[Wien] Allocation error 494

[Michael Gurnett]

As far as I know, unless your running on a 64 bit machine, the most the 
operating system can allocate in a single chunk is 2GB.

Michael


----- Original Message ----- 
From: "Rebecca Nicholls" <rebecca.nicholls at st-catherines.oxford.ac.uk>
To: <wien at zeus.theochem.tuwien.ac.at>
Sent: Tuesday, February 22, 2005 1:59 PM
Subject: [Wien] Allocation error 494


>
> hello everyone
>
> I was wondering if anyone had ever had trouble with allocation
> errors on a 4G machine.  I sucessfully got a large job to start
> on a 2G machine, using 1.5G RAM and 1G swap.  When I try to run
> this same job on a 4G machine, I get allocation errors.  It seems
> I'm having trouble using more than 2G out of the 4G of ram, and
> the program is not using any swap.
>
> I've changed the stacksize to unlimited:
>
> cputime         unlimited
> filesize        unlimited
> datasize        unlimited
> stacksize       unlimited
> coredumpsize    0 kbytes
> memoryuse       unlimited
> vmemoryuse      unlimited
> descriptors     1024
> memorylocked    unlimited
> maxproc         7168
>
> The 2G machine is a dual-processor (although I was only running
> the job on one processor) Xeon 2.2Gz running red hat linux (kernel
> 2.4.18-3smp).
>
> The 4G machine is a pentium 4 running suse (kernal 2.4.21-260-smp4G).
>
> Thanks a lot
> Best wishes
>
> Rebecca
>
> _______________________________________________
> Wien mailing list
> Wien at zeus.theochem.tuwien.ac.at
> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>
>