[alexoem]

Hi everyone,

I'm running some combustion cases on KIVA 3v. However, in some conditions, I get the following error as I run my code:

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
kiva3v_d12_natg 00000000004FCC34 Unknown Unknown Unknown
libpthread-2.23.s 00007F2D13167390 Unknown Unknown Unknown
kiva3v_d12_natg 00000000004D21FA Unknown Unknown Unknown
kiva3v_d12_natg 000000000043F947 Unknown Unknown Unknown
kiva3v_d12_natg 00000000004032AE Unknown Unknown Unknown
libc-2.23.so 00007F2D12DAC830 __libc_start_main Unknown Unknown
kiva3v_d12_natg 00000000004031A9 Unknown Unknown Unknown

Please, I was wondering if anyone knows what is the source of this error!

Thank you!

Alex

[selig5576]

What compiler are you using? In my experience the compiler can make a difference.

[alexoem]

Originally Posted by selig5576

What compiler are you using? In my experience the compiler can make a difference.

Selig, thank you for your reply.
I'm using the Intel® Fortran Compiler 17.0 for Linux.

[ssh123]

segmentation fault error is relevant to array bound exceeding or not associated pointers. You can use the compiler flag " -check bounds" which checks bounds of arrays for you.

[alexoem]

Originally Posted by ssh123

segmentation fault error is relevant to array bound exceeding or not associated pointers. You can use the compiler flag " -check bounds" which checks bounds of arrays for you.

Thank you for your reply. Using -check bounds I get the following error message immediately:

Forrtl: severe (408): fort: (2): Subscript #1 of the array AAA1 has value 2 which is greater than upper bound 1

Without -check bounds the simulations run but stop at the middle.

[FMDenaro]

Originally Posted by alexoem

Thank you for your reply. Using -check bounds I get the following error message immediately:

Forrtl: severe (408): fort: (2): Subscript #1 of the array AAA1 has value 2 which is greater than upper bound 1

Without -check bounds the simulations run but stop at the middle.

You got the error line. Check the index value 2 in the array AAA1 which is instead defined up to the 1 component

[ssh123]

I usually use gfortran but the message error implies that the array AAA1 is not allocated. You can debug your program by adding the following line before the error line:

if (.not. allocated(aaa1)) print*,'aa1 is not allocated'

and tell me what you get.