vbatts/llama.cpp
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ggml : add support for dynamic loading of backends (#10469)

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* ggml : add support for dynamic loading of backends

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
This commit is contained in:
Diego Devesa 2024-11-25 15:13:39 +01:00 • committed by GitHub
parent f6d12e7df8
commit 5931c1f233
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GPG key ID: B5690EEEBB952194
44 changed files with 728 additions and 272 deletions
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26
tests/test-backend-ops.cpp
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@ -16,7 +16,6 @@
#include <ggml.h>
#include <ggml-cpu.h>
#include <ggml-alloc.h>
#include <ggml-backend.h>
@ -26,7 +25,6 @@
#include <cstdint>
#include <cstring>
#include <cinttypes>
#include <functional>
#include <memory>
#include <random>
#include <stdio.h>
@ -639,19 +637,20 @@ struct test_case {
// determine number of runs
int n_runs;
bool is_cpu = ggml_backend_dev_type(ggml_backend_get_device(backend)) == GGML_BACKEND_DEVICE_TYPE_CPU;
if (op_flops(out) > 0) {
// based on flops
const uint64_t GFLOP = 1000 * 1000 * 1000;
const uint64_t target_flops_cpu = 8ULL * GFLOP;
const uint64_t target_flops_gpu = 100ULL * GFLOP;
uint64_t target_flops = ggml_backend_is_cpu(backend) ? target_flops_cpu : target_flops_gpu;
uint64_t target_flops = is_cpu ? target_flops_cpu : target_flops_gpu;
n_runs = std::min<int>(ggml_graph_size(gf) - ggml_graph_n_nodes(gf), target_flops / op_flops(out)) + 1;
} else {
// based on memory size
const size_t GB = 1ULL << 30;
const size_t target_size_cpu = 8 * GB;
const size_t target_size_gpu = 32 * GB;
size_t target_size = ggml_backend_is_cpu(backend) ? target_size_cpu : target_size_gpu;
size_t target_size = is_cpu ? target_size_cpu : target_size_gpu;
n_runs = std::min<int>(ggml_graph_size(gf) - ggml_graph_n_nodes(gf), target_size / op_size(out)) + 1;
}
@ -3873,7 +3872,11 @@ static std::vector<std::unique_ptr<test_case>> make_test_cases_perf() {
static bool test_backend(ggml_backend_t backend, test_mode mode, const char * op_name) {
if (mode == MODE_TEST) {
auto test_cases = make_test_cases_eval();
ggml_backend_t backend_cpu = ggml_backend_cpu_init();
ggml_backend_t backend_cpu = ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_CPU, NULL);
if (backend_cpu == NULL) {
printf(" Failed to initialize CPU backend\n");
return false;
}
size_t n_ok = 0;
for (auto & test : test_cases) {
@ -3953,7 +3956,9 @@ int main(int argc, char ** argv) {
}
}
// enumerate backends
// load and enumerate backends
ggml_backend_load_all();
printf("Testing %zu devices\n\n", ggml_backend_dev_count());
size_t n_ok = 0;
@ -3969,16 +3974,15 @@ int main(int argc, char ** argv) {
continue;
}
ggml_backend_t backend = ggml_backend_dev_init(dev, NULL);
GGML_ASSERT(backend != NULL);
if (backend_filter == NULL && ggml_backend_is_cpu(backend) && mode != MODE_GRAD) {
if (backend_filter == NULL && ggml_backend_dev_type(dev) == GGML_BACKEND_DEVICE_TYPE_CPU && mode != MODE_GRAD) {
printf(" Skipping CPU backend\n");
ggml_backend_free(backend);
n_ok++;
continue;
}
ggml_backend_t backend = ggml_backend_dev_init(dev, NULL);
GGML_ASSERT(backend != NULL);
ggml_backend_reg_t reg = ggml_backend_dev_backend_reg(dev);
auto ggml_backend_set_n_threads_fn = (ggml_backend_set_n_threads_t) ggml_backend_reg_get_proc_address(reg, "ggml_backend_set_n_threads");
if (ggml_backend_set_n_threads_fn) {