[DeviceAPI] Support querying total global memory #16398
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This PR introduces a new attribute for device backends: `total_global_memory`. This attributes returns the total available global memory on a device in bytes. Tested locally on CUDA/ROCm/Metal/OpenCL: ```python >>> import tvm >>> tvm.metal().total_global_memory 154618822656 ```
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tqchen
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This PR introduces a new attribute for device backends:
total_global_memory. This attributes returns the total available global memory on a device in bytes.Tested locally on CUDA/ROCm/Metal/OpenCL: