Hello,
I am trying to solve a over-determined set of equations A*x = b using mldivide function as x = A\b; I am getting out of memory error!! Following is the description of the matrices: A = 19000000 x 4900 but sparse consuming 750MB of space. (have to store two of such matrix) b = 19000000 x 1 but sparse 32 bytes.
I tried this on a system with 16 GB of RAM. It went out of memory. On typing
>>help memory for 64 bit version MATLAB 2013a (I am using for windows) it shows: Max. possible array = 4577MB Memory available for all arrays = 4577MB Memory used by MATLAB = 330MB Physical Memory(RAM) = 3327 MB
I believe that there is internal restriction for MATLAB to use memory but I don't know how to go about it?
I tried this problem on a computer with 64GB of memory too and still it goes out of memory!!
Please help!!
Thanks in advance.
Puneet
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