memory and large arrays

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John Molyneux
John Molyneux 2016 年 8 月 5 日
編集済み: Thorsten 2016 年 8 月 5 日
I read a large array in from a file :100-150 million by 8 double. After (in array) manipulation I only need the first three rows. These have to be converted (new arrays) and saved. Is there any advantage in deleting the surplus rows?

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Thorsten
Thorsten 2016 年 8 月 5 日
編集済み: Thorsten 2016 年 8 月 5 日
If you clear the variables that you do not need Matlab will less likely run out of memory. But if you don't have memory issues, you can keep them, of course. A matrix of 150 million x 8 uses 9.6 GB of memory on my system. You will probably like to get rid of it as soon as possible.

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