InSituMPI: substream parameter causes problems
Created by: pnorbert
The option meant for BPFile engine, if stays in for InSituMPI, the staging application will not work. Problem shows up on Titan and Summit
3: 4: [FTT:4] [a04n06:120279] *** An error occurred in MPI_Waitall 3: 4: [FTT:4] [a04n06:120279] *** reported by process [2751481843,4] 3: 4: [FTT:4] [a04n06:120279] *** on communicator MPI_COMM_WORLD 3: 4: [FTT:4] [a04n06:120279] *** MPI_ERR_TRUNCATE: message truncated 3: 4: [FTT:4] [a04n06:120279] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,