- [PP] Addded ability to preprocess inputs into plugin desired format #857

anton-potapov · 2020-06-10T11:40:26Z

[PP] Addded ability to preprocess inputs into plugin
desired format

changed InferRequestInternal:

added _deviceInputs member to store plugin desired perprocessing
targets
added default argument to preProcessingRequired to describe plugin
specific desired preprocessing target
SetBlob and GetBlob to deal with plugin desired preprocessing targets
(_deviceInputs)
added addInputPreProcessingFor helper method to avoid code
duplication

changed TEMPLATE plugin to use new functionality:

removed explicit presicion conversion (to use built-in one of
InferRequestInternal)
_networkInputBlobs to use InferRequestInternal::_deviceInputs

ilyachur · 2020-08-17T05:10:24Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+        for (auto& pp_result : inputs) {
+            auto const& input_name    = pp_result.first;
+            auto & result_blob        = pp_result.second;
+            auto const& ir_input_blob = _inputs[input_name];


What happens if result_blob (inputs[input_name]) and ir_input_blob(_inputs[input_name]) point to the one blob?

it's handled in the device_specific_preproc_req flag

not relevant any more - patch is reworked

ilyachur · 2020-08-17T05:13:11Z

inference-engine/src/preprocessing/ie_preprocess_data.cpp

+    execute(_roiBlob, outBlob, info, serial, batchSize);
+}
+void PreProcessData::execute(const Blob::Ptr& inBlob, Blob::Ptr &outBlob, const PreProcessInfo& info, bool serial, int batchSize) {
+


nit: redundant line

not relevant any more - patch is reworked

vinograd47 · 2020-08-17T10:07:02Z

inference-engine/src/preprocessing/ie_preprocess_data.cpp

-    if (_roiBlob == nullptr) {
-        THROW_IE_EXCEPTION << "Input pre-processing is called without ROI blob set";
+    if (inBlob == nullptr) {
+        THROW_IE_EXCEPTION << "Input pre-processing is called with null inBlob";
    }

    batchSize = PreprocEngine::getCorrectBatchSize(batchSize, _roiBlob);


I suppose _roiBlob should be replaced with inBlob everywhere in the function body (including its sub-routines).

not relevant any more - patch is reworked

vinograd47 · 2020-08-17T10:09:04Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+            auto                   pp_it  = _preProcData.find(input_name);
+            const bool preprocDataExists  = (pp_it != _preProcData.end());
+
+            Blob::Ptr roi_blob = (preprocDataExists) ? (*pp_it).second ->getRoiBlob() : Blob::Ptr{nullptr};


Does getRoiBlob always returns non-NULL? Just from its name I would expect that this is an optional crop pre-processing, which might not be enabled by user (for example, only color space conversion preprocessing).

I think yes, if preprocDataExists is true, it means that preporoc engine is created for particular input and setRoiBlob is called in SetBlob

@ilya-lavrenov is correct.

getRoiBlob is a bad name, and now should be something like getUserBlob. I have added a FIXME to rename it (and accompanying one seRoiBlob )

vinograd47 · 2020-08-17T10:09:58Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+            Blob::Ptr roi_blob = (preprocDataExists) ? (*pp_it).second ->getRoiBlob() : Blob::Ptr{nullptr};
+
+            const bool device_specific_preproc_req = (ir_input_blob != result_blob);
+            const bool user_specific_preproc_req   = (roi_blob != nullptr);


Based on the previous comment - I would expect that user_specific_preproc_req == preprocDataExists. And roi_blob is just an optional pre-processing configuration.

roi_blob is not empty, if preprocDataExists is true

not relevant any more - patch is reworked

apankratovantonp · 2020-08-17T12:29:03Z

inference-engine/src/preprocessing/ie_preprocess_data.cpp

@@ -779,6 +779,7 @@ class PreProcessData : public IPreProcessData {
    Blob::Ptr getRoiBlob() const override;

    void execute(Blob::Ptr &outBlob, const PreProcessInfo& info, bool serial, int batchSize = -1) override;
+    void execute(const Blob::Ptr& inBlob, Blob::Ptr &outBlob, const PreProcessInfo& info, bool serial, int batchSize = -1) override;


I think it is better to rename outBlob to preprocessedBlobs as inference requests also has some outBlobs.

inBlob to userBlob?

renamed outBlob to preprocessedBlob and _roiBlob to _userBlob. (though renaming of according methods is postponed)

apankratovantonp · 2020-08-17T12:34:41Z

@anton-potapov Please add usage example with explanations into openvino/docs/template_plugin.

ilya-lavrenov · 2020-08-26T14:24:10Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+                if (device_specific_preproc_req && !preprocDataExists) {
+                    pp_it = _preProcData.emplace_hint(_preProcData.end(), input_name, CreatePreprocDataHelper());
+                }
+                auto& pp = (*pp_it).second;


(*pp_it).second -> pp_it->second

not relevant any more - patch is reworked

ilya-lavrenov · 2020-08-26T14:35:21Z

inference-engine/src/preprocessing/ie_preprocess_data.cpp

@@ -779,6 +779,7 @@ class PreProcessData : public IPreProcessData {
    Blob::Ptr getRoiBlob() const override;

    void execute(Blob::Ptr &outBlob, const PreProcessInfo& info, bool serial, int batchSize = -1) override;


do we need a method with a single blob argument?

not relevant any more - patch is reworked

ilya-lavrenov · 2020-08-26T14:43:55Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+                }
+                auto& pp = (*pp_it).second;
+
+                auto src_blob = (roi_blob) ? roi_blob : ir_input_blob;


src_blob -> user_blob?

not relevant any more - patch is reworked

ilya-lavrenov · 2020-08-26T14:47:25Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

@@ -228,13 +228,29 @@ class InferRequestInternal : virtual public IInferRequestInternal {
     * @param serial Whether to use multiple threads to execute the step
     */
    void execDataPreprocessing(InferenceEngine::BlobMap& inputs, bool serial = false) {


why inputs? I suppose they are outputs?

renamed to preprocessedBlobs

ilya-lavrenov · 2020-08-26T14:48:30Z

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

+
+            Blob::Ptr roi_blob = (preprocDataExists) ? (*pp_it).second ->getRoiBlob() : Blob::Ptr{nullptr};
+
+            const bool device_specific_preproc_req = (ir_input_blob != result_blob);


I want to see the usage of this function when device_specific_preproc_req is true, because currently all plugins call this function with _inputs and device_specific_preproc_req is always false

not relevant any more - patch is reworked

ilya-lavrenov · 2020-09-29T20:42:19Z

@anton-potapov when are we going to proceed with this PR?

anton-potapov · 2020-12-01T14:42:54Z

@anton-potapov Please add usage example with explanations into openvino/docs/template_plugin.

added

anton-potapov · 2020-12-01T14:57:54Z

@ilya-lavrenov ping

inference-engine/src/plugin_api/cpp_interfaces/impl/ie_infer_request_internal.hpp

inference-engine/src/preprocessing/ie_preprocess_data.hpp

ilya-lavrenov · 2020-12-09T11:27:05Z

@ilyachur @vinograd47 please, have a look as well.

ilyachur

In general LGTM.
But I have a question. Do we have any plugins (excludes the template plugin) which use it?
Because I have found when added the tests for pre-processing that majority of plugins use the own code for pre-processing.

anton-potapov · 2020-12-09T11:41:13Z

... Do we have any plugins (excludes the template plugin) which use it?

Not yet.

Because I have found when added the tests for pre-processing that majority of plugins use the own code for pre-processing.

This is correct, test were added in advance to make sure the behaviour is not broken during the refactoring.

vinograd47

Looks OK to me

desired format changed InferRequestInternal: - added _deviceInputs member to store plugin desired perprocessing targets - added default argument to preProcessingRequired to describe plugin specific desired preprocessing target - SetBlob and GetBlob to deal with plugin desired preprocessing targets (_deviceInputs) - added addInputPreProcessingFor helper method to avoid code duplication changed TEMPLATE plugin to use new functionality: - removed explicit presicion conversion (to use built-in one of InferRequestInternal) - _networkInputBlobs to use InferRequestInternal::_deviceInputs

…#857) desired format changed InferRequestInternal: - added _deviceInputs member to store plugin desired perprocessing targets - added default argument to preProcessingRequired to describe plugin specific desired preprocessing target - SetBlob and GetBlob to deal with plugin desired preprocessing targets (_deviceInputs) - added addInputPreProcessingFor helper method to avoid code duplication changed TEMPLATE plugin to use new functionality: - removed explicit presicion conversion (to use built-in one of InferRequestInternal) - _networkInputBlobs to use InferRequestInternal::_deviceInputs

anton-potapov requested a review from a team June 10, 2020 11:40

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from fe8d75c to be11fd8 Compare June 11, 2020 08:11

ilya-lavrenov added the category: preprocessing (deprecated) Inference Engine Preprocessing library label Jul 21, 2020

anton-potapov force-pushed the preproc_streamlining branch from be11fd8 to 7e5b7eb Compare July 24, 2020 09:47

openvino-pushbot added the category: inference OpenVINO Runtime library - Inference label Aug 11, 2020

ilya-lavrenov self-assigned this Aug 15, 2020

ilya-lavrenov requested review from ilyachur, vinograd47 and apankratovantonp August 15, 2020 11:55

ilyachur reviewed Aug 17, 2020

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ilyachur self-assigned this Aug 17, 2020

vinograd47 reviewed Aug 17, 2020

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apankratovantonp reviewed Aug 17, 2020

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ilya-lavrenov reviewed Aug 26, 2020

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anton-potapov mentioned this pull request Sep 1, 2020

[PP GAPI] Addded tests to cover exisiting precision conversions done by some plugins #1976

Merged

anton-potapov mentioned this pull request Sep 16, 2020

[PP GAPI] Extended preprocessing graph to support precision conversions #2290

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anton-potapov force-pushed the preproc_streamlining branch from 7e5b7eb to 02139a7 Compare November 9, 2020 09:26

anton-potapov requested a review from a team as a code owner November 9, 2020 09:26

anton-potapov requested a review from a team November 9, 2020 09:26

anton-potapov force-pushed the preproc_streamlining branch from 02139a7 to 72dc849 Compare November 12, 2020 12:15

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from c9cff58 to e8946d2 Compare November 24, 2020 09:38

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from d62ba8e to b63d411 Compare December 1, 2020 14:31

anton-potapov changed the title ~~- [PrepProcessing] Addded ability to preprocess inputs into plugin~~ - [PrepProcessing] Addded ability to preprocess inputs into plugin desired format Dec 1, 2020

anton-potapov force-pushed the preproc_streamlining branch from b63d411 to 12e96c2 Compare December 1, 2020 14:52

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from d90f60b to f8ca497 Compare December 7, 2020 08:52

ilya-lavrenov reviewed Dec 8, 2020

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ilya-lavrenov added this to the 2021.3 milestone Dec 8, 2020

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from 929a08f to 1223f07 Compare December 9, 2020 10:37

ilya-lavrenov approved these changes Dec 9, 2020

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ilyachur approved these changes Dec 9, 2020

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vinograd47 approved these changes Dec 9, 2020

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anton-potapov force-pushed the preproc_streamlining branch from 1223f07 to 3b97794 Compare December 10, 2020 19:40

anton-potapov changed the title ~~- [PrepProcessing] Addded ability to preprocess inputs into plugin desired format~~ - [PP] Addded ability to preprocess inputs into plugin desired format Dec 10, 2020

anton-potapov force-pushed the preproc_streamlining branch 2 times, most recently from 3fcc2e1 to 71f443f Compare December 11, 2020 09:28

anton-potapov force-pushed the preproc_streamlining branch from 71f443f to b974c2c Compare December 11, 2020 12:50

ilya-lavrenov approved these changes Dec 11, 2020

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ilya-lavrenov merged commit 2495eaf into openvinotoolkit:master Dec 11, 2020

nikita-kud mentioned this pull request Feb 2, 2021

[IE Myriad] Fix for myriadInferTests_nightly.NCHW_Input test #4141

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- [PP] Addded ability to preprocess inputs into plugin desired format #857

- [PP] Addded ability to preprocess inputs into plugin desired format #857

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		@@ -779,6 +779,7 @@ class PreProcessData : public IPreProcessData {
		Blob::Ptr getRoiBlob() const override;

		void execute(Blob::Ptr &outBlob, const PreProcessInfo& info, bool serial, int batchSize = -1) override;


		Blob::Ptr roi_blob = (preprocDataExists) ? (*pp_it).second ->getRoiBlob() : Blob::Ptr{nullptr};

		const bool device_specific_preproc_req = (ir_input_blob != result_blob);

- [PP] Addded ability to preprocess inputs into plugin desired format #857

- [PP] Addded ability to preprocess inputs into plugin desired format #857

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