[Hardware][Misc] Make device agnostic

[wangshuai09]

This PR is based on #6080.
The new Platform for Neuron, Tpu, OpenVino, and is_pin_memory_available() and memory_profiler() in Platform make the device agnostic in different hardware related code.

Changes
with CudaMemoryProfiler() as m: -> with current_platform.memory_profiler() as m:
is_pin_memory_available() -> current_platform.is_pin_memory_available()
is_xpu() -> current_platform.is_xpu()
is_openvino() -> current_platform.is_openvino()
is_neuron() -> current_platform.is_neuron()
torch.cuda.synchronize() -> current_platform.synchronize()

RFC
There are a lot of hard code, such as torch.cuda, torch.xpu, If all the device related code is integrated into Platform, all the hardware may share same Executor/Worker/ModelRunner. Access and maintenance of third-party hardware equipment will become easy.

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[DarkLight1337]

Is the extra whitespace here intended?

[wangshuai09]

This whitespace is added after running bash format.sh, i will figure out which rule it follows.

[youkaichao]

thanks for doing this! that's the initial motivation I made #6080 .

we can do it step by step. one pr to change all would be too complicated with many merge conflict.

can you first put up with an RFC for the change, and later prs can be under the umbrella of that RFC.

the most complicated part would be, some api semantics and signature can be different for hardware backends. but we can start with easy ones, absorb code like is_xpu into platforms

[youkaichao]

also related:
pytorch/pytorch#128403
pytorch/pytorch#134978

[wangshuai09]

thanks for doing this! that's the initial motivation I made #6080 .

we can do it step by step. one pr to change all would be too complicated with many merge conflict.

can you first put up with an RFC for the change, and later prs can be under the umbrella of that RFC.

the most complicated part would be, some api semantics and signature can be different for hardware backends. but we can start with easy ones, absorb code like is_xpu into platforms

I'm very glad that my vision is consistent with your original idea, i will prepare a RFC to show why and how these changes needed, also create a to-do list to track the progress .