensor,
diff --git a/ggml/src/ggml-cann/ggml-cann.cpp b/ggml/src/ggml-cann/ggml-cann.cpp
index ad1adba6..7d44f74f 100755
--- a/ggml/src/ggml-cann/ggml-cann.cpp
+++ b/ggml/src/ggml-cann/ggml-cann.cpp
@@ -843,6 +843,7 @@ static void ggml_backend_cann_buffer_free_buffer(
ggml_backend_cann_buffer_context* ctx =
(ggml_backend_cann_buffer_context*)buffer->context;
delete ctx;
+ delete buffer;
}
/**
@@ -1630,6 +1631,7 @@ static const char * ggml_backend_cann_host_buffer_name(ggml_backend_buffer_t buf
*/
static void ggml_backend_cann_host_buffer_free(ggml_backend_buffer_t buffer) {
ACL_CHECK(aclrtFreeHost(buffer->context));
+ delete buffer;
}
/**
diff --git a/ggml/src/ggml-cuda/ggml-cuda.cu b/ggml/src/ggml-cuda/ggml-cuda.cu
index 856e9de2..c0b1e4c1 100644
--- a/ggml/src/ggml-cuda/ggml-cuda.cu
+++ b/ggml/src/ggml-cuda/ggml-cuda.cu
@@ -567,6 +567,7 @@ struct ggml_backend_cuda_buffer_context {
static void ggml_backend_cuda_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_backend_cuda_buffer_context * ctx = (ggml_backend_cuda_buffer_context *)buffer->context;
delete ctx;
+ delete buffer;
}
static bool ggml_backend_buffer_is_cuda(ggml_backend_buffer_t buffer) {
@@ -822,6 +823,7 @@ struct ggml_backend_cuda_split_buffer_context {
static void ggml_backend_cuda_split_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_backend_cuda_split_buffer_context * ctx = (ggml_backend_cuda_split_buffer_context *)buffer->context;
delete ctx;
+ delete buffer;
}
static void * ggml_backend_cuda_split_buffer_get_base(ggml_backend_buffer_t buffer) {
@@ -1103,6 +1105,7 @@ static bool ggml_backend_buft_is_cuda_host(ggml_backend_buffer_type_t buft) {
static void ggml_backend_cuda_host_buffer_free_buffer(ggml_backend_buffer_t buffer) {
CUDA_CHECK(cudaFreeHost(buffer->context));
+ delete buffer;
}
static void * ggml_cuda_host_malloc(size_t size) {
diff --git a/ggml/src/ggml-metal/ggml-metal.cpp b/ggml/src/ggml-metal/ggml-metal.cpp
index 7afc881f..bf096227 100644
--- a/ggml/src/ggml-metal/ggml-metal.cpp
+++ b/ggml/src/ggml-metal/ggml-metal.cpp
@@ -25,6 +25,7 @@ static void ggml_backend_metal_buffer_shared_free_buffer(ggml_backend_buffer_t b
GGML_ASSERT(ggml_metal_buffer_is_shared(ctx));
ggml_metal_buffer_free(ctx);
+ delete buffer;
}
static void * ggml_backend_metal_buffer_shared_get_base(ggml_backend_buffer_t buffer) {
@@ -99,6 +100,7 @@ static void ggml_backend_metal_buffer_private_free_buffer(ggml_backend_buffer_t
GGML_ASSERT(!ggml_metal_buffer_is_shared(ctx));
ggml_metal_buffer_free(ctx);
+ delete buffer;
}
static void * ggml_backend_metal_buffer_private_get_base(ggml_backend_buffer_t buffer) {
diff --git a/ggml/src/ggml-opencl/ggml-opencl.cpp b/ggml/src/ggml-opencl/ggml-opencl.cpp
index 79d21487..38c75018 100644
--- a/ggml/src/ggml-opencl/ggml-opencl.cpp
+++ b/ggml/src/ggml-opencl/ggml-opencl.cpp
@@ -3212,6 +3212,7 @@ struct ggml_backend_opencl_buffer_context {
static void ggml_backend_opencl_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_backend_opencl_buffer_context * ctx = (ggml_backend_opencl_buffer_context *) buffer->context;
delete ctx;
+ delete buffer;
}
static void * ggml_backend_opencl_buffer_get_base(ggml_backend_buffer_t buffer) {
diff --git a/ggml/src/ggml-rpc/ggml-rpc.cpp b/ggml/src/ggml-rpc/ggml-rpc.cpp
index aad48d62..a46c0f52 100644
--- a/ggml/src/ggml-rpc/ggml-rpc.cpp
+++ b/ggml/src/ggml-rpc/ggml-rpc.cpp
@@ -528,6 +528,7 @@ static void ggml_backend_rpc_buffer_free_buffer(ggml_backend_buffer_t buffer) {
bool status = send_rpc_cmd(ctx->sock, RPC_CMD_FREE_BUFFER, &request, sizeof(request), nullptr, 0);
RPC_STATUS_ASSERT(status);
delete ctx;
+ delete buffer;
}
static void * ggml_backend_rpc_buffer_get_base(ggml_backend_buffer_t buffer) {
diff --git a/ggml/src/ggml-sycl/ggml-sycl.cpp b/ggml/src/ggml-sycl/ggml-sycl.cpp
index 45b8c216..4ec9a592 100644
--- a/ggml/src/ggml-sycl/ggml-sycl.cpp
+++ b/ggml/src/ggml-sycl/ggml-sycl.cpp
@@ -334,6 +334,7 @@ ggml_backend_sycl_buffer_free_buffer(ggml_backend_buffer_t buffer) try {
ggml_sycl_set_device(ctx->device);
delete ctx;
+ delete buffer;
}
catch (sycl::exception const &exc) {
std::cerr << exc.what() << "Exception caught at file:" << __FILE__
@@ -795,6 +796,7 @@ struct ggml_backend_sycl_split_buffer_context {
static void ggml_backend_sycl_split_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_backend_sycl_split_buffer_context * ctx = (ggml_backend_sycl_split_buffer_context *)buffer->context;
delete ctx;
+ delete buffer;
}
static void * ggml_backend_sycl_split_buffer_get_base(ggml_backend_buffer_t buffer) {
@@ -1137,6 +1139,7 @@ static const char * ggml_backend_sycl_host_buffer_type_name(ggml_backend_buffer_
static void ggml_backend_sycl_host_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_sycl_host_free(buffer->context);
+ delete buffer;
}
static ggml_backend_buffer_t ggml_backend_sycl_host_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) {
diff --git a/ggml/src/ggml-vulkan/ggml-vulkan.cpp b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
index 3cd89c71..ed83236f 100644
--- a/ggml/src/ggml-vulkan/ggml-vulkan.cpp
+++ b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
@@ -11600,6 +11600,7 @@ static void ggml_backend_vk_buffer_free_buffer(ggml_backend_buffer_t buffer) {
ggml_backend_vk_buffer_context * ctx = (ggml_backend_vk_buffer_context *)buffer->context;
ggml_vk_destroy_buffer(ctx->dev_buffer);
delete ctx;
+ delete buffer;
}
static void * ggml_backend_vk_buffer_get_base(ggml_backend_buffer_t buffer) {
@@ -11743,6 +11744,7 @@ static const char * ggml_backend_vk_host_buffer_name(ggml_backend_buffer_t buffe
static void ggml_backend_vk_host_buffer_free_buffer(ggml_backend_buffer_t buffer) {
VK_LOG_MEMORY("ggml_backend_vk_host_buffer_free_buffer()");
ggml_vk_host_free(vk_instance.devices[0], buffer->context);
+ delete buffer;
}
static ggml_backend_buffer_t ggml_backend_vk_host_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) {