void InfEngineBackendNet::init()
{
if (inputs.empty())
{
// Collect all external input blobs.
inputs.clear();
std::map<std::string, InferenceEngine::DataPtr> internalOutputs;
for (const auto& l : layers)
{
for (const InferenceEngine::DataWeakPtr& ptr : l->insData)
{
InferenceEngine::DataPtr inp(ptr);
if (internalOutputs.find(inp->name) == internalOutputs.end())
{
InferenceEngine::InputInfo::Ptr inpInfo(new InferenceEngine::InputInfo());
inpInfo->setInputData(inp);
if (inputs.find(inp->name) == inputs.end())
inputs[inp->name] = inpInfo;
}
}
for (const InferenceEngine::DataPtr& out : l->outData)
{
// TODO: Replace to uniquness assertion.
if (internalOutputs.find(out->name) == internalOutputs.end())
internalOutputs[out->name] = out;
}
}
CV_Assert(!inputs.empty());
}
if (outputs.empty())
{
// Add all unconnected blobs to output blobs.
InferenceEngine::OutputsDataMap unconnectedOuts;
for (const auto& l : layers)
{
// Add all outputs.
for (const InferenceEngine::DataPtr& out : l->outData)
{
// TODO: Replace to uniquness assertion.
if (unconnectedOuts.find(out->name) == unconnectedOuts.end())
unconnectedOuts[out->name] = out;
}
// Remove internally connected outputs.
for (const InferenceEngine::DataWeakPtr& inp : l->insData)
{
unconnectedOuts.erase(InferenceEngine::DataPtr(inp)->name);
}
}
CV_Assert(!unconnectedOuts.empty());
for (auto it = unconnectedOuts.begin(); it != unconnectedOuts.end(); ++it)
{
outputs[it->first] = it->second;
}
}
// Set up input blobs.
inpBlobs.clear();
for (const auto& it : inputs)
{
CV_Assert(allBlobs.find(it.first) != allBlobs.end());
inpBlobs[it.first] = allBlobs[it.first];
}
// Set up output blobs.
outBlobs.clear();
for (const auto& it : outputs)
{
CV_Assert(allBlobs.find(it.first) != allBlobs.end());
outBlobs[it.first] = allBlobs[it.first];
}
if (!isInitialized())
initPlugin(*this);
}
void InfEngineBackendNet::init(int targetId)
{
if (inputs.empty())
{
// Collect all external input blobs.
inputs.clear();
std::map<std::string, InferenceEngine::DataPtr> internalOutputs;
for (const auto& l : layers)
{
for (const InferenceEngine::DataWeakPtr& ptr : l->insData)
{
InferenceEngine::DataPtr inp(ptr);
if (internalOutputs.find(inp->name) == internalOutputs.end())
{
InferenceEngine::InputInfo::Ptr inpInfo(new InferenceEngine::InputInfo());
inpInfo->setInputData(inp);
if (inputs.find(inp->name) == inputs.end())
inputs[inp->name] = inpInfo;
}
}
for (const InferenceEngine::DataPtr& out : l->outData)
{
// TODO: Replace to uniqueness assertion.
if (internalOutputs.find(out->name) == internalOutputs.end())
internalOutputs[out->name] = out;
}
}
CV_Assert(!inputs.empty());
}
if (outputs.empty())
{
// Add all unconnected blobs to output blobs.
InferenceEngine::OutputsDataMap unconnectedOuts;
for (const auto& l : layers)
{
// Add all outputs.
for (const InferenceEngine::DataPtr& out : l->outData)
{
// TODO: Replace to uniqueness assertion.
if (unconnectedOuts.find(out->name) == unconnectedOuts.end())
unconnectedOuts[out->name] = out;
}
// Remove internally connected outputs.
for (const InferenceEngine::DataWeakPtr& inp : l->insData)
{
unconnectedOuts.erase(InferenceEngine::DataPtr(inp)->name);
}
}
CV_Assert(!unconnectedOuts.empty());
for (auto it = unconnectedOuts.begin(); it != unconnectedOuts.end(); ++it)
{
outputs[it->first] = it->second;
}
}
// Set up input blobs.
inpBlobs.clear();
for (const auto& it : inputs)
{
CV_Assert(allBlobs.find(it.first) != allBlobs.end());
inpBlobs[it.first] = allBlobs[it.first];
it.second->setPrecision(inpBlobs[it.first]->precision());
}
// Set up output blobs.
outBlobs.clear();
for (const auto& it : outputs)
{
CV_Assert(allBlobs.find(it.first) != allBlobs.end());
outBlobs[it.first] = allBlobs[it.first];
}
switch (targetId)
{
case DNN_TARGET_CPU: setTargetDevice(InferenceEngine::TargetDevice::eCPU); break;
case DNN_TARGET_OPENCL_FP16:
setPrecision(InferenceEngine::Precision::FP16);
/* Falls through. */
case DNN_TARGET_OPENCL: setTargetDevice(InferenceEngine::TargetDevice::eGPU); break;
case DNN_TARGET_MYRIAD:
{
setPrecision(InferenceEngine::Precision::FP16);
setTargetDevice(InferenceEngine::TargetDevice::eMYRIAD); break;
}
default:
CV_Error(Error::StsError, format("Unknown target identifier: %d", targetId));
}
if (!isInitialized())
initPlugin(*this);
}