Re: Program killed as soon as it starts to run

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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