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Topic: 64bits and memory problem
Replies: 18   Last Post: Oct 2, 2013 5:39 AM

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Posts: 24
Registered: 3/9/05
64bits and memory problem
Posted: Oct 14, 2009 4:20 PM
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I recently shifted to Ubuntu@64bits and I have a problem with Matlab r2009a&memory.

The code makes use of a C file which is compiled via
>mex name.c

In a 32bits architecture everything is fine.
Under 64 bits the file is correctly compiled, but the programs stops with the error
Function "mxGetIr_700" is obsolete in file "compat32.cpp", line
(64-bit mex files using sparse matrices must be rebuilt with the
"-largeArrayDims" option. See the R2006b release notes for more

I then compiled using the suggested option:

>mex -largeArrayDims name.c

and in this case I have an "out of memory" error.

The system has 4Gb of RAM, 4Gb of swap and the system monitor gives about 1Gb of used RAM while running I guess the problem is related to the quantity of ram allocated to Matlab.

Any idea?

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