CUDA Python 11.7.1 Release notes#

Released on June 29, 2022


  • Fix error propagation in CUDA Runtime bindings

  • Resolves issue #22


Source builds#

CUDA Python no longer re-declares CUDA types, instead it uses the types from CUDA C headers. As such source builds now need to access to latest CTK headers. In particular:

  1. “$CUDA_HOME/include” has latest CTK headers

  2. CTK headers have all types defined

(2) Certain CUDA types are not declared on mobile platforms and may face a “has not been declared” error during source builds. A temporary workaround is to use the headers found in In particular CUDA Python needs the following headers and their dependencies:

  • cuda.h

  • cudaProfiler.h

  • driver_types.h

  • cuda_runtime.h

  • nvrtc.h

This a short-term limitation and will be relaxed in a future release.

CUDA Functions Not Supported in this Release#

  • Symbol APIs

    • cudaGraphExecMemcpyNodeSetParamsFromSymbol

    • cudaGraphExecMemcpyNodeSetParamsToSymbol

    • cudaGraphAddMemcpyNodeToSymbol

    • cudaGraphAddMemcpyNodeFromSymbol

    • cudaGraphMemcpyNodeSetParamsToSymbol

    • cudaGraphMemcpyNodeSetParamsFromSymbol

    • cudaMemcpyToSymbol

    • cudaMemcpyFromSymbol

    • cudaMemcpyToSymbolAsync

    • cudaMemcpyFromSymbolAsync

    • cudaGetSymbolAddress

    • cudaGetSymbolSize

    • cudaGetFuncBySymbol

  • Launch Options

    • cudaLaunchKernel

    • cudaLaunchCooperativeKernel

    • cudaLaunchCooperativeKernelMultiDevice

  • cudaSetValidDevices

  • cudaVDPAUSetVDPAUDevice