insert_stream 中的 insert_every报错

insert_stream 中 insert_every太小时，出现如下错误：

 

ERROR: Fix insert/stream (id ins): 'insert_every' or 'vel' is too small, or (bounding) radius of inserted particles too large (../fix_insert_stream.cpp:329)

 

 

insert_stream 中  insert_every太大时，出现如下错误：

 

ERROR: Fix insert/stream (id ins): insertion volume could not be distributed properly in parallel. Bad decomposition or insertion face extrusion is too small or outside domain (../fix_insert_stream.cpp:495)