Forums - How to use DSP runtime on Snapdragon 855

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How to use DSP runtime on Snapdragon 855
paulwang
Join Date: 2 Dec 21
Posts: 1
Posted: Fri, 2021-12-03 00:32
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Dear Sir,

I am trying to use SNPE to do video super resolution on Snapdragon 855 devices (Xiaomi Mi9 and Samsung Galaxy S10). And now I have met two major issues. The version of SDK I am using is 1.55.0.

1. When I use CPU runtime, the engine build API will always return nullptr if I add the network resizing procedure from the following page before building. 

https://developer.qualcomm.com/sites/default/files/docs/snpe/network_res...

As for the video super resolution scenario, the input data size is changing from time to time, so the resizing is a must.

2. When I tried DSP runtime, the engine build also returns nullptr, and the always return false on Snapdragon 855 devices 

I follow all the the steps in https://developer.qualcomm.com/sites/default/files/docs/snpe/dsp_runtime... , and also set "unsignedPD:ON" into platform config before the buiding.

I am not sure if the reference guide is still valid now.

Looking forward to your reply.

Thanks a lot.

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Re: How to use DSP runtime on Snapdragon 855
iamjianliu
Join Date: 24 Oct 21
Posts: 9
Posted: Thu, 2021-12-16 00:16
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Hi, did you passed platform checking?
i did platform checking for dsp using command snpe-platform-validator --dsp, it showed err like bellow:
**************************************************
ubuntu@qrb5165-rb5:~/lj$ snpe-platform-validator --runtime dsp
PF_VALIDATOR: DEBUG: Calling PlatformValidator->setRuntime
PF_VALIDATOR: DEBUG: Calling PlatformValidator->RuntimeCheck
PF_VALIDATOR: DEBUG: Testing for the support of DSP runtime.
PF_VALIDATOR: DEBUG: CPU side validation passed.
 
PF_VALIDATOR: DEBUG: starting calculator test
PF_VALIDATOR: DEBUG: Loading DSP stub: libcalculator.so
PF_VALIDATOR: DEBUG: Successfully loaded DSP library - 'libcalculator.so'.  Setting up pointers.
PF_VALIDATOR: ERROR: -2 . Error while executing the sum function.
PF_VALIDATOR: ERROR: Please use testsig if using unsigned images.
PF_VALIDATOR: ERROR: Also make sure ADSP_LIBRARY_PATH points to directory containing skels.
Unit Test on the runtime DSP: Failed.
SNPE is NOT supported for runtime DSP on the device.
PF_VALIDATOR: DEBUG: Calling PlatformValidator->IsRuntimeAvailable
PF_VALIDATOR: DEBUG: CPU side validation passed.
 
PF_VALIDATOR: DEBUG: starting calculator test
PF_VALIDATOR: DEBUG: Loading DSP stub: libcalculator.so
PF_VALIDATOR: DEBUG: Successfully loaded DSP library - 'libcalculator.so'.  Setting up pointers.
PF_VALIDATOR: ERROR: -2 . Error while executing the sum function.
PF_VALIDATOR: ERROR: Please use testsig if using unsigned images.
PF_VALIDATOR: ERROR: Also make sure ADSP_LIBRARY_PATH points to directory containing skels.
Runtime DSP Prerequisites: Absent.
*******************************************************
my environment is:
Snapdragon865;
ubuntu1804-qrb5165-rb5;
snpe-1.55.0
 
my path settings are:
export SNPE_ROOT=/home/ubuntu/lj/snpe
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${SNPE_ROOT}/lib/aarch64-ubuntu-gcc7.5/
export PATH=$PATH:${SNPE_ROOT}/bin/aarch64-ubuntu-gcc7.5/
export ADSP_LIBRARY_PATH="${SNPE_ROOT}/lib/dsp/;/usr/lib/rfsa/adsp;/dsp"
 
Any advices would be very appritiated.
thanks a lot.
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Re: How to use DSP runtime on Snapdragon 855
weihuan
Join Date: 12 Apr 20
Posts: 270
Posted: Mon, 2021-12-27 02:10
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Dear customer,

Regarding the snpe-platform-validator, you need to run on device only, not any host or other client.

You can try the following commands to check the SPE validation.

adb -s $1 shell "cd ${TARGET_PATH} &&
                  export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${TARGET_PATH}/${SNPE_TARGET_ARCH}/lib &&
                  export PATH=${PATH}:${TARGET_PATH}/$SNPE_TARGET_ARCH/bin &&
                  export ADSP_LIBRARY_PATH=\"${TARGET_PATH}/dsp/lib;/system/lib/rfsa/adsp;/system/vendor/lib/rfsa/adsp;/dsp\" &&
                  ./snpe-platform-validator --runtime dsp"

BR.

Wei

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