Creation and Cleanup of CUcontext

Accelerated Computing CUDA CUDA Programming and Performance
10

Solved here, extra function call to vpiContextSetCurrent is required to bind VPI context to the thread, overall structure is as follows:

CUcontext cuCtx;
cuCtxCreate(&cuCtx, CU_CTX_MAP_HOST, 0);

VPIContext vpiCtx;
vpiContextCreate(VPI_BACKEND_CUDA, &vpiCtx);
vpiContextSetCurrent(vpiCtx);

... do work ...

vpiContextDestroy(vpiCtx);
cuCtxDestroy(cuCtx);