Use PowerVR GPU and tools for computation, NOT graphics

nufsty · January 8, 2020, 4:00pm

Hi all,

I am working on a project with an Android phone that has a PowerVR G6100. The project involves machine learning, and we are hoping to use the GPU for matrix multiplication and other computation. From what I understand, we might be able to accomplish this using OpenCL.

I am very new to PowerVR and Imagination’s developer tools, and I’m not sure where to start with this. I have briefly looked over this documentation. Also, from this video, it seems like what we’re trying to do is possible.

Have any of you done similar things to this? Any suggestions or directions on where to start? Any help is appreciated.

roserg · January 20, 2020, 1:23am

Hi
You can try existing solutions
TensorFlow lite GPU delegate have optimized kernels for PowerVR.

github.com

tensorflow/tensorflow/blob/master/tensorflow/lite/delegates/gpu/cl/kernels/conv_powervr.cc

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "tensorflow/lite/delegates/gpu/cl/kernels/conv_powervr.h"

#include <algorithm>
#include <string>
#include <utility>

This file has been truncated. show original

The code generation is quite difficult because it supports different precision modes and resource types + optimizations for various cases.
If you like you can dump shaders and see actual code.

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Use PowerVR GPU and tools for computation, NOT graphics

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