Module memuse
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Functions for measuring memory usage, to allow usage to be optimized.
Examples:
bin/python -c 'execfile("topo/misc/memuse.py") ; print topsize_mb()'
./topographica -c 'from topo.misc import memuse' -c 'print memuse.topsize_mb()'
./topographica -c 'from topo.misc import memuse, asizeof' -c 'print memuse.topsize_mb()'
./topographica -a -c 'from topo.misc import memuse, asizeof' -c 'print memuse.topsize_mb()'
./topographica -a -c 'from topo.misc import memuse, asizeof' examples/tiny.ty -c 'print memuse.allsizes_mb()'
./topographica -a -c 'from topo.misc import memuse, asizeof' -c 'memuse.memuse_batch("examples/tiny.ty",cortex_density=20)'
./topographica -a -c 'from topo.misc import memuse, asizeof' -c 'memuse.memuse_batch("examples/tiny.ty",times=[0,100],analysis_fn=memuse.plotting_and_saving_analysis_fn,cortex_density=20)'
$Id: memuse.py 11326 2010-07-30 15:42:45Z jbednar $
Version:
$Revision: 10367 $
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cmd_to_string(cmd)
Run a system command as in os.system(), but capture the stdout and return it as a string. |
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topsize()
Return the RES size of this process as reported by the top(1) command. |
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mb(bytes)
Format the given value in bytes as a string in megabytes |
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topsize_mb()
String-formatted version of the RES size of this process reported by top(1). |
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simsize_mb()
String-formatted version of the value reported by asizeof(topo.sim). |
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wtsize_mb()
String-formatted version of the memory taken by the weights, from print_sizes(). |
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default_memuse_analysis_fn(prefix='')
Basic memuse function for use with memuse_batch() |
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plotting_and_saving_analysis_fn(prefix='')
For use with memuse_batch() to test snapshot and plotting memory usage. |
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memuse_batch(script_file,
times=[0],
analysis_fn=<function default_memuse_analysis_fn at 0xbe965a4>,
**params)
Similar to run_batch, but analyzes the memory requirement of a simulation at different times. |
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__package__ = 'topo.misc' |
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Return the size of topo.sim reported by asizeof.asizeof().
This estimate does not currently include any numpy arrays, and
may also be missing other important items.
Python 2.6 supports getsizeof() and a __sizeof__ attribute that user
code can implement, which should provide a more accurate estimate.
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Collates results from topsize, simsize, and wtsize.
Formatted to suggest that the topsize is made up of code (not
currently estimated), topo.sim (apart from weights), and weights.
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memuse_batch(script_file,
times=[0],
analysis_fn=<function default_memuse_analysis_fn at 0xbe965a4>,
**params)
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Similar to run_batch, but analyzes the memory requirement of a simulation at different times.
First, the specified script file will be run using the specified parameters.
Then at each of the specified times, the given analysis_fn (which
calls allsizes_mb() by default) is run. The output is labeled
with the script file, time, and parameters so that results from
different runs can be compared.
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