Can't read in 1GB data
I am trying to repeat the code in:
http://wesmckinney.com/blog/?p=635
But I can't read in the data. I have more than 4GB memory available (with 8GB memory in total), but still has the following problem:

In [2]: data = pd.read_csv("P00000001-ALL.csv", index_col=False)
Python(9081,0xacb01a28) malloc: **\* mmap(size=24051712) failed (error code=12)
**\* error: can't allocate region
**\* set a breakpoint in malloc_error_break to debug
