Segmentation fault on mac os with -qopenmp

[Polk__Jay]

I am using intel fortran on a mac with catalina.  My program compiles and runs fine as long as I don't include -qopenmp.  When i include that option, I get a segmentation fault. Increasing the stack size from the shell doesn't fix it.  Older posts suggest that it can be increased using -stack_size, but it doesn't seem to recognize that in my version. Is there another way to increase stack size, or other potential causes?

Thanks--Jay

[Ron_Green]

I will investigate this. I also am surprised that the compiler does not have the -stack_size option. At least I don't see it in -help.

[Polk__Jay]

Hi Ronald,

any luck with the stack size issue?

Thanks--Jay

[Ron_Green · Accepted solution]

stacksize is set by the linker.  The syntax is to pass -stack_size to the linker.  you use -Wl, for passing args to the linker like this

ifort -Wl,-stack_size -Wl,0x1000000 -o hello hello.f90

sorry it took so long to get back to this.  Let me know if this works.