与“未找到 GPU”有什么关系。回退到CPU设备”
刚刚下载了 AMD-APP-SDK-v2.5-RC2-lnx32
,为什么当我尝试执行示例程序时出现:GPU not found.
?
%> ./AESEncryptDecrypt
Platform 0 : Advanced Micro Devices, Inc.
Encrypting Image ....
Input Image : input512.bmp
Key : 15 201 51 89 92 34 96 66 11 225 161 96 81 211 108 124
GPU not found. Falling back to CPU device
Selected Platform Vendor : Advanced Micro Devices, Inc.
Device 0 : Intel(R) Core(TM)2 Duo CPU T5870 @ 2.00GHz
Executing kernel for 1 iterations
-------------------------------------------
Output Filename : output.bmp
============================================
fglrxinfo:
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon HD 3400 Series
OpenGL version string: 3.3.10665 Compatibility Profile Context
Just downloaded AMD-APP-SDK-v2.5-RC2-lnx32
, why i got this: GPU not found.
, when i try to execute a sample program ?
%> ./AESEncryptDecrypt
Platform 0 : Advanced Micro Devices, Inc.
Encrypting Image ....
Input Image : input512.bmp
Key : 15 201 51 89 92 34 96 66 11 225 161 96 81 211 108 124
GPU not found. Falling back to CPU device
Selected Platform Vendor : Advanced Micro Devices, Inc.
Device 0 : Intel(R) Core(TM)2 Duo CPU T5870 @ 2.00GHz
Executing kernel for 1 iterations
-------------------------------------------
Output Filename : output.bmp
==========================================
fglrxinfo:
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon HD 3400 Series
OpenGL version string: 3.3.10665 Compatibility Profile Context
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听起来 Radeon HD 3400 硬件不支持 “ATI 流处理”(以及 GPU 上的 OpenCL)。
请参阅如何在 Linux 中启用 OpenCL-GPU 处理 (CL_DEVICE_TYPE_GPU)? (仅在 某些核心,并且有多个核心(启用了不同的功能)在
Fxxx
型号范围内使用)。快乐的 OpenCL-on-CPU 编码。
It sounds like the Radeon HD 3400 hardware does not support "ATI Stream Processing" (and thus OpenCL on the GPU).
See How to enable OpenCL-GPU-processing in Linux (CL_DEVICE_TYPE_GPU)? (It is only supported on certain cores, and there are multiple cores -- with different features enabled -- used within a
Fxxx
model range).Happy OpenCL-on-CPU coding.