cerr 51 opal/mca/hwloc/hwloc201/hwloc/include/hwloc/cudart.h cudaError_t cerr; cerr 54 opal/mca/hwloc/hwloc201/hwloc/include/hwloc/cudart.h cerr = cudaGetDeviceProperties(&prop, idx); cerr 55 opal/mca/hwloc/hwloc201/hwloc/include/hwloc/cudart.h if (cerr) {