[3dem] SPIDER_MPI with SCREEN.

[Qiu-Xing Jiang]

Dear colleagues,
Recently I encountered a technical issue with spider_mpi in a linux 
cluster when using detached screen console remotely. The cluster uses  
PUB-SUB to manage nodes.  In a regular console, I can use mpirun to 
start my jobs and everything works well. The limit is that I have to 
stay connected. SCREEN is a solution to eliminate this limit. But when I 
use SCREEN and request an assignment of nodes, and then pick up the same 
console in a different login session,  mpirun can launch jobs in all 
processors, but the processing does not produce any output. It appears 
that the environment setting is not right. I am writing to find if any 
of you ever encountered similar problems. Thanks in advance.

Qiu-Xing Jiang