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what is the largest Array size please? ("out of memory" error) [message #14915]

Wed, 19 March 2008 18:11

nixnixnix
Messages: 415
Registered: February 2007
Location: Kelowna, British Columbia

Senior Member

I am dealing with large amounts of data and was attempting to dimension an array of the form

typedef WithDeepCopy<Array <doubleArray> > d2Array;

where doubleArray is defined as

typedef WithDeepCopy<Array <double> > doubleArray;

the d2Array enables me to have large fast grids of double precision floats and refer to it conveniently as

myArray[x][y]

Most of the time this works fine but when I tried to dimension a grid of doubles with

number of x = 13393
number of y = 5951

it falls over with "Out of memory" error. Now I would expect this to happen as the array size approaches 2GB but this array size appears to be a "mere" 617MB Smile

I have 4GB (3.2GB usable) of memory on my PC and it wasn't anywhere near all used up. It fell over about 2/3 of the way through dimensioning.

Is this by design or a fault?

Nick

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[Message index]

		what is the largest Array size please? ("out of memory" error) By: nixnixnix on Wed, 19 March 2008 18:11
		Re: what is the largest Array size please? ("out of memory" error) By: mirek on Sat, 22 March 2008 00:49
		Re: what is the largest Array size please? ("out of memory" error) By: nixnixnix on Sat, 22 March 2008 17:51
		Re: what is the largest Array size please? ("out of memory" error) By: mirek on Sat, 22 March 2008 20:28
		Re: what is the largest Array size please? ("out of memory" error) By: nixnixnix on Sat, 22 March 2008 22:11
		Re: what is the largest Array size please? ("out of memory" error) By: nixnixnix on Wed, 26 March 2008 13:10
		Re: what is the largest Array size please? ("out of memory" error) By: mirek on Wed, 26 March 2008 13:41
		Re: what is the largest Array size please? ("out of memory" error) By: mrjt on Wed, 26 March 2008 14:04
		Re: what is the largest Array size please? ("out of memory" error) By: nixnixnix on Wed, 26 March 2008 18:11
		Re: what is the largest Array size please? ("out of memory" error) By: mrjt on Wed, 26 March 2008 15:42

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