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AMD社製GPUを用いたTensorFlow環境構築(ROCm導入編)

はじめに

AMD GPUを用いてTensorflowのサンプル動作するまでの過程を記載します。
マイニングマシンからの転用でROCmを用いたTensorFlow環境を構築できるか試してみます。
前回の構成ではPCIeの必要要件を満たせておらず、実現できませんでした。
今回は必要要件を満たしたシステムを用いてROCmの導入に成功しました。

次の記事ではTensorFlowの導入からサンプル動作までをやってみました。


本記事は概要版となります。
詳細はAMD社製GPUを用いたTensorFlow環境構築(ROCm導入編):詳細版で紹介しています。


構成

CPU: Celeron G3930
GPU: Radeon Vega 56
Ubuntu : 18.04 LTS(Kernel 4.15)
ROCm Version: 2.1

Ubuntuの導入

ROCmの導入

・システムを最新状態にし、再起動

・aptリポジトリにROCmを追加

・aptリポジトリの更新と rocm-dkmsのインストール

・ユーザー権限の設定

・システム再起動後、ROCmのインストールが正しく完了したかの確認

・実行するとGPUを認識していることがわかります。

$/opt/rocm/bin/rocminfo 
*******                  
Agent 2                  
*******                  
  Name:                    gfx900                             
  Vendor Name:             AMD                                
  Feature:                 KERNEL_DISPATCH                    
  Profile:                 BASE_PROFILE                       
  Float Round Mode:        NEAR                               
  Max Queue Number:        128                                
  Queue Min Size:          4096                               
  Queue Max Size:          131072                             
  Queue Type:              MULTI                              
  Node:                    1                                  
  Device Type:             GPU                                
  Cache Info:              
    L1:                      16KB                               
  Chip ID:                 26751                              
  Cacheline Size:          64                                 
  Max Clock Frequency (MHz):1590                               
  BDFID:                   2560                               
  Compute Unit:            56                                 
  Features:                KERNEL_DISPATCH 
  Fast F16 Operation:      FALSE                              
  Wavefront Size:          64                                 
  Workgroup Max Size:      1024                               
  Workgroup Max Size Per Dimension:
    Dim[0]:                  67109888                           
    Dim[1]:                  167773184                          
    Dim[2]:                  0                                  
  Grid Max Size:           4294967295                         
  Waves Per CU:            40                                 
  Max Work-item Per CU:    2560                               
  Grid Max Size per Dimension:
    Dim[0]:                  4294967295                         
    Dim[1]:                  4294967295                         
    Dim[2]:                  4294967295                         
  Max number Of fbarriers Per Workgroup:32                                 
  Pool Info:               
    Pool 1                   
      Segment:                 GLOBAL; FLAGS: COARSE GRAINED      
      Size:                    8372224KB                          
      Allocatable:             TRUE                               
      Alloc Granule:           4KB                                
      Alloc Alignment:         4KB                                
      Acessible by all:        FALSE                              
    Pool 2                   
      Segment:                 GROUP                              
      Size:                    64KB                               
      Allocatable:             FALSE                              
      Alloc Granule:           0KB                                
      Alloc Alignment:         0KB                                
      Acessible by all:        FALSE                              
  ISA Info:                
    ISA 1                    
      Name:                    amdgcn-amd-amdhsa--gfx900          
      Machine Models:          HSA_MACHINE_MODEL_LARGE            
      Profiles:                HSA_PROFILE_BASE                   
      Default Rounding Mode:   NEAR                               
      Default Rounding Mode:   NEAR                               
      Fast f16:                TRUE                               
      Workgroup Max Dimension: 
        Dim[0]:                  67109888                           
        Dim[1]:                  1024                               
        Dim[2]:                  16777217                           
      Workgroup Max Size:      1024                               
      Grid Max Dimension:      
        x                        4294967295                         
        y                        4294967295                         
        z                        4294967295                         
      Grid Max Size:           4294967295                         
      FBarrier Max Size:       32                                 
*** Done ***             

・こちらでも問題なさそうです。

$ /opt/rocm/opencl/bin/x86_64/clinfo 
Number of platforms:                 1
  Platform Profile:              FULL_PROFILE
  Platform Version:              OpenCL 2.1 AMD-APP (2814.0)
  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_GPU
  Vendor ID:                     1002h
  Board name:                    Vega [Radeon RX Vega]
  Device Topology:               PCI[ B#10, D#0, F#0 ]
  Max compute units:                 56
  Max work items dimensions:             3
    Max work items[0]:               1024
    Max work items[1]:               1024
    Max work items[2]:               1024
  Max work group size:               256
  Preferred vector width char:           4
  Preferred vector width short:          2
  Preferred vector width int:            1
  Preferred vector width long:           1
  Preferred vector width float:          1
  Preferred vector width double:         1
  Native vector width char:          4
  Native vector width short:             2
  Native vector width int:           1
  Native vector width long:          1
  Native vector width float:             1
  Native vector width double:            1
  Max clock frequency:               1590Mhz
  Address bits:                  64
  Max memory allocation:             7287183769
  Image support:                 Yes
  Max number of images read arguments:       128
  Max number of images write arguments:      8
  Max image 2D width:                16384
  Max image 2D height:               16384
  Max image 3D width:                2048
  Max image 3D height:               2048
  Max image 3D depth:                2048
  Max samplers within kernel:            26751
  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:                     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:                8573157376
  Constant buffer size:              7287183769
  Max number of constant args:           8
  Local memory type:                 Scratchpad
  Local memory size:                 65536
  Max pipe arguments:                16
  Max pipe active reservations:          16
  Max pipe packet size:              2992216473
  Max global variable size:          7287183769
  Max global variable preferred total size:  8573157376
  Max read/write image args:             64
  Max on device events:              1024
  Queue on device max size:          8388608
  Max on device queues:              1
  Queue on device preferred size:        262144
  SVM capabilities:              
    Coarse grain buffer:             Yes
    Fine grain buffer:               Yes
    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:     64
  Error correction support:          0
  Unified memory for Host and Device:        0
  Profiling timer resolution:            1
  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
  Queue on Device properties:                
    Out-of-Order:                Yes
    Profiling :                  Yes
  Platform ID:                   0x7fa588403a30
  Name:                      gfx900
  Vendor:                    Advanced Micro Devices, Inc.
  Device OpenCL C version:           OpenCL C 2.0 
  Driver version:                2814.0 (HSA1.1,LC)
  Profile:                   FULL_PROFILE
  Version:                   OpenCL 1.2 
  Extensions:                    cl_khr_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_media_ops cl_amd_media_ops2 cl_khr_subgroups cl_khr_depth_images cl_amd_copy_buffer_p2p cl_amd_assembly_program 

まとめ

上記手順で無事にROCmの導入及びGPUの認識ができたようなので、
次回以降、TensorFlowの導入、サンプル動作を進めたいと思います。

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