请问怎么找进程卡死的原因啊

[eirc]

运行到mpi——barrier前有进程进入了死循环执行报错
[vn000002:mpi_rank_1][MPIDI_CH3_Abort] Fatal error in MPI_Info_set:
Invalid argument, error stack:
MPI_Info_set(117): MPI_Info_set(info=0x8b6588e9, key=cb_buffer_size, value=16777216) failed
MPI_Info_set(69).: Invalid MPI_Info
: No such file or directory (2)
[vn000002:mpi_rank_2][MPIDI_CH3_Abort] Fatal error in MPI_Info_set:
Invalid argument, error stack:
MPI_Info_set(117): MPI_Info_set(info=0xffff7fe0, key=cb_buffer_size, value=16777216) failed
MPI_Info_set(69).: Invalid MPI_Info