Re: [ublas] Matrix Size/ Memory

From: James Sutherland (James.Sutherland_at_[hidden])
Date: 2008-01-25 18:23:05

127^5 * 5 gives 1.35e11 entries.  You would need on the order of 10-20 GB of
memory to store such an array.  Likely you are hitting system malloc
failures...

On 1/25/08 4:05 PM, "nisha kannookadan" <nishak44_at_[hidden]> wrote:

> 
> Hi
> 
>> Are your matrices sparse ? I.e. which part of matrice's volume
>> is filled by "meaning" entries ?
> 
> 
> No, my matrices arent sparse, but the allocation already creates problems:
> matrix mat(pow(127,5),5);
> 
> generates a memory error, without any filling. I saw there is a restriction
> for the maximum numbers of entries
> in a vector, is there something similar for matrices, could that be the
> reason?
> 
> Thanks
> Nisha K
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