cuDev            1967 opal/mca/common/cuda/common_cuda.c     CUdevice cuDev;
cuDev            1970 opal/mca/common/cuda/common_cuda.c     res = cuFunc.cuCtxGetDevice(&cuDev);
cuDev            1976 opal/mca/common/cuda/common_cuda.c     *devicenum = cuDev;