What is the practical limit with
integer(int64)?
For the compilers I used, practical upper limits with integer(64) are shown below:
| compiler | upper limit | count rate |
|---|---|---|
| Intel | 290000 years | 1000000 |
| PGI | 29000 years | 10000000 |
| GNU | 290 years | 1000000000 |
I agree with what gfortran docs says.
I NOW think that system_clock should be used with integer (int64).
My previous post is a pitfall I fell into when I didn’t know that.