[Pw_forum] segmentation fault in local.f90 line 228 PWCOND version 4.3.2

[Xiaoguang Zhang]

Finally got the code to flag the array bound problem:
Subscript #2 of the array VPPOTL has value 2161 which is greater than 
the upper bound of 1600

but I checked, nrx=54, nry=54, and nrx*nry=2916 so I don't understand 
why the upper bound is only 1600

On 02/03/2012 02:28 PM, Xiaoguang Zhang wrote:
> pwcond.x crashes when it is trying to access vppot(1,2161,1,1) while
> calculating the eigenvalues for the left lead. I inserted a print
> statement in local.f90 and verified that this is the element that caused
> the crash. After inserting these lines:
> *** 213,218 ****
> --- 213,220 ----
>     !
>     ! set and solve the eigenvalue equation for each slab
>     !
> +   print *, nrz,nrx*nry,npol
> +   print *, vppot(1,2161,1,1)
>       DO WHILE(kin.LE.kfin)
>
>          amat=(0.d0,0.d0)
> the program crashed at the print statement with the last output
> 20        2916           1
> which are nrz, nrx*nry, npol. There is no reason for it to crash.
>
> Full error message below:
> ../../espresso-4.3.2/bin/pwcond.x<  Alwirebig.cond.in>  Alwirebig.cond.out
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> Image              PC                Routine            Line
> Source
> pwcond.x           0000000000432BEF  local_1_                  228
> local.f90
> pwcond.x           000000000042FAA9  local_                     71
> local.f90
> pwcond.x           00000000004161FC  do_cond_                  421
> do_cond.f90
> pwcond.x           000000000041130C  MAIN__                     20
> condmain.f90
> pwcond.x           0000000000403922  Unknown               Unknown  Unknown
> libc.so.6          0000002A9580F4CB  Unknown               Unknown  Unknown
> pwcond.x           000000000040386A  Unknown               Unknown  Unknown
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