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ioctl error

Hi, I wonder if anyone has encountered a strange error related to ifort io:

forrtl: Inappropriate ioctl for device

followed by, such as

forrtl: severe (38): error during write, unit -151, ....

forrtl: severe (28): CLOSE error, unit -151, file "Unknown"

I met this several times. I ran my code on a supercomputer under MPI, and during the running I have multiple simultaneous write, but on different processes, then I met this. 

Thanks!

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