... why the OP identifies this as having anything to do with internal writes in particular. Is he claiming that internal writes are different from external ones? If so, that would indeed be strange. If not, ...comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... into this when trying to port some pre-f77 code. -- Richard Maine | Good judgement comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... they share most of the same code, an example being SIN and COS. (Not that you would write them in Fortran, but if you did...) One is even; the other is odd. ...others. -- Richard Maine | Good judgement comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... they share most of the same code, an example being SIN and COS. (Not that you would write them in Fortran, but if you did...) One is even; the other is odd. They might ... all. -- Richard Maine | Good judgement comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... two procedures share some of the same data). -- Richard Maine | Good judgement comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... subtle gfortran bug? Unlikely. Having multiple programs write to the same file without locking ... slow, compared to such things as writing a single record to it. If, ... on the open/close than on reading/writing the data. If that's the case,...last name at domain . net | experience comes from bad judgement. domain: summertriangle           |  -- Mark Twain Thank you for the detailed ...

...be some subtle gfortran bug? Unlikely. Having multiple programs write to the same file without locking is a ...is relatively slow, compared to such things as writing a single record to it. If, perhaps,... time on the open/close than on reading/writing the data. If that's the case, ...: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... the file, determine where to write to it, and then both write to that location in the file. My guess is that ... programs and the one that writes the final file, but those...from bad judgement. domain: summertriangle           |  -- Mark Twain Thank you Richard. It...for the period of the write statement and inquiring about the...the file before the next write would make this safe. I...

... two separate programs open the file, determine where to write to it, and then both write to that location in the file. My guess is that if you don't ...data between the multiple programs and the one that writes the final file, but those ways would tend to... email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain

... majority of the Fortran compilers on the planet. -- Richard Maine | Good judgement comes from experience; email: last name at domain . net | experience comes from bad judgement. domain: summertriangle | -- Mark Twain