Forums - Multithread in UDO DSP Softmax Example

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Multithread in UDO DSP Softmax Example
Join Date: 27 May 22
Posts: 2
Posted: Sun, 2022-06-05 21:46

Hi, I got confused about the UDO Softmax DSP example code. In `$SNPE_ROOT/examples/NativeCpp/UdoExample/Softmax/src/DSP/SoftmaxFloatImpl/SoftmaxImplLibDsp.c`, there's a thread worker function worker_thread_Softmax (L109). However, this worker function seems to process the whole input data and do not involve in any multithreads. Also, at the entrance of the worker function (L186), the number of threads is also hardcoded to 1. 

I wonder how this example achieves multiple threads on DSP. If it does not involve multi-threads, I wonder if how to enable the multi-threads for efficiency issues on DSP? The SNPE SDK version I used was 1.61.

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