Dear Yanling Li, > > forrtl: severe (59): list-directed I/O syntax error, unit 51, file > > /storage/SCSI/st12/home/user/isspzz/work/ylli/pwscf/ReN/new/test/a2Fq2r.51 > > > This means you are unable to read or write the corresponding file, did you check your disk quota/free space/bad sectors/etc.? O. Baris Malcioglu Ph.D. Candidate METU Physics