• OpenCL on Nexus 10

    Robert David
    Robert David

    Hello,

    Is it possible to use the Mali user space drivers on the Nexus 10 available at http://malideveloper.arm.com/develop-for-mali/drivers/mali-t6xx-gpu-user-space-drivers/ with stock Google firmware for OpenCL development? I don't want to change/debug…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • The cheapest device with support of Ubuntu(or other popular Linux), OpenCL & big friendly community

    Alex
    Alex

    Hi!

    I'm looking for the cheapest devicedevice with support of Ubuntu(or other popular Linux), OpenCL,  big friendly community and below 100$

    Any advices?

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali GPU OpenCL board

    Omry Sendik
    Omry Sendik

    Dear experts,

    I am looking for a board with a Mali T-8xx and a reasonable CPU (A9/A15/A53/A57/etc.) for developing software IPs over OpenCL

    1. Can you recommend a board?
    2. Can you recommend a development environment?
    3. Do development environments have emulation…
    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • SDK samples running on CPU instead of GPU

    Ben
    Ben

    I have been opencl on the Odroid-XU3 board, this has an ARM big.LITTLE core and a Mali-T628.

    I am trying to run the Rodinina Benchmarking Suite (Found here) on each core and the GPU separately. I have gotten the code working on each CPU using POCL. Now…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • What's the best way to fill a buffer?

    songmao
    songmao

    ARM Graphic expert:

         I have a cl_mem buffer, which will be reused every camera frame,  so it need reset to zero before we can use it.

         for opencl 1.2 we can use clEnqueueFillBuffer, for mali driver, what would be the most…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How best to maximize cache-write utilization for gpu-compute?

    Sean Lumly
    Sean Lumly

    What are some best practices for preventing data from being written out to RAM when structuring a compute job on the GPU that requires a small amount of data? For example, if I wanted to do 10M read/write operations on a contiguous 1024B array and finally…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali T628 GPU activity in Streamline

    Cao Gao
    Cao Gao

    Hi,

    I'm trying to profile GPU utilization of the Mali T628 on an Odroid-XU4 board using Streamline. When I run some graphics workloads, sometime I can see "GPU Fragment Activity", "GPU Vertex Compute" and "GPU Vertex-Tiling-Compute Activity" adds up…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali T628 user space driver performance

    Joe
    Joe

    Hi,

    I have an OpenCL program that runs on a Mali T628 platform. Originally I was using kernel driver r5p1-00rel1 and user driver r5p0-06rel0. But I was constantly hitting what seemed like a deadlock in the close-source user driver. And my program would…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • prefix sum with Opencl

    Irving.Qin
    Irving.Qin

    Hi, I am accelerating a image processing algorithm with OpenCL on the cellphone, however I met a case which had a very poor performance.

    The case is to calculate the prefix sum of each row on the image (a 2D buffer). For example, a 3x3 image:

    50   32  

    …
    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL strange error codes

    Ben
    Ben

    I'm trying to run the parboil benchmark suite on a Mali-T628 using the Mali OpenCL SDK.

    I created Makefile.conf with the following values:

    OPENCL_PATH =/PATH/TO/Mali_OpenCL_SDK_V1.1.0

    OPENCL_INC_PATH = $(OPENCL_PATH)/include

    OPENCL_LIB_PATH = $(OPENCL_PATH…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • MALI OpenCL: clEnqueueNDRangeKernel and clEnqueueTask has high API overhead

    Paul
    Paul

    Dear All,

    One of my use cases of ARM Mali graphics is running Video(HEVC) Decode Kernels. But, what we discover is that the OpenCL Kernel call APIs clEnqueueNDRangeKernel and clEnqueueTask overhead is much higher than the execution time of the kernel…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Contiguous memory map to Malis

    Norman Goldstein
    Norman Goldstein

    We have two Malis on our board Odroid XU4 .  We wish to create a large image, with one Mali creating half the image and the other Mali creating the other half.  We also want the image to be memory mapped, as it is quite large.  Can we map the image in…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Why do i get clEnqueueMapBuffer() performance hit?

    Mikael
    Mikael

    I'm currently porting vision algorithms to OpenCL that is specifically target for the Mali T800 gpus. For this particular problem I'm running on the T-880 series.

    I have several contiguous buffers of sizes 512x512 * (1, 2 and 4).

    After the four…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • What is the incompatible DDK error on Android OpenCL Mali and how do I fix it?

    Alexey
    Alexey

    I was working on an Android app which uses OpenCL on the Galaxy Note 5 which has the Mali T-760 GPU. I pulled the library from the device and got the headers from the Mali OpenCL SDK and everything worked.

    I'm trying to build and run the same app on the…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL Mali seg faults on unmap operations

    Alexey
    Alexey

    Hi,

    I'm working an an Android image processing app which uses OpenCL on Mali GPU.

    I have a problem where I get a random seg faults on clEnqueueUnmapMemObject or a following clReleaseMemObject

    The program just seg faults and I can't catch any of the OpenCL…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Overhead generated by calling clCreateBuffer

    Rafael
    Rafael

    Hi everyone,

    I'm using OpenCL on an Exynos 8890 Octacore CPU with ARM Mali-T880 MP12 GPU (Samsung S7 edge). And it is taking a high overhead when creating a buffer from the call clCreateBuffer. I'd like to know more about this issue. Is anything related…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL printf with r9p0 on Hardkernel Odroid XU4 (Mali T628MP6)

    Simon Jones
    Simon Jones

    I'm trying to use OpenCL printf on an XU4 with the r9p0 OpenCL drivers. These report as OpenCL version 1.2, so my understanding is that printf should be supported without the need to use extensions, is this the case?

    The following code works on OSX…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali t624, is there an OpenCL.so?

    MBTree
    MBTree

    Hi,

    I'm trying to develop an app for Android using the Android Studio and OpenCL. I've pulled the shared library libGLES_mali.so from my testing phone (a Huwaei P8) and attempted to link the library when building the app with Gradle in Android Studio…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • ARM Mali SDK compile error Hello World OpenCL sample code

    DavidSV2017
    DavidSV2017

    Hello,

    I am trying to compile some sample code from ARM Mali SDK (I am using a cross-compiler). I am trying to compile on a Linux Ubuntu system. The sample code is 'Hello_World_OpenCL' and when I tried to compile, I saw this error (I copied the error…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL code portability across various Mali GPUs

    Kozuch
    Kozuch

    I wonder how portable is OpenCL code. If I write something for T-628 MP6 will it run on T-880 etc.? For sure min. OpenCL standard must be supported by HW but what about possibly different GPU architecture that may make some code unique on one GPU but…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenCL and Sourcery codebench

    benlarsendk
    benlarsendk

    Hi. 

    I'm trying to learn more about programming to the GPU. I'm using a OrangePi, which has a Mali GPU. Though when I tried using the Mali OpenCL SDK it fails to compile (on the board with Armbian), since I don't have the Sourcery CodeBench installed. Though…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • ARM Mali mobile platform OpenCL

    DavidSV2017
    DavidSV2017

    Hi all,

    I have a mobile platform that has an ARM Mali GPU and Android 7.0 Nougat. I was able to use my Linux Desktop with a cross-compiler to compile the Mali SDK sample code. I copied over the SDK code with the executable files to the mobile platform…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Different between Mali OpenCL SDK and OpenCL inside OpenCV

    minhntu
    minhntu

    Hi everyone,
    Do you know what is different between Mali OpenCL SDK and OpenCL in OpenCV library. I see that in Mali OpenCL SDK has some detail sample code about how to create Memory buffer, get input data, setup argument... But in OpenCL inside OpenCV…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • ARM Mali G-71 (Master's degree project)

    nassimyoussef
    nassimyoussef

    Dear all,

    Can anyone of you tell me if i want to work with Mali G71 as a Master thesis project what can i do ?

    what project should I do ?

    what hardware or software should i buy and use ?

     

    Thank you all for your time.

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How to optimizing sparse matrix multiple vector(SPMV)by  opencl on Mali gpu ?

    gux
    gux

    spmv is a sparse matrix  A multiple a dense vector B and get a dense vector C :  C= A*B

    I use CSR sparse matrix format, but the result even slower than the same size dense matrix multiple  a dense vector.

    I read same paper and open source…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
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