session.cc
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// sherpa-onnx/csrc/session.cc
//
// Copyright (c) 2023 Xiaomi Corporation
#include "sherpa-onnx/csrc/session.h"
#include <string>
#include <utility>
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/csrc/provider.h"
#if defined(__APPLE__)
#include "coreml_provider_factory.h" // NOLINT
#endif
namespace sherpa_onnx {
static Ort::SessionOptions GetSessionOptionsImpl(int32_t num_threads,
std::string provider_str) {
Provider p = StringToProvider(std::move(provider_str));
Ort::SessionOptions sess_opts;
sess_opts.SetIntraOpNumThreads(num_threads);
sess_opts.SetInterOpNumThreads(num_threads);
switch (p) {
case Provider::kCPU:
break; // nothing to do for the CPU provider
case Provider::kCUDA: {
OrtCUDAProviderOptions options;
options.device_id = 0;
// set more options on need
sess_opts.AppendExecutionProvider_CUDA(options);
break;
}
case Provider::kCoreML: {
#if defined(__APPLE__)
uint32_t coreml_flags = 0;
(void)OrtSessionOptionsAppendExecutionProvider_CoreML(sess_opts,
coreml_flags);
#else
SHERPA_ONNX_LOGE("CoreML is for Apple only. Fallback to cpu!");
#endif
break;
}
}
return sess_opts;
}
Ort::SessionOptions GetSessionOptions(
const OnlineTransducerModelConfig &config) {
return GetSessionOptionsImpl(config.num_threads, config.provider);
}
Ort::SessionOptions GetSessionOptions(const OfflineModelConfig &config) {
return GetSessionOptionsImpl(config.num_threads, config.provider);
}
} // namespace sherpa_onnx