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llama : refactor model loader with backend registry (#10026)

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Diego Devesa 2024-10-30 02:01:23 +01:00 • committed by GitHub
parent 8f275a7c45
commit c5b0f4b5d9
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18 changed files with 1903 additions and 2019 deletions
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19
ggml/include/ggml-backend.h
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@ -114,11 +114,12 @@ extern "C" {
//
enum ggml_backend_dev_type {
// CPU device using system memory
GGML_BACKEND_DEVICE_TYPE_CPU,
// GPU device using dedicated memory
GGML_BACKEND_DEVICE_TYPE_GPU,
// devices with full capabilities (excludes backends such as BLAS that only support matrix multiplication)
GGML_BACKEND_DEVICE_TYPE_CPU_FULL,
GGML_BACKEND_DEVICE_TYPE_GPU_FULL
// accelerator devices intended to be used together with the CPU backend (e.g. BLAS or AMX)
GGML_BACKEND_DEVICE_TYPE_ACCEL
};
// functionality supported by the device
@ -167,10 +168,14 @@ extern "C" {
GGML_API ggml_backend_dev_t ggml_backend_reg_dev_get(ggml_backend_reg_t reg, size_t index);
GGML_API void * ggml_backend_reg_get_proc_address(ggml_backend_reg_t reg, const char * name);
// Common functions that may be obtained using ggml_backend_reg_get_proc_address
// Functions that may be obtained using ggml_backend_reg_get_proc_address
typedef ggml_backend_buffer_type_t (*ggml_backend_split_buffer_type_t)(const float *);
typedef void (*ggml_backend_set_n_threads_t)(ggml_backend_t, int);
// Split buffer type for tensor parallelism
typedef ggml_backend_buffer_type_t (*ggml_backend_split_buffer_type_t)(int main_device, const float * tensor_split);
// Set the number of threads for the backend
typedef void (*ggml_backend_set_n_threads_t)(ggml_backend_t backend, int n_threads);
// Get additional buffer types provided by the device (returns a NULL-terminated array)
typedef ggml_backend_buffer_type_t * (*ggml_backend_dev_get_extra_bufts_t)(ggml_backend_dev_t device);
//
// Backend registry
@ -192,7 +197,7 @@ extern "C" {
GGML_API ggml_backend_t ggml_backend_init_by_name(const char * name, const char * params);
// = ggml_backend_dev_init(ggml_backend_dev_by_type(type), params)
GGML_API ggml_backend_t ggml_backend_init_by_type(enum ggml_backend_dev_type type, const char * params);
// = ggml_backend_dev_init(ggml_backend_dev_by_type(GPU_FULL) OR ggml_backend_dev_by_type(CPU_FULL), NULL)
// = ggml_backend_dev_init(ggml_backend_dev_by_type(GPU) OR ggml_backend_dev_by_type(CPU), NULL)
GGML_API ggml_backend_t ggml_backend_init_best(void);
//