CODEWITHSUNDEEP
cudadirectx-12
porente
porente

Reputation: 443

reading CUDA buffer in directx12

after creating a GPU buffer in CUDA then exporting it using cuMemExportToShareableHandle() and getting a HANDLE then using the CUDA HANDLE as input in ID3D12Device::OpenSharedHandle() then fails with Access violation writing locationcan

(A)OpenSharedHandle() open CUDA handles or

(B)OpenSharedHandle() only opens handles created by CreateSharedHandle()
if it's (A) then there is something wrong with my handle
if it's (B) then is there another way to import the CUDA handle into directx12?

Upvotes: 1

Views: 253

Answers (1)

porente
porente

Reputation: 443

I asked on the official directx discord
OpenSharedHandle() can only open directx handles
but a handle created by directx12 CreateSharedHandle() can be open by CUDA cuMemImportFromShareableHandle()

Upvotes: 3

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