pub unsafe extern "C" fn cuMemFree_v2(dptr: CUdeviceptr) -> CUresultExpand description
\brief Frees device memory
Frees the memory space pointed to by \p dptr, which must have been returned by a previous call to one of the following memory allocation APIs - ::cuMemAlloc(), ::cuMemAllocPitch(), ::cuMemAllocManaged(), ::cuMemAllocAsync(), ::cuMemAllocFromPoolAsync()
Note - This API will not perform any implict synchronization when the pointer was allocated with ::cuMemAllocAsync or ::cuMemAllocFromPoolAsync. Callers must ensure that all accesses to these pointer have completed before invoking ::cuMemFree. For best performance and memory reuse, users should use ::cuMemFreeAsync to free memory allocated via the stream ordered memory allocator. For all other pointers, this API may perform implicit synchronization.
\param dptr - Pointer to memory to free
\return ::CUDA_SUCCESS, ::CUDA_ERROR_DEINITIALIZED, ::CUDA_ERROR_NOT_INITIALIZED, ::CUDA_ERROR_INVALID_CONTEXT, ::CUDA_ERROR_INVALID_VALUE \notefnerr
\sa ::cuArray3DCreate, ::cuArray3DGetDescriptor, ::cuArrayCreate, ::cuArrayDestroy, ::cuArrayGetDescriptor, ::cuMemAlloc, ::cuMemAllocHost, ::cuMemAllocPitch, ::cuMemAllocManaged, ::cuMemAllocAsync, ::cuMemAllocFromPoolAsync, ::cuMemcpy2D, ::cuMemcpy2DAsync, ::cuMemcpy2DUnaligned, ::cuMemcpy3D, ::cuMemcpy3DAsync, ::cuMemcpyAtoA, ::cuMemcpyAtoD, ::cuMemcpyAtoH, ::cuMemcpyAtoHAsync, ::cuMemcpyDtoA, ::cuMemcpyDtoD, ::cuMemcpyDtoDAsync, ::cuMemcpyDtoH, ::cuMemcpyDtoHAsync, ::cuMemcpyHtoA, ::cuMemcpyHtoAAsync, ::cuMemcpyHtoD, ::cuMemcpyHtoDAsync, ::cuMemFreeHost, ::cuMemGetAddressRange, ::cuMemGetInfo, ::cuMemHostAlloc, ::cuMemFreeAsync, ::cuMemHostGetDevicePointer, ::cuMemsetD2D8, ::cuMemsetD2D16, ::cuMemsetD2D32, ::cuMemsetD8, ::cuMemsetD16, ::cuMemsetD32, ::cudaFree