Localizando processos que usam GPU

Question

Eu uso minha GPU principalmente para computação científica. Eu notei que o uso / temperatura recentemente ainda é alto, mesmo quando a ciência está suspensa. Eu suspeito strongmente que algo está usando minha GPU (além do meu sistema operacional, obviamente).

Mas como posso descobrir quais aplicativos estão usando minha CPU?

Eu tenho uma NVidia GT240, se for importante, no Windows XP.

    

Answer 1

Com o advento do GPGPU e sua facilidade de uso, muitos programas modernos gostariam de usá-lo, incluindo a maioria dos navegadores.

O

Process Explorer da SysInternals é uma ferramenta útil para rastrear as estatísticas de utilização da GPU por vários processos. Mostra

GPU Usage
GPU Committed Bytes
GPU System Byes
GPU Dedicated Bytes

Este deve ser um bom lugar para começar a caçar os processos nocivos (não realmente) que consomem sua GPU.

As estatísticas da GPU precisam ser ativadas no Process Explorer - > Selecione Colunas.

Observação: isso só funcionará com o Windows Vista e posterior devido a seguir

Microsoft redesigned its graphics driver model with Windows Vista and beyond to better support multiple graphics applications running simultaneously. Understanding this model is critical for understanding graphics performance on Windows. First, the OS associates each D3D device in each process with its own graphics context. Each API call sent to the context is batched in a list of commands for that context. When enough commands are built up, or for whatever reason the API feels it needs to flush the current command buffer, the D3D API dispatches a command buffer to the graphics kernel. These command buffers are not processed immediately but are instead stored in a queue for each context. The graphics card has a queue of tasks it is working on. Periodically, when there is room the graphics scheduler will wake up and add a task from one of the contexts with work in its context-specific command queue onto the graphics card work queue. It tries to do this in as fair a manner as possible while avoiding excessive resource thrashing, similar to a CPU scheduler. GPUView will allow us to see, as a function of time, the state of all the context-specific GPU queues as well as the queue for the graphics card. The graphics card is always working on the object at the front of its queue (or is idle if its queue is empty.) Note that GPUView is designed explicitly for this driver model and will not run on Windows XP.