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Drivers & Software

OrangePeeler
Adept I

Cannot get OpenCl to recognize AMD GPU (RX 480) after installing amdgpu-pro drivers - Ubuntu 18.04

After installing AMD's GPU drivers here (specifically "version 20.20 for Ubuntu 18.04"), "lspci" correctly displays the GPU, but "clinfo" doesn't recognize any OpenCl devices.


To install the drivers I unarchived the tarball and ran "./amdgpu-pro-install -y --opencl=pal,legacy --headless" and "sudo usermod -a -G video $LOGNAME".


The command "lspci -nn | grep -E 'VGA|Display'" properly displays the installed GPU:

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] [1002:67df] (rev c7)

But when I run "clinfo" I get an output of
Spoiler
Number of platforms 2  Platform Name                                   AMD Accelerated Parallel Processing
 Platform Vendor                                 Advanced Micro Devices, Inc.
 Platform Version                                OpenCL 2.1 AMD-APP (3110.6)
 Platform Profile                                FULL_PROFILE
 Platform Extensions                             cl_khr_icd cl_amd_event_callback cl_amd_offline_devices 
 Platform Host timer resolution                  1ns
 Platform Extensions function suffix             AMD




 Platform Name                                   Clover
 Platform Vendor                                 Mesa
 Platform Version                                OpenCL 1.1 Mesa 20.0.8
 Platform Profile                                FULL_PROFILE
 Platform Extensions                             cl_khr_icd
 Platform Extensions function suffix             MESA




 Platform Name                                   AMD Accelerated Parallel Processing
Number of devices                                 0




 Platform Name                                   Clover
Number of devices                                 0




NULL platform behavior
 clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  No platform
 clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   No platform
 clCreateContext(NULL, ...) [default]            No platform
 clCreateContext(NULL, ...) [other]              No platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  No devices found in platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  No devices found in platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
 clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  No devices found in platform

It shows no devices and no platform.

Here is some more diagnostic info:

"sudo lshw -c video":
Spoiler

  *-display                 
       description: VGA compatible controller
       product: Ellesmere [Radeon RX 470/480/570/570X/580/580X]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: c7
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=amdgpu latency=0
       resources: irq:33 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:1100(size=256) memory:f0200000-f023ffff memory:c0000-dffff
"sudo clinfo":
Spoiler

Number of platforms                               1
  Platform Name                                   AMD Accelerated Parallel Processing
  Platform Vendor                                 Advanced Micro Devices, Inc.
  Platform Version                                OpenCL 2.1 AMD-APP (3110.6)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd cl_amd_event_callback cl_amd_offline_devices 
  Platform Host timer resolution                  1ns
  Platform Extensions function suffix             AMD

  Platform Name                                   AMD Accelerated Parallel Processing
Number of devices                                 1
  Device Name                                     Ellesmere
  Device Vendor                                   Advanced Micro Devices, Inc.
  Device Vendor ID                                0x1002
  Device Version                                  OpenCL 1.2 AMD-APP (3110.6)
  Driver Version                                  3110.6
  Device OpenCL C Version                         OpenCL C 1.2 
  Device Type                                     GPU
  Device Board Name (AMD)                         AMD Radeon (TM) RX 480 Graphics
  Device Topology (AMD)                           PCI-E, 01:00.0
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Max compute units                               36
  SIMD per compute unit (AMD)                     4
  SIMD width (AMD)                                16
  SIMD instruction width (AMD)                    1
  Max clock frequency                             1338MHz
  Graphics IP (AMD)                               8.0
  Device Partition                                (core)
    Max number of sub-devices                     36
    Supported partition types                     None
  Max work item dimensions                        3
  Max work item sizes                             1024x1024x1024
  Max work group size                             256
  Preferred work group size (AMD)                 256
  Max work group size (AMD)                       1024
  Preferred work group size multiple              64
  Wavefront width (AMD)                           64
  Preferred / native vector sizes                 
    char                                                 4 / 4       
    short                                                2 / 2       
    int                                                  1 / 1       
    long                                                 1 / 1       
    half                                                 1 / 1        (cl_khr_fp16)
    float                                                1 / 1       
    double                                               1 / 1        (cl_khr_fp64)
  Half-precision Floating-point support           (cl_khr_fp16)
    Denormals                                     No
    Infinity and NANs                             No
    Round to nearest                              No
    Round to zero                                 No
    Round to infinity                             No
    IEEE754-2008 fused multiply-add               No
    Support is emulated in software               No
  Single-precision Floating-point support         (core)
    Denormals                                     No
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  Yes
  Double-precision Floating-point support         (cl_khr_fp64)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
  Address bits                                    64, Little-Endian
  Global memory size                              8566751232 (7.978GiB)
  Global free memory (AMD)                        8346384 (7.96GiB)
  Global memory channels (AMD)                    8
  Global memory banks per channel (AMD)           16
  Global memory bank width (AMD)                  256 bytes
  Error Correction support                        No
  Max memory allocation                           4244635648 (3.953GiB)
  Unified memory for Host and Device              No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       2048 bits (256 bytes)
  Global Memory cache type                        Read/Write
  Global Memory cache size                        16384 (16KiB)
  Global Memory cache line size                   64 bytes
  Image support                                   Yes
    Max number of samplers per kernel             16
    Max size for 1D images from buffer            134217728 pixels
    Max 1D or 2D image array size                 2048 images
    Base address alignment for 2D image buffers   256 bytes
    Pitch alignment for 2D image buffers          256 pixels
    Max 2D image size                             16384x16384 pixels
    Max 3D image size                             2048x2048x2048 pixels
    Max number of read image args                 128
    Max number of write image args                8
  Local memory type                               Local
  Local memory size                               32768 (32KiB)
  Local memory syze per CU (AMD)                  65536 (64KiB)
  Local memory banks (AMD)                        32
  Max number of constant args                     8
  Max constant buffer size                        4244635648 (3.953GiB)
  Preferred constant buffer size (AMD)            16384 (16KiB)
  Max size of kernel argument                     1024
  Queue properties                                
    Out-of-order execution                        No
    Profiling                                     Yes
  Prefer user sync for interop                    Yes
  Profiling timer resolution                      1ns
  Profiling timer offset since Epoch (AMD)        1607714011163656126ns (Fri Dec 11 13:13:31 2020)
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
    Thread trace supported (AMD)                  Yes
    Number of async queues (AMD)                  2
    Max real-time compute queues (AMD)            0
    Max real-time compute units (AMD)             0
    SPIR versions                                 1.2
  printf() buffer size                            4194304 (4MiB)
  Built-in kernels                                
  Device Extensions                               cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_image2d_from_buffer cl_amd_bus_addressable_memory cl_khr_spir cl_khr_gl_event 

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  No platform
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   No platform
  clCreateContext(NULL, ...) [default]            No platform
  clCreateContext(NULL, ...) [other]              Success [AMD]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   Ellesmere
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   Ellesmere
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   Ellesmere

After searching around I tried running "sudo apt-get install ocl-icd-opencl-dev," but that package was already installed. I also tried using Ubuntu 20.04 but the same issue occurred.

Any help would be very appreciated. Please let me know if there is any information I could add that may be useful.
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4 Replies
elstaci
MVP

Re: Cannot get OpenCl to recognize AMD GPU (RX 480) after installing amdgpu-pro drivers - Ubuntu 18.

Found this Linux Tech site that shows how to download and install and enable OpenCL in Linux (Debian & Ubuntu) using AMDGPU-Pro driver:

https://linuxconfig.org/install-opencl-for-the-amdgpu-open-source-drivers-on-debian-and-ubuntu

Introduction

The proprietary AMDGPU-PRO drivers only support a select small subset of Linux distributions. Non-LTS Ubuntu releases aren't supported, and Debian users are completely out of luck. To make things worse, AMD doesn't provide OpenCL support through their open source drivers.

There is good news. You can install just the OpenCL parts of the AMDGPU-PRO drivers on your Debian or Ubuntu system using the packages provided by AMD. There's a very specific way that you need to go about it, but it can be done, making things like mining cryptocurrency on an AMD card possible.

EDIT: This Users just opened a new thread concerning OpenCl in Ubuntu latest version. Maybe he can help you get Opencl to be recognized in your GPU card: https://community.amd.com/t5/drivers-software/issues-installing-opencl-from-ubuntu-amdgpu-20-45/m-p/...

OrangePeeler
Adept I

Re: Cannot get OpenCl to recognize AMD GPU (RX 480) after installing amdgpu-pro drivers - Ubuntu 18.

Hi and thanks for your response! I already tried this guide and had issues when de-packaging with dependencies. This guide is for non long term support (LTS) versions, but I am using the 18.04 LTS version of Ubuntu. Please let me know if you have any other ideas!

ableeker
Adept II

Re: Cannot get OpenCl to recognize AMD GPU (RX 480) after installing amdgpu-pro drivers - Ubuntu 18.

Version 20.20 is an earlier version, version 20.40 is the latest for Ubuntu 18.04 LTS, but it should work.

I have a Vega 64, and to install amdgpu OpenCL 20.40, I download the package from amd.com, and unpack it. Then I use the following command:

amdgpu-install --no-dkms --headless --opencl=pal

At the moment I'm using amdgpu-install, because the --no-dkms option isn't available anymore with amdgpu-pro-install, but that shouldn't make any difference. I'm using --no-dkms too, because I'm installing on Ubuntu 20.10, which has kernel 5.8, meaning the kernel module will fail to compile. But if you're installing on 18.04 LTS, you can omit that. Because I have a Vega 64, I don't need the legacy part either.

This will install the following packages on my computer:

amdgpu-core amdgpu-pro-core clinfo-amdgpu-pro ocl-icd-libopencl1-amdgpu-pro opencl-amdgpu-pro-comgr opencl-amdgpu-pro-icd

You should be able to use the following command to install 20.20 on Ubuntu 18.04 LTS:

amdgpu-pro-install --headless -opencl=pal,legacy

I also create a link to libOpenCL.so.1.2 named libOpenCL.so, which isn't present, because some programs look for it, but it shouldn't be necessary, because they should also check for libOpenCL.so.1, which is present.

What's interesting is that clinfo report when run as sudo. This report definitely shows that amdgpu-pro OpenCL is installed, and what's more, it's actually recognising the GPU! If you scroll down, it says Success, AMD Accelerated Parallel Processing, and Ellesmere for the GPU.

I believe this is a permission issue. Did the install script prompt you for superuser rights? You said you've added yourself to the video group. Can you see it listed when you use groups? You could also try sudo ldconfig, though the script should already have done that.

OrangePeeler
Adept I

Re: Cannot get OpenCl to recognize AMD GPU (RX 480) after installing amdgpu-pro drivers - Ubuntu 18.

Thank you for such detailed instructions! I'll give this a shot when I get a chance.

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