• printf in opencl kernel not work

    ericlew
    ericlew

    I try to printf logs within the kernel of opencl, but it does not work. And then I try the example code of  <program guide of opencl>, it does not work too. What I did wrong? please give me some suggestions, the example code are as follows:

    #include…

    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali GPU Shader core Group decision(OpenCL)

    Son
    Son

    Hello, I am jang-hyun Son, from seoul korea

    I am now studying OpenCL using Mali GPU Midgard, and I have a question.
    In Mali GPU OpenCL Development guide, I found a concept, Shader core group.
    I know that Shader core is equal to OpenCL Compute unit, and There…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • why Mali G71 uses multiple L2 caches

    Son
    Son

    Hi, I am jang-hyun Son, a college student from South Korea.

    I will study Mali GPU with OpenCL, and before that, I am now studying about the Mali G71 architecture.

    My question is that, Why are there multiple(actually 4) L2 Caches in the image above.

    …
    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Does Huawei Mate 9 support OpenCL?

    whelement
    whelement

    I am trying to use Huawei Mate9 to test ARM compute library, since it has been mentioned in the blog. However, I cannot run any OpenCL apps. I was wondering if OpenCL is really supported on Huawei Mate9. Do I need to modify the configuration to enable…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Compute Library:- Manual build incantation doesn't work

    onedbup
    onedbup

    Hi

    It's me again!! I've moved on from compiling via scons, sorting out the libOpenCL stub libs and running the examples. The inacantation shown in the documentation under Building for linux-> How to manually build the examples has some issues that I…

    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • library "libGLES_mali.so" not found when running arm_compute_benchmark

    h_t_jacky
    h_t_jacky

    Hi,

    I'm trying to run arm_compute_benchmark on an Android phone with mali GPU supported, follow the steps provided in https://arm-software.github.io/ComputeLibrary/latest/tests.xhtml#writing_tests.

    But get following error:

    WARNING: linker: /data/local…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Offline asm dump

    Hshmhashemi
    Hshmhashemi

    Is there any way to get an offline asm dump for OpenCL kernels? 

    We have a convolution shader generator that we use to generate for everything from iOS Metal to Android OpenCL.

    The kernels work with reasonable perf on NVidia, AMD, Intel, Apple and Adreno…

    • over 2 years ago
    • Open Source Software and Platforms
    • Android forum
  • Mali-G71: ARM's Most Powerful, Scalable and Efficient GPU to Date

    Espen Oybo
    Espen Oybo

    The Mali-G71 GPU is the latest and greatest offering in the Mali high-performance family of GPUs. Built on the brand new Bifrost architecture, Mali-G71 represents a whole new level of high-end mobile graphics capabilities whilst still maintaining Mali…

    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming blog
  • OpenCL T860MP4 on RK3399 soc with Ubuntu 18.04 "clBuildProgram is missing.."

    blark
    blark

    Hi folks,

    I'm trying to use OpenCL the above mentioned platform and am getting the following error message: 

    clBuildProgram is missing from OpenCL shared library.

    The OS is Ubuntu 18.04 LTS, and the package providing the OpenCL library is:

    libmali-rk…

    • over 2 years ago
    • Open Source Software and Platforms
    • Arm Development Platforms forum
  • Running AlexNet on Raspberry Pi with Compute Library

    Gian Marco Iodice
    Gian Marco Iodice

    If you’d like to develop your Convolutional Neural Networks using just the Compute Library and a Raspberry Pi, this step-by-step guide will show you how… and it comes complete with all the tools you’ll need to get up and running.

    If…

    • over 3 years ago
    • Processors
    • Processors blog
  • half_ and native_ functions not compiling in Samsung Galaxy S7

    mompes
    mompes

    I am trying to optimize my OpenCL code running on a Samsung Galaxy S7 (SM-G930F) with an Exynos Octa 8890 and a Mali-T880 using Android. According to OpenCL-Z the gpu supports OpenCL 1.2 full profile. I have a lot of OpenCL code correctly compiling and…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali T760MP4 OpenCL performance issue

    hiwu
    hiwu

    Hi :

    I use RK3288 SoC and force the Mali T760MP4 work at 600Mhz. "clpeak" program from git hub is used for testing performance. "clpeak" always show mali works at 200Mhz not 600Mhz.

    (1) OS is TinkerOS_Debian V1.8. It can download from…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali Linux Driver Error Message when running opencl program

    hiwu
    hiwu

    Hi all:

    I use RK3288 with Linux 4.4 and opencl program running on it. I saw some error message print of the console.


    [ 6247.837157] mali ffa30000.gpu: JS: Job Hard-Stopped (took more than 50 ticks at 100 ms/tick)
    [ 6247.845711] mali ffa30000.gpu: JS: Job…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • What is the relation between Mali shader core and OpenCL work-group

    hiwu
    hiwu

    Hi all:

    I use a RK3288 with mali T760 MP4 board. T760 has 16 shader core.
    (1) Is there 64 shader core (16*4) in mali T760 MP4?
    (2) Does one opencl work-group use more than 1 shader core ?

    Thank you

    -Jack

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali Offline Compiler v5.7 results

    hiwu
    hiwu

    Hi  all:

    I got the following result by compiling a opencl program. I do not know what is "work registers" and "uniform registers". Mali T600 a register bank that contains 1024 registers. Are the 1024 registers the sum of  "wor resigters…

    • Answered
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Cartoonifying Images on Raspberry Pi with the Compute Library

    Gian Marco Iodice
    Gian Marco Iodice

    Hi folks!

    Here we are! For the first hands-on guide of the new Computer Vision and Machine Learning software library developed at Arm: Compute Library!

    Compute Library is a rich collection of functions for image processing, computer vision and machine…

    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming blog
  • compute performance between cpu and mali gpu?

    gux
    gux

    I'am trying use opencl to replace some matrix multiplication and vector compute. but the gpu always slower cpu 2--4 times.

    In cpu we use neon simd,in gpu i also use vector like float4,float16 .

    I do those test on MT6753(ARM-A53 @ 1.5GHz,Mali T720…

    • 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
  • 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 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
  • 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
  • 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
  • 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 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
  • Consistent Kernel Time

    Ben
    Ben

    I'm trying to run an OpenCL kernel multiple times, in sequence. When doing this I cannot get a consistent timing between the first execution and every other execution of the kernel. Each time the kernel is run I reset the kernel arguments and call clEnqueueNDRangekernel…

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