Class ggml_init_params

tests/test_metal_profile.cpp:25–25

                        int warmup = 2, int repeats = 5) {
    size_t ctx_size = ggml_tensor_overhead() * 64 + ggml_graph_overhead();
    struct ggml_init_params params = {ctx_size, nullptr, true};
    auto* ctx = ggml_init(params);

    auto result = build(ctx);