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program wrong but still running

chljl
Beginner
‎11-11-2004 06:05 PM
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I use intel fortran for linux. I found when my program got wrong it still was running and output a lot of "??????????????". I hope it could stop and tell me what is wrong and where it is. Is there any option could do this?

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Steven_L_Intel1
Employee
‎11-11-2004 06:21 PM
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You are using Intel Fortran 7.1 or earlier, right? The ???? means a Not a Number (NaN). If you install and build with Intel Fortran 8.1 and use the -fpe0 option, it will probably give an error message when the NaN is generated. Add -traceback to the build to help narrow it down.
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