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5f923cd | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | // Copyright 2025 The ODML Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <memory>
#include <optional>
#include <utility>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "litert/cc/litert_environment.h" // from @litert
#include "runtime/components/sampler_factory.h"
#include "runtime/components/top_p_cpu_sampler.h"
#include "runtime/executor/executor_settings_base.h"
#include "runtime/proto/sampler_params.pb.h"
#include "litert/test/matchers.h" // from @litert
#include "runtime/util/test_utils.h" // IWYU pragma: keep
namespace litert::lm {
namespace {
TEST(SamplerFactoryFailedDlopenTest,
CreateSamplerForGpuFallsBackToCpuIfUnavailable) {
LITERT_ASSERT_OK_AND_ASSIGN(auto litert_env,
litert::Environment::Create({}));
proto::SamplerParameters sampler_params;
sampler_params.set_k(1);
sampler_params.set_p(0.0);
sampler_params.set_temperature(1.0);
sampler_params.set_seed(12345);
sampler_params.set_type(proto::SamplerParameters::TOP_P);
auto result =
CreateSampler(Backend::GPU, /*batch_size=*/1, std::move(sampler_params),
litert_env.Get(), /*sequence_size=*/1, /*vocab_size=*/201,
/*activation_data_type=*/std::nullopt);
// Should fall back to CPU sampler.
ASSERT_OK(result);
auto sampler = std::move(result.value());
TopPSampler* top_p_sampler = dynamic_cast<TopPSampler*>(sampler.get());
EXPECT_NE(top_p_sampler, nullptr);
}
} // namespace
} // namespace litert::lm
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