• Does OpenCL1.1 on Mali-T760 MP4 support cl_ext_device_fission?

    fengxueem
    fengxueem

    Hi, everyone

    Background:

    I am working on a project utilizing MACE(https://github.com/XiaoMi/mace a CNN inference framework designed for mobile devices like Mali GPU). This framework uses OpenCL to perform computation on Mali GPU. And I have an Android…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • opencl issue with Hikey970 (Mali G72)

    chunis
    chunis

    Currently I run Ubuntu on Huawei Hikey 970 board, and try to run gnuradio with gr-fosphor on it, but failed.

    At first, it failed with these lines:

    [!] CL Error (-1001, /build/gr-fosphor-9QC8j4/gr-fosphor-3.7.0.2.7b6b996/lib/fosphor/cl.c:272): Unable to…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Is the array object in OpenCL kernel mapping to global memory instead of register?

    zengzeng.sun
    zengzeng.sun

    Hi,

    I am trying to implement an OpenCL kernel on G76 with DDK r16.

    I find that if I define and use an array like "half A[16];", the performance will be poor.

    But if I use "half16 A;", the performance is very good.

    I wonder if array…

    • Answered
    • over 1 year ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Can ARM NN run on ARM Mali 400 MP2

    fatimak
    fatimak

    I wanted to find out if the ARM NN supports the ARM Mali 400 MP2 .

    Regards

    Fatima

    • Answered
    • over 1 year ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • about local memory in opencl

    tan414
    tan414

    Hello, we are developing a product based on maili T764 (RK3288) with OpenCL. In our kernel, we use about 1kB local memory every workgroup. I was wondering where is these local memory allocated, and if it is possible for us to taking advantage of the L2…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Run OpenCL sample in Android

    Aravind
    Aravind

    Hello

    I want to run OpenCL sample apps on Mali T-628 gpu in Android platform.

    i hv downloaded Mali OpenCL SDK.

    My host system is Ubuntu 12.04

    I saw entire development guides but couldnt understand.Any instructions on how to go about it?

    Thks

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • L2 cache in Mali-T628

    Daveh Shingari
    Daveh Shingari

    Hi

    I am working on Odroid board which has Mali GPU - T628. To understand the architecture better , for my research, I am looking for answers to following questions (Any help will be highly appreciated)

    Q. What is size of L1 cache (Does this hold true: …

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Kernel CL_OUT_OF_RESOURCES problem

    tan414
    tan414

    Hi,

    We are developing a program based on RK3288 (Mali T764) with Opencl. We met a very strange problem.

    Our kernel has 4 workgroups with {2,64} workitems (128 x 4 in total). The input includes two 512x768 global float arrays, one 384 global float array…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • why it apperars an CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST error when read buffer from gpu back to host memory?

    phenix
    phenix

    Hi,

    I create an read_write buffer on device. After computing the CL kernel  I'm ready to read is back to the host, but it appears an CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST error. The documents online says:

    if the read and write operations…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • MFC and Image processing on Samsung Exynos-5422

    mans
    mans

    I wan to debayer, white balance and .. using available hard ware on this ARM processor. I am not sure if it relates to this forum or not ( ), but hopefully someone redirect me to some detail information where I can find information.

    My images are arriving…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Running openCV 3 with transparent API on Mali GPUs

    mans
    mans

    OpenCV 3 RC1 has been released. It has transparent api to run on CPU or GPU.

    to make openCV transparent, it uses OpenCL kernels. To run OpenCV on GPU, the GPU should have openCL 1.2 support.

    My questions are:

    1- Since Mali T6xxx support OpenCL 1.1, is there…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Using OpenCL on Odroid-XU3 is slower than without OpenCL

    Heejin Park
    Heejin Park

    Hello, I'm using Odroid-XU3.
    And I installed Opencv 3.0.0-rc1 on odroid-xu3 ubuntu 14.04.

    I have two question.

    First, In procedure installing opencv, there's no opencl sdk directory option.
    I just check 'WITH_OPENCL' and etc.
    But, Using OpenCL…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL : Can the two GPU devices in Mali-T628 work in parallel

    Kiran Chandramohan
    Kiran Chandramohan

    Hi,

    I have an Odroid XU3 board. And i am trying to program the Mali-T628 GPU on this board with OpenCL.

    With the devices example that comes with the Mali SDK, I came to understand that there are two GPU devices on the Mali-T628. One device with 4 compute…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL for GPU and CPU on Odroid XU3

    Tomas
    Tomas

    Hi,

    I have an Odroid XU3 running Ubuntu 14.04 (big.LITTLE with A15 and A7 + Mali-T628 MP6)

    I want to program the big.LITTLE cores together with the GPU, all using OpenCL. I have read that OpenCL for Neon should make it possible to use the CPUs (both A7…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Is there offline compiler for Mali-T628 MP6 OpenCL?

    Heejin Park
    Heejin Park

    Hello, I'm using Odroid-XU3.

    And I installed Opencv 3.0.0-rc1 on odroid-xu3 ubuntu 14.04.


    I want to use function clCreateProgramWithBinary() instead of clCreateProgramWithSource().

    Because of build time for clCreateProgramWithSource() and clBuildProgram…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How about Off-line Shader Compiler to analyze OpenCL?

    saitoh
    saitoh

    Hi,

    I'm studying OpenCL and try to kernel performance analyze with Mali Developer Guide

    (Mali-T600 Series GPU OpenCL Developer Guide - Mali Developer Center)

    But I can't understand below:  In chapter 8.1.3

      "Use the Off-line Shader Compiler…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Doesn't mali support opencl 1.1 c++ wrapper?

    전세원
    전세원

    Hi I am a graduate student trying to program with opencl.

    Recently, I've bought new smartphone  equipped with mali GPU. (Galaxy S6)

    My original JNI source code is filled with C++ wrapper.

    and...   i tried to build and run my program on new devi…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL threads on Mali T628

    Alok Prakash
    Alok Prakash

    Hello Guys peterharris I am using a Mali T628 GPU on the Odroid XU3 board with Exynos 5422 chip. I have a couple of questions regarding OpenCL on the Mali GPU:


    1. Can we get information of active threads or work groups per shader core for Mali-T6xx similar…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • why vectorized code is slower?

    전세원
    전세원

    I am trying to make my image processing program faster.

    So, i changed my  scalar code into vectorized code.

    for understanding, the purpose of program is" read right(4) and left(4) total 8 pixel of target pixel   from input buffer

    pix…
    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • why Mali_OpenCL_SDK_v1.1.0 use both static library and share library

    yang
    yang

    In Mali_OpenCL_SDK_v1.1.0

    project libCommon compile to static library(./Common)

    project libOpenCL compile to share library(./lib)

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • opencl map to cpu cost long time

    yang
    yang

    I used opencl1.1 on Mali628(Exynos5422)。

    1.

    first I create a buffer

    buffer = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR, 1280*720*4, NULL, &errorNumber);

    next call the kernel to handle the buffer and waiting the command queue finish…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How to program using GPU?

    BANGYONG SONG
    BANGYONG SONG

    Hello Nice to meet you

    Please understand my bad english

    To learn to program using GPU, I have been searching informations.

    My device for test is Galaxy S6 and GPU is ARM Mali T-760.

    I'm going to try to use GPU for computer vision.

    To set up environment…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Opencl error sampler_t

    bu
    bu

    Hello,

    I am developping a short application to downsampling images on my samsung alpha.

    I use OpenCL to develop on my GPU.

    I have a problem when I use a sampler_t. Just when I decrare a sampler_t variable in my kernel, the program crash and gave me that…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Cache Coherence for BigLittle CPUs and Arm Mali T628 MP6 GPU on the odroid XU3 board

    Kiran Chandramohan
    Kiran Chandramohan

    I am using the odroid XU3 board. It has the Samsung Exynos5422 SoC. The SoC has BigLittle CPUs and the Arm Mali T628 MP6 GPU.  I would like to run the CPU and the GPU in parallel on different sections of the array that I am processing. Currently to enforce…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Can I create a opencl buffer from a GraphicBuffer or a raw ion buffer

    songmao
    songmao

    Hello,

          I found out that on qcom platform, there's a extension,

    https://www.khronos.org/registry/cl/extensions/qcom/cl_qcom_ion_host_ptr.txt

    Can I do the same on mali T760, android platform?

    Songmao

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
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