Mixing Graphics and Compute with multiple GPUs, Alina Alt - Nvidia

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Simple OpenGL-CUDA interop sample: Setup and Register of Texture Objects GLuint imageTex; cudaGraphicsResource_t cudaResourceTex; //OpenGL texture creation glGenTextures(1, &imageTex); glBindTexture(GL_TEXTURE_2D, imageTex); //set texture parameters here glTexImage2D(GL_TEXTURE_2D,0, GL_RGBA8UI_EXT, width, height, 0, GL_RGBA_INTEGER_EXT, GL_UNSIGNED_BYTE, NULL); glBindTexture(GL_TEXTURE_2D, 0); //Registration with CUDA cudaGraphicsGLRegisterImage (&cudaResourceTex, imageTex, GL_TEXTURE_2D, cudaGraphicsRegisterFlagsNone); NVIDIA Confidential
Simple OpenGL-CUDA interop sample unsigned char *memPtr; cudaArray *arrayPtr; while (!done) { } cudaGraphicsMapResources(1, &cudaResourceBuf, cudaStream); cudaGraphicsResourceGetMappedPointer((void **)&memPtr, &size, doWorkInCUDA(cudaArray, memPtr, cudaStream); NVIDIA Confidential cudaResourceBuf); cudaGraphicsUnmapResources(1, & cudaResourceBuf, cudaStream); doWorkInGL(imagePBO, imageTex);
Page 1 and 2: Mixing Graphics and Compute with mu
Page 3 and 4: Compute and Visualize the same data
Page 5: Simple OpenGL-CUDA interop sample:
Page 9 and 10: Interoperability behavior:single GP
Page 11 and 12: Simple OpenGL-CUDA interop sample I
Page 13 and 14: Interoperability behavior: multiple
Page 15 and 16: Application Example:Adobe Premiere
Page 17 and 18: API Interoperability hides all the
Page 19 and 20: Application Design Considerations C

Mixing Graphics and Compute with multiple GPUs, Alina Alt - Nvidia

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