Change GPU priority of a process under Windows
Solution 1:
No, this is not possible. The GPU is not directly controlled by the operating system, so the same type of multitasking available for CPUs is simply not available for GPUs. If there is any multitasking support for your GPU, it would be controlled by the graphics card driver.
Generally speaking, however, a GPU operation runs until it is done; the driver may only be able to interrupt the operation.