rand() cause forrtl: severe (174): SIGSEGV, segmentation fault occurred

[xingzhi]

Hi all. I met an error seems come with the function of rand().

I'm using the Intel.Fortran.Compiler.8.1.021 (non commercial version) on a redhat linux enterprise v3.

Here is a simple test done in my computer. I just cannot understand what happening with this simple program. It runs good with my Compaq Fortran Compiler in Windows.

Please help and thanks in advance.

Regards,

Xingzhi

$ cat test.f

program testttt
integer Ns
parameter (Ns=16)
C
integer i
double precision htx
C
Do i=1,Ns

htx=rand()
print *, i,htx

End Do
C
End program

$ifort test.f
$./a.out

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
a.out 0804A3C0 Unknown Unknown Unknown
a.out 0804A228 Unknown Unknown Unknown
Unknown 4024179D Unknown Unknown Unknown
a.out 0804A0E1 Unknown Unknown Unknown

[TimP]

As the for_lib.pdf shows, add
use ifport

[xingzhi]

Thank you tim18,

Actually, I added a comma in the (), namely "rand(,)", the program runs...don't know why:)

Regards,

Xingzhi