Re: Memory allocation problem
Daniel T.
> First of all, I'm a newbie here (and to Macs) - so maybe
> I'm asking in the wrong forum. Just let me know if this
> is the case.
>
> I'm running a program called "Function" on a Mac computer.
> For variable of small range the program is working fine.
> But entering a larger range I'm facing memory problems.
> To be concrete, I obtain the following messages (which I don't fully
> understand as I'm usually not a mac user):
>
> Function(21411) malloc: *** vm_allocate(size=1134858240) failed (error
> code=3)
> So it looks like a memory issue.
> Do you know how I can increase the memory to make the program
> run?
Buy 1134858240 bytes of RAM? That is 1134858KB, or 1135MB. The fact that
the program is trying to use over a terabyte of RAM is a good clue that
the program itself is broken.
> Please let me know whether you need more information to give
> me advise.
Contact the author of the program.
Paul Russell
> Hans Balsam <hans_...@directbox.com> wrote:
>
>> First of all, I'm a newbie here (and to Macs) - so maybe
>> I'm asking in the wrong forum. Just let me know if this
>> is the case.
>>
>> I'm running a program called "Function" on a Mac computer.
>> For variable of small range the program is working fine.
>> But entering a larger range I'm facing memory problems.
>> To be concrete, I obtain the following messages (which I don't fully
>> understand as I'm usually not a mac user):
>>
>> Function(21411) malloc: *** vm_allocate(size=1134858240) failed (error
>> code=3)
>
>> So it looks like a memory issue.
>> Do you know how I can increase the memory to make the program
>> run?
>
> Buy 1134858240 bytes of RAM? That is 1134858KB, or 1135MB. The fact that
> the program is trying to use over a terabyte of RAM is a good clue that
> the program itself is broken.
>
Not bad - you're only off by 3 orders of magnitude. ;-) It's just over 1
GB, not 1 TB. If this is a 32 bit app then allocations of this size can
be problematic due to the island caused by the loading of dylds.
Typically you only ever allocate just over 2 GB in a single allocation
in a newly launched app, and in the more general case you may well have
problems with any large-ish allocations, or when the total allocation
exceeds what's available in the 32 bit address space. All these problems
go away in 64 bit apps.
>> Please let me know whether you need more information to give
>> me advise.
>
> Contact the author of the program.
And ask him if he has a 64 bit version of his app.
Paul