Re: [Numpy-discussion] Memory usage of numpy-arrays

2010-07-08 Thread Hannes Bretschneider
Sebastian Haase gmail.com> writes: > > I would expect a 700MB text file translate into less than 200MB of > data - assuming that you are talking about decimal numbers (maybe > total of 10 digits each + spaces) and saving as float32 binary. > So the problem would "only" be the loading in - rathe

[Numpy-discussion] Memory usage of numpy-arrays

2010-07-08 Thread Hannes Bretschneider
Dear NumPy developers, I have to process some big data files with high-frequency financial data. I am trying to load a delimited text file having ~700 MB with ~ 10 million lines using numpy.genfromtxt(). The machine is a Debian Lenny server 32bit with 3GB of memory. Since the file is just 700MB I