OpenCL 1.2 para AMD Card

3

No meu laptop, tenha um cartão discreto que deve suportar o OpenCL 1.2 que eu preciso para executar o framework desejado:

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] (rev ff)

Eu instalei drivers de código aberto conforme descrito no responder a esta pergunta e também baixei e instalei o aplicativo AMD SDK 3.0. O código de teste devices.c e hello.c compila e executa, mas tudo é relatado OpenCL 1.1 MESA mesmo depois de substituir o link simbólico por libOpenCL.so in /usr/lib/x86_64-linux-gnu/ pelo link do SDK:

$ /opt/AMDAPPSDK-3.0/bin/x86_64/clinfo
Number of platforms:                             1
  Platform Profile:                              FULL_PROFILE
  Platform Version:                              OpenCL 1.1 MESA 11.2.0
  Platform Name:                                 Clover
  Platform Vendor:                               Mesa
  Platform Extensions:                           cl_khr_icd


  Platform Name:                                 Clover
Number of devices:                               1
  Device Type:                                   CL_DEVICE_TYPE_GPU
  Vendor ID:                                     1002h
  Max compute units:                             2
  Max work items dimensions:                     3
    Max work items[0]:                           256
    Max work items[1]:                           256
    Max work items[2]:                           256
  Max work group size:                           256
  Preferred vector width char:                   16
  Preferred vector width short:                  8
  Preferred vector width int:                    4
  Preferred vector width long:                   2
  Preferred vector width float:                  4
  Preferred vector width double:                 0
  Native vector width char:                      16
  Native vector width short:                     8
  Native vector width int:                       4
  Native vector width long:                      2
  Native vector width float:                     4
  Native vector width double:                    0
  Max clock frequency:                           750Mhz
  Address bits:                                  32
  Max memory allocation:                         268435456
  Image support:                                 No
  Max size of kernel argument:                   1024
  Alignment (bits) of base address:              1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                                     No
    Quiet NaNs:                                  Yes
    Round to nearest even:                       Yes
    Round to zero:                               No
    Round to +ve and infinity:                   No
    IEEE754-2008 fused multiply-add:             No
  Cache type:                                    None
  Cache line size:                               0
  Cache size:                                    0
  Global memory size:                            1073741824
  Constant buffer size:                          268435456
  Max number of constant args:                   13
  Local memory type:                             Scratchpad
  Local memory size:                             32768
  Kernel Preferred work group size multiple:     64
  Error correction support:                      0
  Unified memory for Host and Device:            1
  Profiling timer resolution:                    0
  Device endianess:                              Little
  Available:                                     Yes
  Compiler available:                            Yes
  Execution capabilities:                                
    Execute OpenCL kernels:                      Yes
    Execute native function:                     No
  Queue on Host properties:                              
    Out-of-Order:                                No
    Profiling :                                  Yes
  Platform ID:                                   0x7f9d5e667ac0
  Name:                                          AMD CAICOS (DRM 2.43.0, LLVM 3.8.0)
  Vendor:                                        AMD
  Device OpenCL C version:                       OpenCL C 1.1 
  Driver version:                                11.2.0
  Profile:                                       FULL_PROFILE
  Version:                                       OpenCL 1.1 MESA 11.2.0
  Extensions:                                    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_byte_addressable_store

Pergunta : Existe alguma maneira de saber se meu dispositivo realmente não suporta o OpenCL 1.2 ou se o suporte está presente, ative-o então? Muito obrigado!

P.S. Eu não instalei nenhum driver para cartão discreto, mas dizem que não preciso deles. Estou executando o X na placa incorporada:

$ glxinfo | grep -i vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
    Vendor: Intel Open Source Technology Center (0x8086)
OpenGL vendor string: Intel Open Source Technology Center

P.S.2. Quando desinstalei o opencl-headers e o mesa-opencl-icd , até /opt/AMDAPPSDK-3.0/bin/x86_64/clinfo parou de funcionar (não é possível obter IDs de plataforma).

Edit3: Corrigido o anterior, criando um link para

sudo ln -s '/opt/AMDAPPSDK-3.0/lib/x86_64/sdk/libamdocl64.so' /usr/lib/x86_64-linux-gnu/libamdocl64.so

mas agora ele reporta a CPU como dispositivo OpenCL !

$ clinfo
Number of platforms:                             1
  Platform Profile:                              FULL_PROFILE
  Platform Version:                              OpenCL 2.0 AMD-APP (1800.8)
  Platform Name:                                 AMD Accelerated Parallel Processing
  Platform Vendor:                               Advanced Micro Devices, Inc.
  Platform Extensions:                           cl_khr_icd cl_amd_event_callback cl_amd_offline_devices 


  Platform Name:                                 AMD Accelerated Parallel Processing
Number of devices:                               1
  Device Type:                                   CL_DEVICE_TYPE_CPU
  Vendor ID:                                     1002h
  Board name:                                    
  Max compute units:                             4
  Max work items dimensions:                     3
    Max work items[0]:                           1024
    Max work items[1]:                           1024
    Max work items[2]:                           1024
  Max work group size:                           1024
  Preferred vector width char:                   16
  Preferred vector width short:                  8
  Preferred vector width int:                    4
  Preferred vector width long:                   2
  Preferred vector width float:                  8
  Preferred vector width double:                 4
  Native vector width char:                      16
  Native vector width short:                     8
  Native vector width int:                       4
  Native vector width long:                      2
  Native vector width float:                     8
  Native vector width double:                    4
  Max clock frequency:                           1044Mhz
  Address bits:                                  64
  Max memory allocation:                         2147483648
  Image support:                                 Yes
  Max number of images read arguments:           128
  Max number of images write arguments:          64
  Max image 2D width:                            8192
  Max image 2D height:                           8192
  Max image 3D width:                            2048
  Max image 3D height:                           2048
  Max image 3D depth:                            2048
  Max samplers within kernel:                    16
  Max size of kernel argument:                   4096
  Alignment (bits) of base address:              1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                                     Yes
    Quiet NaNs:                                  Yes
    Round to nearest even:                       Yes
    Round to zero:                               Yes
    Round to +ve and infinity:                   Yes
    IEEE754-2008 fused multiply-add:             Yes
  Cache type:                                    Read/Write
  Cache line size:                               64
  Cache size:                                    32768
  Global memory size:                            8301789184
  Constant buffer size:                          65536
  Max number of constant args:                   8
  Local memory type:                             Global
  Local memory size:                             32768
  Max pipe arguments:                            16
  Max pipe active reservations:                  16
  Max pipe packet size:                          2147483648
  Max global variable size:                      1879048192
  Max global variable preferred total size:      1879048192
  Max read/write image args:                     64
  Max on device events:                          0
  Queue on device max size:                      0
  Max on device queues:                          0
  Queue on device preferred size:                0
  SVM capabilities:                              
    Coarse grain buffer:                         No
    Fine grain buffer:                           No
    Fine grain system:                           No
    Atomics:                                     No
  Preferred platform atomic alignment:           0
  Preferred global atomic alignment:             0
  Preferred local atomic alignment:              0
  Kernel Preferred work group size multiple:     1
  Error correction support:                      0
  Unified memory for Host and Device:            1
  Profiling timer resolution:                    1
  Device endianess:                              Little
  Available:                                     Yes
  Compiler available:                            Yes
  Execution capabilities:                                
    Execute OpenCL kernels:                      Yes
    Execute native function:                     Yes
  Queue on Host properties:                              
    Out-of-Order:                                No
    Profiling :                                  Yes
  Queue on Device properties:                            
    Out-of-Order:                                No
    Profiling :                                  No
  Platform ID:                                   0x7fbb72e8c430
  Name:                                          Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz
  Vendor:                                        GenuineIntel
  Device OpenCL C version:                       OpenCL C 1.2 
  Driver version:                                1800.8 (sse2,avx)
  Profile:                                       FULL_PROFILE
  Version:                                       OpenCL 1.2 AMD-APP (1800.8)
  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_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_spir cl_khr_gl_event 

Editar 4: tentei esta versão do driver fglrx para OpenCL no Ubuntu 16.04, o clinfo simplesmente falha.

Editar 5: Fiz esta abordagem trabalhando em LiveCD jessie personalizado do Debian 8, ele relata GPU OpenCL 1.2 ( fglrx-driver + AMD APP SDK instalado no chroot na VM (apesar de fglrx não detectar hardware e atualizar o Xorg, mas O módulo DKMS foi instalado) e empacotado no Live USB de acordo com os guias on-line), mas não conseguiu realizar o mesmo no Ubuntu 14.04 (o Debian não é suportado pelo programa que eu preciso). O problema no meu Ubuntu 16.04 e mais antigo parece ser:

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] (rev ff) (prog-if ff)
        !!! Unknown header type 7f
        Kernel driver in use: radeon
        Kernel modules: radeon

Não, eu posso fazer fglrx ver a AMD como renderizador atual (14.04) configurando a variável de ambiente DRI_PRIME=1 , mas o clinfo ainda falha lá.

Agora que li sobre o fglrx está obsoleto e os novos drivers AMD não suportam o Radeon xxxxM, enquanto o opensource radeon one não suporta o OpenCL.

    
por Slowpoke 04.02.2017 / 12:49

1 resposta

2

Você resolveu parcialmente meu problema na APU A10-7850k. Eu corri:

sudo ln -s '/opt/AMDAPPSDK-3.0/lib/x86_64/sdk/libamdocl64.so' /usr/lib/x86_64-linux-gnu/libamdocl64.so

Mas agora a CPU está em openCL 1.2, mas a GPU está em 1.1. Parece que a GPU está usando drivers open source amdgpu que foram compilados com libclc, usando o opencl 1.1. Eu não consigo descobrir como forçar o driver de gráficos para usar o AMD ... Aqui está minha saída do clinfo:

    Number of platforms:                 2
    Platform Profile:                FULL_PROFILE
    Platform Version:                OpenCL 1.1 Mesa 17.1.0-devel - padoka PPA
    Platform Name:               Clover
    Platform Vendor:                 Mesa
    Platform Extensions:                 cl_khr_icd
    Platform Profile:                FULL_PROFILE
    Platform Version:                OpenCL 2.0 AMD-APP (1800.8)
    Platform Name:               AMD Accelerated Parallel Processing
    Platform Vendor:                 Advanced Micro Devices, Inc.
    Platform Extensions:                 cl_khr_icd cl_amd_event_callback cl_amd_offline_devices 


  Platform Name:                 Clover
Number of devices:               1
  Device Type:                   CL_DEVICE_TYPE_GPU
  Vendor ID:                     1002h
  Max compute units:                 8
  Max work items dimensions:             3
    Max work items[0]:               256
    Max work items[1]:               256
    Max work items[2]:               256
  Max work group size:               256
  Preferred vector width char:           16
  Preferred vector width short:          8
  Preferred vector width int:            4
  Preferred vector width long:           2
  Preferred vector width float:          4
  Preferred vector width double:         2
  Native vector width char:          16
  Native vector width short:             8
  Native vector width int:           4
  Native vector width long:          2
  Native vector width float:             4
  Native vector width double:            2
  Max clock frequency:               720Mhz
  Address bits:                  64
  Max memory allocation:             1497105612
  Image support:                 No
  Max size of kernel argument:           1024
  Alignment (bits) of base address:      1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                     No
    Quiet NaNs:                  Yes
    Round to nearest even:           Yes
    Round to zero:               No
    Round to +ve and infinity:           No
    IEEE754-2008 fused multiply-add:         No
  Cache type:                    None
  Cache line size:               0
  Cache size:                    0
  Global memory size:                2138722304
  Constant buffer size:              1497105612
  Max number of constant args:           16
  Local memory type:                 Scratchpad
  Local memory size:                 32768
  Kernel Preferred work group size multiple:     64
  Error correction support:          0
  Unified memory for Host and Device:        1
  Profiling timer resolution:            0
  Device endianess:              Little
  Available:                     Yes
  Compiler available:                Yes
  Execution capabilities:                
    Execute OpenCL kernels:          Yes
    Execute native function:             No
  Queue on Host properties:              
    Out-of-Order:                No
    Profiling :                  Yes
  Platform ID:                   0x7fea637e5ee0
  Name:                      AMD KAVERI (DRM 2.43.0 / 4.4.0-64-generic, LLVM 5.0.0)
  Vendor:                    AMD
  Device OpenCL C version:           OpenCL C 1.1 
  Driver version:                17.1.0-devel - padoka PPA
  Profile:                   FULL_PROFILE
  Version:                   OpenCL 1.1 Mesa 17.1.0-devel - padoka PPA
  Extensions:                    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_byte_addressable_store cl_khr_fp64


  Platform Name:                 AMD Accelerated Parallel Processing
Number of devices:               1
  Device Type:                   CL_DEVICE_TYPE_CPU
  Vendor ID:                     1002h
  Board name:                    
  Max compute units:                 4
  Max work items dimensions:             3
    Max work items[0]:               1024
    Max work items[1]:               1024
    Max work items[2]:               1024
  Max work group size:               1024
  Preferred vector width char:           16
  Preferred vector width short:          8
  Preferred vector width int:            4
  Preferred vector width long:           2
  Preferred vector width float:          8
  Preferred vector width double:         4
  Native vector width char:          16
  Native vector width short:             8
  Native vector width int:           4
  Native vector width long:          2
  Native vector width float:             8
  Native vector width double:            4
  Max clock frequency:               1700Mhz
  Address bits:                  64
  Max memory allocation:             2147483648
  Image support:                 Yes
  Max number of images read arguments:       128
  Max number of images write arguments:      64
  Max image 2D width:                8192
  Max image 2D height:               8192
  Max image 3D width:                2048
  Max image 3D height:               2048
  Max image 3D depth:                2048
  Max samplers within kernel:            16
  Max size of kernel argument:           4096
  Alignment (bits) of base address:      1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                     Yes
    Quiet NaNs:                  Yes
    Round to nearest even:           Yes
    Round to zero:               Yes
    Round to +ve and infinity:           Yes
    IEEE754-2008 fused multiply-add:         Yes
  Cache type:                    Read/Write
  Cache line size:               64
  Cache size:                    16384
  Global memory size:                7321481216
  Constant buffer size:              65536
  Max number of constant args:           8
  Local memory type:                 Global
  Local memory size:                 32768
  Max pipe arguments:                16
  Max pipe active reservations:          16
  Max pipe packet size:              2147483648
  Max global variable size:          1879048192
  Max global variable preferred total size:  1879048192
  Max read/write image args:             64
  Max on device events:              0
  Queue on device max size:          0
  Max on device queues:              0
  Queue on device preferred size:        0
  SVM capabilities:              
    Coarse grain buffer:             No
    Fine grain buffer:               No
    Fine grain system:               No
    Atomics:                     No
  Preferred platform atomic alignment:       0
  Preferred global atomic alignment:         0
  Preferred local atomic alignment:      0
  Kernel Preferred work group size multiple:     1
  Error correction support:          0
  Unified memory for Host and Device:        1
  Profiling timer resolution:            1
  Device endianess:              Little
  Available:                     Yes
  Compiler available:                Yes
  Execution capabilities:                
    Execute OpenCL kernels:          Yes
    Execute native function:             Yes
  Queue on Host properties:              
    Out-of-Order:                No
    Profiling :                  Yes
  Queue on Device properties:                
    Out-of-Order:                No
    Profiling :                  No
  Platform ID:                   0x7fea585b9430
  Name:                      AMD A10-7850K APU with Radeon(TM) R7 Graphics
  Vendor:                    AuthenticAMD
  Device OpenCL C version:           OpenCL C 1.2 
  Driver version:                1800.8 (sse2,avx,fma4)
  Profile:                   FULL_PROFILE
  Version:                   OpenCL 1.2 AMD-APP (1800.8)
  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_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_spir cl_khr_gl_event '''
    
por WhyteHorse 22.02.2017 / 04:13