Re: Program killed as soon as it starts to run

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On Wed, Apr 30, 2008 at 8:56 PM, Reid Rivenburgh <reidr@xxxxxxxxx> wrote:
>  >  Dumb question - does this program require a lot of memory? Could the system
>  > run out of resources when you start the program so the system needs to kill
>  > it off in order to have enough resources to keep running?
>
>  I was kind of curious about that myself, so I re-ran it with no spec
>  file.  Here's its ps output:
>
>   PID USER     PRI  NI  VIRT   RES   SHR S CPU% MEM%   TIME+  Command
>   9704 reid      20   0 1724M   892   704 S  0.0  0.0  0:00.00 ./algencan
>
>  That 1724M looks a little scary.  (I have 4 GB here.)
>
>  I don't speak fortran too well, but the code does seem to allocate
>  some decently hefty amounts of memory, such as this:
>
>       double precision nl(nmax),c(mmax),rho(mmax)
>
>  where mmax is 500000.  There must be others, too.  Maybe you don't
>  want to run this thing on your low memory machine...!

Thanks a lot! The mystery is solved: the program needs a lot of memory!

Paul

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