Hi,
my fortran compiler has very slow running times with Visual Studio 2019. Just before I used Geany and shell commands in Linux.
To test VS I run a program ( with two step sizes) . The calcuation times are 2 and 145 seconds with Geany/Linux. But with VS it takes 10 and 810 seconds. So it is much slower.
Then I tried the windows command shell and the running times are compared to the Linux ones.
I tried to set everything to fast speed in the VS compiler options, but it didn't improve anything.
What can there be wrong?
Link Copied
Which configuration ("debug" or "release") did you use in Visual Studio?
Attach a copy of the Visual Studio build-log (buildlog.htm) to your reply.
For more complete information about compiler optimizations, see our Optimization Notice.