06-27-2011
Error running FORTRAN code
Hi,
I am new to this forum and do not know whether this is the appropriate place to post this question. Anyway am trying my luck.
I have a fortran program swanhcat.ftn, which is part of a wave modelling system. There is also a file hcat.nml which is required to run this program. The program's job is to combine many files (say 250) into a single file. It is of course not concatenation. The program was compiled and run. It worked fine when the number of input files to the program was a certain number (say 180) and failed when there were more number of input files. I should say that the input files are big. I give below details of one such file.
-rw-r--r-- 1 osf staff 15208731 Jun 27 12:40 restart_20090101.00-132
Actually the files are like restart_20090101.00-001, restart_20090101.00-002..... restart_20090101.00-180 and are the outputs of a numerical model run using 180 processors. Each processor does some part of the model run and thus the final information is contained in the 180 files together. I am trying to combine the information into a single file using the swanhcat.ftn program. It was a success when I tried with 180 processors (there were 180 input files).
When I tried with 181 input files(or higher), the program failed saying
'segmentation fault(core dumped)'. Does it have to do something with the memory used by the program?
How do I find out what is wrong?
Best regards,
s.
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