Question

详细

我需要安装哪些驱动程序/软件包才能在多个平台上启用OpenCL：CPU（英特尔），集成GPU（英特尔），专用GPU（NVIDIA）？让所有平台运行OpenCL 1.2或更高版本

会很不错

我知道这可能只是一个简单的解决方案，也许只是正确的库/ SKD选择，但是我在使用一个平台工作时遇到了一些麻烦。

运行ubuntu 14.04：我的智能核心I5带有集成的英特尔显卡和专用的NVIDIA Geforce 710m主板。

我用过的资源

https://wiki.tiker.net/OpenCLHowTo
在这里（在Debian下）它告诉我我只需要：

ICD加载器包:(您只需要其中一个）
ICD包
标题包

我已经尝试了什么

已安装的CUDA7.5（对所有人都是）
- 由于司机冲突导致黑屏
  - 通过卸载所有nvidia驱动程序并安装352
  - 仍然离开Cuda SDK安装
来自：How to make OpenCL work on 14.10 + Nvidia 331.89 drivers?
- sudo apt-get install nvidia-331 nvidia-331-uvm nvidia-opencl-dev nvidia-modprobe
- 这些软件包将我的驱动程序降级为331和340
同样来自：How to make OpenCL work on 14.10 + Nvidia 331.89 drivers?
- 链接库：
  - sudo ln -s /usr/include/nvidia-352/GL /usr/local/include
  - sudo ln -s /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /usr/local/lib/libOpenCL.so
- OpenCL 1.1 工作用于NVIDIA GPU
- 无法获得OpenCL 1.2，因此决定卸载331和340并再次安装352
已安装352（再次）
- OpenCL 1.1 停止工作用于NVIDIA GPU（但仍无效）
已安装英特尔opencl_runtime_14.2_x64_4.5.0.8.tgz
- 创建了一个与intel ICD的简单链接：
  - sudo ln -s /opt/intel/opencl-1.2-4.5.0.8/etc/intel64.icd
- OpenCL 1.2 工作用于CPU（并且仍然有效）
已安装clinfo sudo apt-get install clinfo
- 仅检测到intel CPU平台
试图安装几个不同的NVIDIA软件包，让NVIDIA GPU再次运行，但没有运气

已安装的软件包和一些信息：

供应商的ICD？

ls -l /etc/OpenCL/vendors/
total 4
-rw-r--r-- 1 root root 15 Out 22  2015 Altera.icd
lrwxrwxrwx 1 root root 45 Abr 28 13:48 intel64.icd -> /opt/intel/opencl-1.2-4.5.0.8/etc/intel64.icd

请注意缺少的nvidia.icd

CL和GL - GL有一个有效的链接......现在是IN RED

ls -l /usr/local/include
total 4
lrwxrwxrwx 1 root root   31 Abr 28 12:48 CL -> /usr/local/cuda-7.5/include/CL/
lrwxrwxrwx 1 root root   26 Abr 27 11:44 GL -> /usr/include/nvidia-352/GL (IN RED COLOR - folder doesn't exist anymore)

.so文件

ls -l /usr/local/lib/ | grep CL
lrwxrwxrwx 1 root root    40 Abr 27 11:45 libOpenCL.so -> /usr/lib/x86_64-linux-gnu/libOpenCL.so.1

已安装的软件包

dpkg --get-selections | grep nvidia
nvidia-340                  deinstall
nvidia-352                  install
nvidia-libopencl1-340               deinstall
nvidia-libopencl1-340-updates           deinstall
nvidia-libopencl1-352               deinstall
nvidia-libopencl1-352-updates           install
nvidia-modprobe                 install
nvidia-opencl-icd-340               deinstall
nvidia-opencl-icd-352               deinstall
nvidia-prime                    install
nvidia-settings                 install


dpkg --get-selections | grep opencl
nvidia-libopencl1-340               deinstall
nvidia-libopencl1-340-updates           deinstall
nvidia-libopencl1-352               deinstall
nvidia-libopencl1-352-updates           install
nvidia-opencl-icd-340               deinstall
nvidia-opencl-icd-352               deinstall
ocl-icd-libopencl1:amd64            deinstall
ocl-icd-libopencl1:i386             deinstall
opencl-headers                  install
unity-scope-openclipart             install

clinfo

clinfo 
Number of platforms:                 1
  Platform Profile:              FULL_PROFILE
  Platform Version:              OpenCL 1.2 LINUX
  Platform Name:                 Intel(R) OpenCL
  Platform Vendor:               Intel(R) Corporation
  Platform Extensions:               cl_khr_icd 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_spir cl_intel_exec_by_local_thread cl_khr_depth_images cl_khr_3d_image_writes cl_khr_fp64 


  Platform Name:                 Intel(R) OpenCL
Number of devices:               1
  Device Type:                   CL_DEVICE_TYPE_CPU
  Device ID:                     32902
  Max compute units:                 4
  Max work items dimensions:             3
    Max work items[0]:               8192
    Max work items[1]:               8192
    Max work items[2]:               8192
  Max work group size:               8192
  Preferred vector width char:           1
  Preferred vector width short:          1
  Preferred vector width int:            1
  Preferred vector width long:           1
  Preferred vector width float:          1
  Preferred vector width double:         1
  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:               1800Mhz
  Address bits:                  64
  Max memory allocation:             2040185856
  Image support:                 Yes
  Max number of images read arguments:       480
  Max number of images write arguments:      480
  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:            480
  Max size of kernel argument:           3840
  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:               No
    Round to +ve and infinity:           No
    IEEE754-2008 fused multiply-add:         No
  Cache type:                    Read/Write
  Cache line size:               64
  Cache size:                    262144
  Global memory size:                8160743424
  Constant buffer size:              131072
  Max number of constant args:           480
  Local memory type:                 Global
  Local memory size:                 32768
  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 properties:              
    Out-of-Order:                Yes
    Profiling :                  Yes
  Platform ID:                   0x1659390
  Name:                             Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz
  Vendor:                    Intel(R) Corporation
  Device OpenCL C version:           OpenCL C 1.2 
  Driver version:                1.2.0.8
  Profile:                   FULL_PROFILE
  Version:                   OpenCL 1.2 (Build 8)
  Extensions:                    cl_khr_icd 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_spir cl_intel_exec_by_local_thread cl_khr_depth_images cl_khr_3d_image_writes cl_khr_fp64

所以...

如何让NVIDIA gpu也显示为OPENCL 1.2（或更高版本）平台？集成的intel图形怎么样？
AMD图书馆可以使用我的硬件吗？为什么大多数nvidia软件包都标记为deinstall？

Answer 1

如前所述，有三件事是必要的：

来自https://wiki.tiker.net/OpenCLHowTo

ICD加载器包:(您只需要其中一个）
ICD包
标题包

因此对于Intel CPU和NVIDIA GPU

ICD加载程序包：
- OCL-ICD-libopencl1
ICD 的套餐
- 已安装Intel OpenCL runtime
- NVIDIA-的OpenCL-ICD-352
标题的包
- 的OpenCL报头

但是，要使其正常运行，必须确保通过dpkg --get-selections | grep opencl

将包标记为安装

sudo apt-get install --reinstall nvidia-opencl-icd-352 opencl-headers ocl-icd-libopencl1

最重要的是，您必须确保intel64.icd和nvidia.icd位于/etc/OpenCL/vendors（ls -l /etc/OpenCL/vendors）。

那就是说，我必须将intel64.icd与：

联系起来

cd /etc/OpenCL/vendors/
sudo ln -s /opt/intel/opencl-1.2-X.X.X.X/etc/intel64.icd

并且，由于nvidia.icd不在文件夹中（即使安装了正确的软件包之后），我不得不提取它并手动从deb软件包中移动

dpkg -x /var/cache/apt/archives/nvidia-opencl-icd-352_352.63-0ubuntu0.14.04.1_amd64.deb ~/tempfolder
sudo mv ~/tempfolder/etc/OpenCL/vendors/nvidia.icd /etc/OpenCL/vendors/nvidia.icd
rm -r ~/tempfolder

最后，确保nvidia是活动GPU

sudo prime-select nvidia
sudo reboot -r now

安装并执行clinfo，两个平台都应该显示。

clinfo 
Number of platforms:                 2
  Platform Profile:              FULL_PROFILE
  Platform Version:              OpenCL 1.2 CUDA 7.5.23
  Platform Name:                 NVIDIA CUDA
  Platform Vendor:               NVIDIA Corporation
  Platform Extensions:               cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts 
  Platform Profile:              FULL_PROFILE
  Platform Version:              OpenCL 1.2 LINUX
  Platform Name:                 Intel(R) OpenCL
  Platform Vendor:               Intel(R) Corporation
  Platform Extensions:               cl_khr_icd 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_spir cl_intel_exec_by_local_thread cl_khr_depth_images cl_khr_3d_image_writes cl_khr_fp64

在Linux中的多个平台上启用OpenCL？如何处理ICD文件？

详细

我用过的资源

我已经尝试了什么

已安装的软件包和一些信息：

所以...

1 个答案: