Python API for HOST_ACCESSIBLE OrtValue allocation#28038
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ericcraw wants to merge 1 commit intomicrosoft:mainfrom
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Python API for HOST_ACCESSIBLE OrtValue allocation#28038ericcraw wants to merge 1 commit intomicrosoft:mainfrom
ericcraw wants to merge 1 commit intomicrosoft:mainfrom
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Adds memory_info= parameter to OrtValue.ortvalue_from_shape_and_type(), backed by two new C-level factory methods that look up the registered shared allocator via the full OrtMemoryInfo (including mem_type). This is required because the current shared allocator query doesn't include the memory type making HOST_ACCESSIBLE invisible to python. UsesCpuMemory() is used in GetPyObjFromTensor so that tensors in HOST_ACCESSIBLE memory are returned as zero-copy numpy views.
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Description
Adds memory_info= parameter to OrtValue.ortvalue_from_shape_and_type(), backed by two new C-level factory methods that look up the registered shared allocator via the full OrtMemoryInfo (including mem_type).
This is required because the current shared allocator query doesn't include the memory type making HOST_ACCESSIBLE invisible to python. UsesCpuMemory() is used in GetPyObjFromTensor so that tensors in HOST_ACCESSIBLE memory are returned as zero-copy numpy views.
Motivation and Context
Enable zero copy interop between numpy and ortvalue.