stack overflow

[luca_lombardi]

Hi, I have a problem with Intel Fortran Compiler.

My program works well when I use little dimension for bidimensional logical array variables; when I increase dimension, it gives me this error" Program Exception - Stack Overflow " when I pass these variables to subroutines. I need to increase dimension of this variabiles for my research. What can I do? I'm using a Intel Fortran Compiler Integration for Microsoft Visual Studio .NET 2003, Version 8.1.2790.2003, Copyright (C) 2002-2004 Intel Corporation.

Please help me.

Thank you

[Steven_L_Intel1]

If you were using a current compiler (10.1 is current) you could use the /heap-arrays option, but that is not in 8.1. Why are you using a compiler from 2004?

See this article for more information on stack overflows and what to do about them.

[luca_lombardi]

Ok,

I read the article but I can't deallocate variables becouse Ialways use them in my program . I'm using acompiler from 2004 becouse I'm working in a company. Can you help me?

[Steven_L_Intel1]

The suggestion was not to deallocate variables, but rather to use ALLOCATABLE variables instead of automatic arrays, but I don't think that will help in your particular case.

Show us the call that is getting the error, the declarations of all variables used in the call and the header (subroutine/function and declaration of all arguments) of the routine being called.

[luca_lombardi]

OK,

so in the main program Ideclare theselogical variables

logical

,allocatable :: popimping(:,:),popfilm(:,:),popimpingPC(:,:),popfilmPC(:,:), &

popimpingPM(:,:),popfilmPM(:,:),popimpingMPOOL(:,:),popfilmMPOOL(:,:), &

popimping_1(:,:),popfilm_1(:,:),popimpingPC_1(:,:), popimpingPM_1(:,:),popfilmPM_1(:,:), &

popfilmPC_1(:,:),popimpingMPOOL_1(:,:),popfilmMPOOL_1(:,:)

And then I allocate them:

allocate

(popimping(numbitmaximp,popiniz),popfilm(numbitmaxfilm,popiniz),popimpingPC(numbitmaximp,popiniz), &

popfilmPC(numbitmaxfilm,popiniz), &

popimpingPM(numbitmaximp,popiniz),popfilmPM(numbitmaxfilm,popiniz),popimpingMPOOL(numbitmaximp,popiniz),&

popfilmMPOOL(numbitmaxfilm,popiniz))

and

allocate

(popimping_1(numbitmaximp_1,popiniz),popfilm_1(numbitmaxfilm_1,popiniz),popimpingPC_1(numbitmaximp_1,popiniz), &

popfilmPC_1(numbitmaxfilm_1,popiniz), &

popimpingPM_1(numbitmaximp_1,popiniz),popfilmPM_1(numbitmaxfilm_1,popiniz), &

popimpingMPOOL_1(numbitmaximp_1,popiniz),popfilmMPOOL_1(numbitmaxfilm_1,popiniz))

where numbitmaximp=1450, numbitmaxfilm=2300, numbitmaximp_1=1550,numbitmaxfilm_1=2450; popiniz is the dimension that I would change, if it is 20 my program works, if it is 30 it does't work. I'd like it was 200 or more.

Then I call some of these variabiles in this subroutine:

call

crossover(0,nbit_imping,nbit_film,popiniz,pm,pc,nummax,numbitmaximp, &

popimping,ndimimp,popfilm,numbitmaxfilm, &

ndimfil,ndimfilm,ndimimping,dimimpingPC,popimpingPC,dimfilmPC,popfilmPC)

and I declare them in this subroutine

logical

:: popimping(numbitmaximp,popiniz),helpimpin(numbitmaximp,popiniz), &

popimpingPC(numbitmaximp,popiniz),helpfilm(numbitmaxfilm,popiniz), &

popfilmPC(numbitmaxfilm,popiniz),popfilm(numbitmaxfilm,popiniz)

This is the first subroutine that call these variabiles and then my program stops in this point when I pass variables.

What can I do?? Must I set something in visual studio to increase memory? Must I set something about logical variable?

thank you

popimpingPM(:,:),popfilmPM(:,:),popimpingMPOOL(:,:),popfilmMPOOL(:,:)

[Steven_L_Intel1]

In crossover, do you declare any arrays that are not arguments but which have bounds that are arguments? If so, you could change those to be ALLOCATABLE with dimension (:) or (:,:) and allocate them to the correct size.

The alternative is to change the stack size. Right click on the project, select Properties, Linker, System. Change "Stack Reserve Size" to a large value - start with 10000000 and see if that works. If not, double it. Repeat as needed.

[luca_lombardi]

thak you a lot!!! Now it works well!!! great