Method eval

external/ggml/tests/test-backend-ops.cpp:1296–1470

    }

    test_status_t eval(ggml_backend_t backend1,
                       ggml_backend_t backend2,
                       const char *   op_names_filter,
                       printer *      output_printer) {
        mode = MODE_TEST;

        ggml_init_params params = {
            /* .mem_size = */ ggml_tensor_overhead()*128 + ggml_graph_overhead(),
            /* .mem_base = */ NULL,
            /* .no_alloc = */ true,
        };
        ggml_context * ctx = ggml_init(params);
        GGML_ASSERT(ctx);

        gf = ggml_new_graph(ctx);

        // pre-graph sentinel
        add_sentinel(ctx);

        ggml_tensor * out = build_graph(ctx);
        current_op_name   = op_desc(out);
        check_for_f16_tensor(ctx);

        if (!matches_filter(out, op_names_filter)) {
            //printf("  %s: skipping\n", op_desc(out).c_str());
            ggml_free(ctx);
            return test_status_t::SKIPPED;
        }

        // check if the backends support the ops
        bool supported = true;
        for (ggml_backend_t backend : {backend1, backend2}) {
            for (ggml_tensor * t = ggml_get_first_tensor(ctx); t != NULL; t = ggml_get_next_tensor(ctx, t)) {
                if (!ggml_backend_supports_op(backend, t)) {
                    supported = false;
                    break;
                }
            }
        }

        if (!supported) {
            // Create test result for unsupported operation
            test_result result(ggml_backend_name(backend1), current_op_name, vars(), "test",
                             false, false, "not supported");

            if (output_printer) {
                output_printer->print_test_result(result);
            }

            ggml_free(ctx);
            return test_status_t::NOT_SUPPORTED;
        }

        // post-graph sentinel
        add_sentinel(ctx);

        // allocate
        ggml_backend_buffer_t buf = ggml_backend_alloc_ctx_tensors(ctx, backend1);