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POIGP of Ivy bridge can't be found by OpenCL SDK
 

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  1. POIGP of Ivy bridge can't be found by OpenCL SDK
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    <p>I have set up a IvyBridge platform for coding OpenCL program. My system is win7 64-bit, VS2010 as developement tools. There is one i7-3770k with a nVidia GTX560 on my PC. When I queried the devices of my system, I cann't find HD4000. I have checked my system driver for HD4000 by using this webpage: <a href="http://www.intel.com/p/en_US/support/detect/graphics" rel="nofollow">http://www.intel.com/p/en_US/support/detect/graphics</a>. The report said "Current Driver Installed 8.15.10.2696". OpenCL SDK is the latest Intel SDK for OpenCL Application 2012 windows 64-bit downloaded from <a href="http://software.intel.com/en-us/articles/vcsource-tools-opencl-sdk/" rel="nofollow">http://software.intel.com/en-us/articles/vcsource-tools-opencl-sdk/</a>. The following is my code and the output. </p> <p>I also noticed that the device name of CPU is very strange. By the way, I have connected the HD4000 device to a monitor since I found someone met the issue that failed to create a CL context. And now I can find HD4000 can be detected by GPU-Z tool after we connected a monitor to HD4000. So anyone can help me solve this problem? </p> <pre><code>#include "stdafx.h" #include &lt;stdlib.h&gt; #include &lt;stdio.h&gt; #include &lt;string.h&gt; #include &lt;CL/cl.h&gt; int _tmain(int argc, _TCHAR* argv[]) { cl_platform_id *platforms; cl_uint num_platforms; cl_device_id *devices_cpu, *devices_gpu; cl_uint num_devices; char dev_name[40], dev_vendor[40], dev_version[40], dev_profile[40]; char plt_name[40], plt_vendor[40], plt_version[40], plt_profile[40]; clGetPlatformIDs(1, NULL, &amp;num_platforms); platforms = (cl_platform_id*) malloc(sizeof(cl_platform_id) * num_platforms); clGetPlatformIDs(num_platforms, platforms, NULL); for(int i = num_platforms - 1; i &gt;= 0; i--) { clGetPlatformInfo(platforms[i], CL_PLATFORM_NAME, sizeof(plt_name),&amp;plt_name,NULL); clGetPlatformInfo(platforms[i], CL_PLATFORM_VENDOR, sizeof(plt_vendor),&amp;plt_vendor,NULL); clGetPlatformInfo(platforms[i], CL_PLATFORM_VERSION, sizeof(plt_version),&amp;plt_version,NULL); clGetPlatformInfo(platforms[i], CL_PLATFORM_PROFILE, sizeof(plt_profile),&amp;plt_profile,NULL); printf("\n\n\nPlatform #%d Info: \n\n", i); printf("Platform: %s \n", plt_name); printf("Vendor: %s \n", plt_vendor); printf("Version: %s \n", plt_version); printf("Profile: %s \n", plt_profile); clGetDeviceIDs(platforms[i],CL_DEVICE_TYPE_CPU, 1, NULL, &amp;num_devices); devices_cpu = (cl_device_id *)malloc(sizeof(cl_device_id) * num_devices); clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_CPU, num_devices, devices_cpu, NULL); for(int j = 0 ; j &lt; num_devices; j++) { clGetDeviceInfo(devices_cpu[j], CL_DEVICE_NAME, sizeof(dev_name), &amp;dev_name, NULL); clGetDeviceInfo(devices_cpu[j], CL_DEVICE_VENDOR, sizeof(dev_vendor), &amp;dev_vendor, NULL); clGetDeviceInfo(devices_cpu[j], CL_DEVICE_VERSION, sizeof(dev_version), &amp;dev_version, NULL); clGetDeviceInfo(devices_cpu[j], CL_DEVICE_PROFILE, sizeof(dev_profile), &amp;dev_profile, NULL); printf("\n\n\nCPU Device Info: \n\n"); printf("Name: %s \n", dev_name); printf("Vendor: %s \n", dev_vendor); printf("Version: %s \n", dev_version); printf("Profile: %s \n", dev_profile); } clGetDeviceIDs(platforms[i],CL_DEVICE_TYPE_GPU, 1, NULL, &amp;num_devices); devices_gpu = (cl_device_id *)malloc(sizeof(cl_device_id) * num_devices); clGetDeviceIDs(platforms[i],CL_DEVICE_TYPE_GPU, num_devices, devices_gpu, NULL); for(int j = 0; j &lt; num_devices; j++) { clGetDeviceInfo(devices_gpu[j], CL_DEVICE_NAME, sizeof(dev_name), &amp;dev_name, NULL); clGetDeviceInfo(devices_gpu[j], CL_DEVICE_VENDOR, sizeof(dev_vendor), &amp;dev_vendor, NULL); clGetDeviceInfo(devices_gpu[j], CL_DEVICE_VERSION, sizeof(dev_version), &amp;dev_version, NULL); clGetDeviceInfo(devices_gpu[j], CL_DEVICE_PROFILE, sizeof(dev_profile), &amp;dev_profile, NULL); printf("\n\n\nGPU Device Info: \n\n"); printf("Platform: %s \n", dev_name); printf("Vendor: %s \n", dev_vendor); printf("Version: %s \n", dev_version); printf("Profile: %s \n", dev_profile); } free((void*)devices_cpu); free((void*)devices_gpu); } return 0; } </code></pre> <p>output: </p> <blockquote> <pre>Platform #1 Info: Platform: Intel(R) OpenCL Vendor: Intel(R) Corporation Version: OpenCL 1.1 Profile: FULL_PROFILE CPU Device Info: Name: ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌIntel(R) Corporation Vendor: Intel(R) Corporation Version: OpenCL 1.1 (Build 31360.31441) Profile: FULL_PROFILE Platform #0 Info: Platform: NVIDIA CUDA Vendor: NVIDIA Corporation Version: OpenCL 1.1 CUDA 4.2.1 Profile: FULL_PROFILE GPU Device Info: Platform: GeForce GTX 560 Ti Vendor: NVIDIA Corporation Version: OpenCL 1.1 CUDA Profile: FULL_PROFILE </pre> </blockquote>
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