10 AND 12-BIT GRAYSCALE TECHNOLOGY - Nvidia

AppendixTable 6.Multi-GPU CompatibilitySide Display Quadro GPUQuadro 600Quadro NVS 450Quadro NVS 420Quadro NVS 300Quadro NVS 310Quadro 2000DQuadro 2000Quadro FX 1800Quadro 5000Quadro 4000Quadro FX 4800Quadro FX 3800Quadro FX 4600Quadro FX 3700Quadro 6000Quadro FX 5800Quadro FX 5600Quadro 2000DQuadro 2000Quadro FX1800Grayscale GPUQuadro 5000Quadro 4000Quadro FX 4800Quadro FX 3800Quadro FX 4600Quadro FX 3700Quadro 6000Quadro FX 5800Quadro FX 5600 X XQuadro Plex 7000Quadro Plex D2Notes: These are theoretical compatibilities assuming the availability of 2 auxiliary power inputs. Inpractice, the physical system attributes such as availability of PCI slots and their placements willdetermine the final working set of cards from Table 6. The Quadro FX 5800 and Quadro FX 6000require the full 2 auxiliary power inputs and therefore only used with lower-end Quadro cards thatdo not have any auxiliary power requirements.The mixing of older pre-G80 cards is not supported in grayscale configurations.DIRECTED GPU RENDERINGIn a multi-GPU setup, the default behavior is for OpenGL commands to be sent to allGPUs. While this works for many applications, performance is gated by the capabilitiesof the lowest-end card. In a typical grayscale setup, the side display with GUI elementsis normally connected to a lower-end Quadro while the grayscale panels are connectedto a higher-end Quadro card. It is desirable to limit grayscale rendering to the GPUs thatare driving the grayscale panels and not involve the side GPU at all in the renderprocess. Previous approaches required programmatically selecting the GPU usingOpenGL extensions which can quickly become an additional programming burden for aradiology developer. The newer Quadro drivers have a feature called “DirectedRendering” that allows the user to target the GPU for rendering and decouple it from10 and 12-Bit Grayscale Technology TB-04631-001_v04 | 25