import opencl_course source for a start

2013-03-11 22:03:27 +01:00
commit 08272c7de5
64 changed files with 12336 additions and 0 deletions
--- a/opencl/basic_initialize/main.cpp
+++ b/opencl/basic_initialize/main.cpp
@@ -0,0 +1,98 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2011 Advanced Micro Devices, Inc.  http://bulletphysics.org
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+///original author: Erwin Coumans
+
+#include "btOpenCLUtils.h"
+#include <stdio.h>
+
+cl_context			g_cxMainContext;
+cl_command_queue	g_cqCommandQue;
+
+
+
+int main(int argc, char* argv[])
+{
+	int ciErrNum = 0;
+	
+	cl_device_type deviceType = CL_DEVICE_TYPE_ALL;
+	const char* vendorSDK = btOpenCLUtils::getSdkVendorName();
+
+	printf("This program was compiled using the %s OpenCL SDK\n",vendorSDK);
+	int numPlatforms = btOpenCLUtils::getNumPlatforms();
+	printf("Num Platforms = %d\n", numPlatforms);
+
+	for (int i=0;i<numPlatforms;i++)
+	{
+		cl_platform_id platform = btOpenCLUtils::getPlatform(i);
+		btOpenCLPlatformInfo platformInfo;
+		btOpenCLUtils::getPlatformInfo(platform,&platformInfo);
+		printf("--------------------------------\n");
+		printf("Platform info for platform nr %d:\n",i);
+		printf("  CL_PLATFORM_VENDOR: \t\t\t%s\n",platformInfo.m_platformVendor);
+		printf("  CL_PLATFORM_NAME: \t\t\t%s\n",platformInfo.m_platformName);
+		printf("  CL_PLATFORM_VERSION: \t\t\t%s\n",platformInfo.m_platformVersion);
+		
+		cl_context context = btOpenCLUtils::createContextFromPlatform(platform,deviceType,&ciErrNum);
+		
+		int numDevices = btOpenCLUtils::getNumDevices(context);
+		printf("Num Devices = %d\n", numDevices);
+		for (int j=0;j<numDevices;j++)
+		{
+			cl_device_id dev = btOpenCLUtils::getDevice(context,j);
+			btOpenCLDeviceInfo devInfo;
+			btOpenCLUtils::getDeviceInfo(dev,&devInfo);
+			btOpenCLUtils::printDeviceInfo(dev);
+		}
+
+		clReleaseContext(context);
+	}
+
+	///Easier method to initialize OpenCL using createContextFromType for a GPU
+	deviceType = CL_DEVICE_TYPE_GPU;
+	
+	void* glCtx=0;
+	void* glDC = 0;
+	printf("Initialize OpenCL using btOpenCLUtils::createContextFromType for CL_DEVICE_TYPE_GPU\n");
+	g_cxMainContext = btOpenCLUtils::createContextFromType(deviceType, &ciErrNum, glCtx, glDC);
+	oclCHECKERROR(ciErrNum, CL_SUCCESS);
+
+	if (g_cxMainContext)
+	{
+		int numDev = btOpenCLUtils::getNumDevices(g_cxMainContext);
+
+		for (int i=0;i<numDev;i++)
+		{
+			cl_device_id		device;
+			device = btOpenCLUtils::getDevice(g_cxMainContext,i);
+			btOpenCLDeviceInfo clInfo;
+			btOpenCLUtils::getDeviceInfo(device,&clInfo);
+			btOpenCLUtils::printDeviceInfo(device);
+			// create a command-queue
+			g_cqCommandQue = clCreateCommandQueue(g_cxMainContext, device, 0, &ciErrNum);
+			oclCHECKERROR(ciErrNum, CL_SUCCESS);
+			//normally you would create and execute kernels using this command queue
+
+			clReleaseCommandQueue(g_cqCommandQue);
+		}
+
+		clReleaseContext(g_cxMainContext);
+
+	}
+	else {
+		printf("No OpenCL capable GPU found!");
+	}
+	return 0;
+}