[GE users] Mac G5 memory limits ?

Reuti reuti at staff.uni-marburg.de
Sat Mar 12 16:18:57 GMT 2005


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Oh, I got the wrong point. But indeed - I see it also on Mac OS X. The limits 
are not enforced. I had a look at the darwin-* lists at Apple, but didn't found 
any entry about it. - Reuti

Quoting Ron Chen <ron_chen_123 at yahoo.com>:

> Sorry Reuti, the discussions came from the bioclusters
> mailing list, and I invited him to join this list.
> 
> http://bioinformatics.org/pipermail/bioclusters/2005-March/002370.html
> http://bioinformatics.org/pipermail/bioclusters/2005-March/002371.html
> 
> 
> Anyway, it seems to be an OS bug. I have guest account
> on a Mac:
> 
> % sw_vers
> ProductName:    Mac OS X
> ProductVersion: 10.3.8
> BuildVersion:   7U16
> 
> % limit
> cputime         unlimited
> filesize        unlimited
> datasize        6144 kbytes
> stacksize       8192 kbytes
> coredumpsize    0 kbytes
> memoryuse       6144 kbytes
> descriptors     1024
> memorylocked    6144 kbytes
> maxproc         100
> 
> But it still allows me to allocate more memory than
> the limit. I am doing this interactively without SGE.
> 
> Please report this bug to Apple:
> https://bugreport.apple.com/
> 
> And also, we are making the PPC Linux port offical in
> the source tree very soon. May be you can replace OSX
> with PPCLinux?
> 
>  -Ron
> 
> --- Barry J Mcinnes <Barry.J.Mcinnes at noaa.gov> wrote:
> > Hi,
> > Thanks for the information. I didn't restate the
> > original problem in 
> > this email, as I was replying to a request for the
> > limit data.
> > The problem is :
> > We have set the memory limit to be 1GB, but the test
> > program does not 
> > get stopped at 1GB.
> > thanks barry
> > 
> > Reuti wrote:
> > 
> > >Until you get Tiger with 64 Bit support this looks
> > like the usual 4 GB limit 
> > >minus something for the system, e.g. PCI slots.
> > (per process on a Mac, unlike 
> > >PCs where the limit is in total AFAIK). - Reuti
> > >
> > >Quoting Barry J Mcinnes <Barry.J.Mcinnes at noaa.gov>:
> > >
> > >  
> > >
> > >>Here is the output of "ulimit -a" and then the PBS
> > getmem C program 
> > >>which just keeps grabbing memory every n seconds
> > >>The process keeps running until it hits the Mac
> > limit of 3.5GB ?
> > >>
> > >>core file size        (blocks, -c) 0
> > >>data seg size         (kbytes, -d) 10240
> > >>file size             (blocks, -f) unlimited
> > >>max locked memory     (kbytes, -l) unlimited
> > >>max memory size       (kbytes, -m) 1048576
> > >>open files                    (-n) 256
> > >>pipe size          (512 bytes, -p) 1
> > >>stack size            (kbytes, -s) 10240
> > >>cpu time             (seconds, -t) unlimited
> > >>max user processes            (-u) 100
> > >>virtual memory        (kbytes, -v) 20480
> > >>memory limit is 0kb cur, 10240kb hard
> > >>
> > >>nprocs = 1, amount = 10485760, delay = 15
> > >>process 1 (main) pid 553
> > >>cycle 1: mem amount 10240kb
> > >>cycle 2: mem amount 20480kb
> > >>cycle 3: mem amount 30720kb
> > >>cycle 4: mem amount 40960kb
> > >>cycle 5: mem amount 51200kb
> > >>cycle 6: mem amount 61440kb
> > >>cycle 7: mem amount 71680kb
> > >>cycle 8: mem amount 81920kb
> > >>cycle 9: mem amount 92160kb
> > >>...
> > >>cycle 349: mem amount 3573760kb
> > >>cycle 350: mem amount 3584000kb
> > >>cycle 351: mem amount 3594240kb
> > >>
> > >>    
> > >>
> > >
> > >
> > >
> >
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> 
> 
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