I am running the Intel® Fortran Composer XE for OS X vs. 14.0.4 on a Mac OSX 10.11.5. with i7 and 16 GB RAM.
I have a problem while running a fixed format Fortran program.
I use IMSL to calculate a integral equation: F(T)=exp(-Ea/T) dT, where Ea is a 5*3 matrix of random number.
Say I use arrays of double precison REALs.
I'm running the latest ifort 2017.1 and found this unwanted behavior. It's illustrated by a short program and the result after two different compilations.
The attached code prints
$ ./test Before: 2 After: 1 ; w = 0.6000000