[thomas@Clemence:/opt/AMDAPP/samples/opencl/bin/x86_64]$ ./HelloWorld
No GPU device available.
Choose CPU as default device.
input string:
GdkknVnqkc
output string:
HelloWorld
Passed!
这里的clinfo输出可以使用GPU?提前致谢。我正在使用Ubuntu 14.04.3 LTS Trusty Kernel 3.9
我的图形卡在这里:
[thomas@Clemence:~/Documents/radeontop]$ clinfo
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.2 AMD-APP (1214.3)
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
Device ID: 4098
Board name:
Max compute units: 8
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: 3633Mhz
Address bits: 64
Max memory allocation: 4182872064
Image support: Yes
Max number of images read arguments: 128
Max number of images write arguments: 8
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: 16731488256
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 32768
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 properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 0x00007f4ef63f0fc0
Name: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
Vendor: GenuineIntel
Device OpenCL C version: OpenCL C 1.2
Driver version: 1214.3 (sse2,avx)
Profile: FULL_PROFILE
Version: OpenCL 1.2 AMD-APP (1214.3)
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
#1 楼
我应该警告您,我对Linux或编程或设备驱动程序一无所知,但是我曾经遇到过您的确切问题。这可能是udev规则问题。您的用户组可能无权写入gpu设备或任何libOpenCL.so。
$ sudo clinfo
是否找到gpu?您的程序可能未使用正确的opencl库。我认为有一些提供libopencl.so的ubuntu软件包。您不想使用它们,他们将不知道如何与您的GPU通话。您能否发布:
$ ldd /opt/AMDAPP/samples/opencl/bin/x86_64/HelloWorld
如果libOpenCL.so *行(有时为libcl.so *)没有指向AMD库,则需要找到AMD libOpenCL.so库,并确保在运行时使用的库之前先找到它。
然后我会做
$ sudo updatedb
,$ locate libOpenCL.so
或
$ locate libcl.so
您的
./HelloWorld
尝试链接到的链接。然后将LD_LIBRARY_PATH
设置到首选库的父文件夹。$ export LD_LIBRARY_PATH=/path to lib*cl.so* that was installed by AMD driver/
$ clinfo
$ ./HelloWorld
#2 楼
我也无法通过clinfo看到我的GPU。对我来说,修复是在BIOS中禁用了安全启动,这不允许Ubuntu内核加载DKMS代码。安装驱动程序后甚至出现ncurses警告,在我的情况下为Ubuntu 16.10上的AMDGPU PRO 16.60。
我希望这会有所帮助!
评论
$ \ begingroup $
clinfo不起作用,但是sudo clinfo对我有用。
$ \ endgroup $
– nair.ashvin
17年6月8日在14:20